Scenario 1
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 126 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode desirable end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 126 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode desirable end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:11: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:01:05.207 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:22, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 2 packets/sec 102 packets input, 18035 bytes, 0 no buffer Received 78 broadcasts (78 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 78 multicast, 0 pause input 0 input packets with dribble condition detected 516 packets output, 39474 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:21, output 00:00:06, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 532 packets input, 46475 bytes, 0 no buffer Received 510 broadcasts (510 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 510 multicast, 0 pause input 0 input packets with dribble condition detected 59 packets output, 9314 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 1000 bits/sec, 2 packets/sec 625 packets input, 63942 bytes, 0 no buffer Received 579 broadcasts (579 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 579 multicast, 0 pause input 0 input packets with dribble condition detected 560 packets output, 47832 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:01:07.528 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 518 packets input, 39606 bytes, 0 no buffer Received 494 broadcasts (494 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 494 multicast, 0 pause input 0 input packets with dribble condition detected 107 packets output, 18407 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:29, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 57 packets input, 9182 bytes, 0 no buffer Received 32 broadcasts (32 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 33 multicast, 0 pause input 0 input packets with dribble condition detected 544 packets output, 47307 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); To Jan 1 00:01:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flap ping between port Fa0/2 and port Fa0/1tal output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# Jan 1 00:01:30: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:31: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:11: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:04:11: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:04:31: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 C3560#
Scenario 2
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 126 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode desirable end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 126 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode desirable end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:01:04.755 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:22, output 00:00:02, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 269 packets input, 34559 bytes, 0 no buffer Received 187 broadcasts (174 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 174 multicast, 0 pause input 0 input packets with dribble condition detected 1128 packets output, 83309 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:21, output 00:00:04, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1209 packets input, 96693 bytes, 0 no buffer Received 1155 broadcasts (1143 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1143 multicast, 0 pause input 0 input packets with dribble condition detected 114 packets output, 16389 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:50, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1464 packets input, 130360 bytes, 0 no buffer Received 1333 broadcasts (1308 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1308 multicast, 0 pause input 0 input packets with dribble condition detected 1217 packets output, 98090 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 12 Port 65 (Port-channel1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Root FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:01:06.345 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:28, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1128 packets input, 83309 bytes, 0 no buffer Received 1069 broadcasts (1069 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1069 multicast, 0 pause input 0 input packets with dribble condition detected 279 packets output, 35281 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:29, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 112 packets input, 16257 bytes, 0 no buffer Received 54 broadcasts (54 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 55 multicast, 0 pause input 0 input packets with dribble condition detected 1219 packets output, 97415 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# ================================================================================ C2950# Jan 1 00:01:34: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/1 in err-disable state Jan 1 00:01:34: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/2 in err-disable state Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface Port-channel1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C2950# C2950#sh int fa0/1 FastEthernet0/1 is down, line protocol is down (err-disabled) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:53, output 00:00:51, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 305 packets input, 37336 bytes, 0 no buffer Received 220 broadcasts (207 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 207 multicast, 0 pause input 0 input packets with dribble condition detected 1133 packets output, 84024 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is down, line protocol is down (err-disabled) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:56, output 00:00:54, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1242 packets input, 99274 bytes, 0 no buffer Received 1186 broadcasts (1174 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1174 multicast, 0 pause input 0 input packets with dribble condition detected 119 packets output, 17104 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (err-disabled) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:56, output 00:02:12, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1526 packets input, 135258 bytes, 0 no buffer Received 1389 broadcasts (1364 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1360 multicast, 0 pause input 0 input packets with dribble condition detected 1225 packets output, 99392 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) - Fa0/1(D) Fa0/2(D) C2950# ================================================================================ C3560# Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C3560# C3560#sh int fa0/1 FastEthernet0/1 is down, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:01:13, output 00:01:10, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1133 packets input, 84024 bytes, 0 no buffer Received 1071 broadcasts (1071 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1071 multicast, 0 pause input 0 input packets with dribble condition detected 313 packets output, 37952 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is down, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:01:15, output 00:01:13, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 117 packets input, 16972 bytes, 0 no buffer Received 56 broadcasts (56 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 56 multicast, 0 pause input 0 input packets with dribble condition detected 1250 packets output, 99890 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(D) Fa0/2(D) C3560#
Scenario 3
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 121 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode auto end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 121 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode auto end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:11: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:01:07.135 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:29, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 2 packets/sec 473 packets input, 59249 bytes, 0 no buffer Received 369 broadcasts (341 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 341 multicast, 0 pause input 0 input packets with dribble condition detected 1370 packets output, 101954 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:29, output 00:00:02, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1569 packets input, 131304 bytes, 0 no buffer Received 1497 broadcasts (1472 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1471 multicast, 0 pause input 0 input packets with dribble condition detected 162 packets output, 22230 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 1000 bits/sec, 2 packets/sec 2005 packets input, 188177 bytes, 0 no buffer Received 1829 broadcasts (1778 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1776 multicast, 0 pause input 0 input packets with dribble condition detected 1487 packets output, 121304 bytes, 0 underruns 0 output errors, 0 collisions, 5 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:40: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:00:57: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:01:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flap ping between port Fa0/2 and port Fa0/1 C3560# C3560#sh clock 00:01:11.021 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1375 packets input, 102282 bytes, 0 no buffer Received 1294 broadcasts (1294 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1294 multicast, 0 pause input 0 input packets with dribble condition detected 490 packets output, 60519 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:02, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 161 packets input, 22162 bytes, 0 no buffer Received 81 broadcasts (81 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 81 multicast, 0 pause input 0 input packets with dribble condition detected 1592 packets output, 132970 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# Jan 1 00:01:40: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:01:57: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:40: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:57: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:40: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:56: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 C3560#
Scenario 4
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 121 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode auto end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 121 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode auto end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:00:50.399 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:13, output 00:00:03, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 585 packets input, 71282 bytes, 0 no buffer Received 429 broadcasts (401 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 401 multicast, 0 pause input 0 input packets with dribble condition detected 1915 packets output, 140986 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:13, output 00:00:04, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2137 packets input, 173481 bytes, 0 no buffer Received 2035 broadcasts (2010 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2010 multicast, 0 pause input 0 input packets with dribble condition detected 211 packets output, 28526 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:36, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2676 packets input, 241807 bytes, 0 no buffer Received 2422 broadcasts (2371 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2371 multicast, 0 pause input 0 input packets with dribble condition detected 2066 packets output, 165656 bytes, 0 underruns 0 output errors, 0 collisions, 5 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 12 Port 65 (Port-channel1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Root FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:52.034 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:14, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1915 packets input, 140986 bytes, 0 no buffer Received 1806 broadcasts (1806 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1806 multicast, 0 pause input 0 input packets with dribble condition detected 605 packets output, 72774 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:15, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 209 packets input, 28394 bytes, 0 no buffer Received 101 broadcasts (101 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 101 multicast, 0 pause input 0 input packets with dribble condition detected 2156 packets output, 174909 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# ================================================================================ C2950# Jan 1 00:01:34: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/1 in err-disable state Jan 1 00:01:34: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/2 in err-disable state Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface Port-channel1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C2950# ================================================================================ C3560# Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:01:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:01:36: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C3560#
Scenario 5
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:00:54.543 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:17, output 00:00:09, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 645 packets input, 75963 bytes, 0 no buffer Received 484 broadcasts (456 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 456 multicast, 0 pause input 0 input packets with dribble condition detected 1977 packets output, 145836 bytes, 0 underruns 0 output errors, 0 collisions, 8 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:17, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2193 packets input, 177838 bytes, 0 no buffer Received 2087 broadcasts (2062 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2062 multicast, 0 pause input 0 input packets with dribble condition detected 227 packets output, 30340 bytes, 0 underruns 0 output errors, 0 collisions, 8 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:05:07, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2781 packets input, 250129 bytes, 0 no buffer Received 2515 broadcasts (2464 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2464 multicast, 0 pause input 0 input packets with dribble condition detected 2142 packets output, 172200 bytes, 0 underruns 0 output errors, 0 collisions, 7 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:56.413 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:19, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1979 packets input, 145968 bytes, 0 no buffer Received 1861 broadcasts (1861 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1861 multicast, 0 pause input 0 input packets with dribble condition detected 664 packets output, 77413 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:20, output 00:00:20, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 225 packets input, 30208 bytes, 0 no buffer Received 108 broadcasts (108 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 108 multicast, 0 pause input 0 input packets with dribble condition detected 2212 packets output, 179288 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:07: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:36: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:09: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:36: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:09: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:03:36: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:04, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2343 packets input, 171125 bytes, 0 no buffer Received 2208 broadcasts (2208 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2208 multicast, 0 pause input 0 input packets with dribble condition detected 722 packets output, 85760 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:17, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 2 packets/sec 252 packets input, 33121 bytes, 0 no buffer Received 117 broadcasts (117 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 117 multicast, 0 pause input 0 input packets with dribble condition detected 2582 packets output, 208259 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 6
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:10: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:13: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:00:55.331 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:14, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 730 packets input, 86855 bytes, 0 no buffer Received 525 broadcasts (497 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 497 multicast, 0 pause input 0 input packets with dribble condition detected 2542 packets output, 185797 bytes, 0 underruns 0 output errors, 0 collisions, 8 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:15, output 00:00:09, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2714 packets input, 217550 bytes, 0 no buffer Received 2585 broadcasts (2560 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2560 multicast, 0 pause input 0 input packets with dribble condition detected 276 packets output, 36245 bytes, 0 underruns 0 output errors, 0 collisions, 8 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:02:25, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3382 packets input, 300413 bytes, 0 no buffer Received 3049 broadcasts (2998 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2998 multicast, 0 pause input 0 input packets with dribble condition detected 2750 packets output, 217678 bytes, 0 underruns 0 output errors, 0 collisions, 7 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:58.334 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:19, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2547 packets input, 186125 bytes, 0 no buffer Received 2402 broadcasts (2402 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2402 multicast, 0 pause input 0 input packets with dribble condition detected 751 packets output, 88497 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:21, output 00:00:20, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 275 packets input, 36177 bytes, 0 no buffer Received 129 broadcasts (129 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 129 multicast, 0 pause input 0 input packets with dribble condition detected 2735 packets output, 219192 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 12 Port 65 (Port-channel1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Root FWD 12 128.65 P2p C2950# Jan 1 00:02:28: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/1 in err-disable state Jan 1 00:02:28: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/2 in err-disable state Jan 1 00:02:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:02:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:02:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to down Jan 1 00:02:30: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:02:30: %LINK-3-UPDOWN: Interface Port-channel1, changed state to down Jan 1 00:02:30: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C2950# ================================================================================ C3560# Jan 1 00:02:27: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:02:27: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:02:28: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:02:28: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C3560#
Scenario 7
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:11: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:00:43.095 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:05, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 918 packets input, 110900 bytes, 0 no buffer Received 675 broadcasts (647 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 647 multicast, 0 pause input 0 input packets with dribble condition detected 3136 packets output, 230766 bytes, 0 underruns 0 output errors, 0 collisions, 10 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:05, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3227 packets input, 263075 bytes, 0 no buffer Received 3073 broadcasts (3048 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3048 multicast, 0 pause input 0 input packets with dribble condition detected 357 packets output, 47358 bytes, 0 underruns 0 output errors, 0 collisions, 10 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:01:01, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4065 packets input, 368823 bytes, 0 no buffer Received 3669 broadcasts (3618 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3618 multicast, 0 pause input 0 input packets with dribble condition detected 3404 packets output, 272412 bytes, 0 underruns 0 output errors, 0 collisions, 9 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:45.290 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:07, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3138 packets input, 230898 bytes, 0 no buffer Received 2950 broadcasts (2950 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2950 multicast, 0 pause input 0 input packets with dribble condition detected 943 packets output, 112990 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 356 packets input, 47290 bytes, 0 no buffer Received 168 broadcasts (168 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 168 multicast, 0 pause input 0 input packets with dribble condition detected 3253 packets output, 265229 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:04: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LRN 19 128.3 P2p Fa0/2 Desg LRN 19 128.4 P2p C3560# Jan 1 00:01:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:01:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:10: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:27: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:37: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 Jan 1 00:02:57: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.2029.6802 in vlan 1 is flapping between port Fa0/2 and port Fa0/1 C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3547 packets input, 259019 bytes, 0 no buffer Received 3339 broadcasts (3339 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3339 multicast, 0 pause input 0 input packets with dribble condition detected 997 packets output, 120509 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:23, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 375 packets input, 49296 bytes, 0 no buffer Received 174 broadcasts (174 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 174 multicast, 0 pause input 0 input packets with dribble condition detected 3511 packets output, 285895 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560#
Scenario 8
C2950#sh run int fa0/1 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 81 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:05: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up Jan 1 00:00:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up C2950# C2950#sh clock 00:00:44.115 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) - Fa0/1(Pd) Fa0/2(P) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 995 packets input, 120629 bytes, 0 no buffer Received 704 broadcasts (676 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 676 multicast, 0 pause input 0 input packets with dribble condition detected 3757 packets output, 274415 bytes, 0 underruns 0 output errors, 0 collisions, 10 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3789 packets input, 304860 bytes, 0 no buffer Received 3609 broadcasts (3584 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3584 multicast, 0 pause input 0 input packets with dribble condition detected 411 packets output, 53583 bytes, 0 underruns 0 output errors, 0 collisions, 10 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is up, line protocol is up (connected) Hardware is EtherChannel, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 100Mb/s, media type is unknown media type input flow-control is off, output flow-control is off Members in this channel: Fa0/1 Fa0/2 ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:02:06, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4699 packets input, 420017 bytes, 0 no buffer Received 4229 broadcasts (4178 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4178 multicast, 0 pause input 0 input packets with dribble condition detected 4066 packets output, 321442 bytes, 0 underruns 0 output errors, 0 collisions, 9 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Desg FWD 12 128.65 P2p C2950# ================================================================================ Jan 1 00:00:05: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:06: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:45.919 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:10, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3758 packets input, 274479 bytes, 0 no buffer Received 3540 broadcasts (3540 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3540 multicast, 0 pause input 0 input packets with dribble condition detected 1022 packets output, 122911 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:11, output 00:00:11, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 409 packets input, 53451 bytes, 0 no buffer Received 190 broadcasts (190 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 190 multicast, 0 pause input 0 input packets with dribble condition detected 3817 packets output, 307206 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LIS 19 128.3 P2p Fa0/2 Desg LIS 19 128.4 P2p C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 12 Port 65 (Port-channel1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Po1 Root FWD 12 128.65 P2p C2950# ================================================================================ C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# ================================================================================ C2950# Jan 1 00:02:24: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/1 in err-disable state Jan 1 00:02:24: %PM-4-ERR_DISABLE: channel-misconfig error detected on Po1, putting Fa0/2 in err-disable state Jan 1 00:02:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:02:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:02:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to down Jan 1 00:02:26: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:02:26: %LINK-3-UPDOWN: Interface Port-channel1, changed state to down Jan 1 00:02:26: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C2950# ================================================================================ C3560# Jan 1 00:02:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Jan 1 00:02:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Jan 1 00:02:26: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down Jan 1 00:02:26: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down C3560#
Scenario 9
C2950#sh run int fa0/1 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C2950# C2950#sh clock 00:00:49.775 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:11, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1106 packets input, 131967 bytes, 0 no buffer Received 807 broadcasts (779 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 779 multicast, 0 pause input 0 input packets with dribble condition detected 3846 packets output, 281642 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:11, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3894 packets input, 315742 bytes, 0 no buffer Received 3706 broadcasts (3681 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3681 multicast, 0 pause input 0 input packets with dribble condition detected 475 packets output, 59188 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:04:58, output 00:06:14, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:52.219 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:14, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3846 packets input, 281642 bytes, 0 no buffer Received 3616 broadcasts (3616 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3616 multicast, 0 pause input 0 input packets with dribble condition detected 1134 packets output, 134377 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:15, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 475 packets input, 59188 bytes, 0 no buffer Received 244 broadcasts (244 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 246 multicast, 0 pause input 0 input packets with dribble condition detected 3924 packets output, 318280 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LIS 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LRN 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 10
C2950#sh run int fa0/1 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C2950# C2950#sh clock 00:00:51.447 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:13, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1144 packets input, 138729 bytes, 0 no buffer Received 834 broadcasts (806 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 806 multicast, 0 pause input 0 input packets with dribble condition detected 4052 packets output, 297910 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:13, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 3934 packets input, 322700 bytes, 0 no buffer Received 3736 broadcasts (3711 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3711 multicast, 0 pause input 0 input packets with dribble condition detected 684 packets output, 75630 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:08:58, output 00:10:13, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:52.965 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:15, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4051 packets input, 297816 bytes, 0 no buffer Received 3804 broadcasts (3804 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3804 multicast, 0 pause input 0 input packets with dribble condition detected 1174 packets output, 141331 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:15, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 683 packets input, 75536 bytes, 0 no buffer Received 435 broadcasts (435 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 435 multicast, 0 pause input 0 input packets with dribble condition detected 3966 packets output, 325430 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LRN 19 128.3 P2p Fa0/2 Desg LRN 19 128.4 P2p C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 19 Port 1 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.1 P2p Fa0/2 Altn BLK 19 128.2 P2p C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# ================================================================================ C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 11
C2950#sh run int fa0/1 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C2950# C2950#sh clock 00:00:43.891 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:07, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 1329 packets input, 155428 bytes, 0 no buffer Received 1005 broadcasts (977 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 977 multicast, 0 pause input 0 input packets with dribble condition detected 4143 packets output, 306604 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:07, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 4113 packets input, 339003 bytes, 0 no buffer Received 3901 broadcasts (3876 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3876 multicast, 0 pause input 0 input packets with dribble condition detected 784 packets output, 84898 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:19:41, output 00:20:56, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:06: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:45.365 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4143 packets input, 306548 bytes, 0 no buffer Received 3876 broadcasts (3876 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3876 multicast, 0 pause input 0 input packets with dribble condition detected 1361 packets output, 158222 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:09, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 782 packets input, 84710 bytes, 0 no buffer Received 516 broadcasts (516 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 516 multicast, 0 pause input 0 input packets with dribble condition detected 4147 packets output, 341925 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:03: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LIS 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LRN 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 12
C2950#sh run int fa0/1 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 88 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode desirable end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C2950# C2950#sh clock 00:00:46.615 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1353 packets input, 160654 bytes, 0 no buffer Received 1021 broadcasts (993 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 993 multicast, 0 pause input 0 input packets with dribble condition detected 4316 packets output, 319866 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4138 packets input, 344293 bytes, 0 no buffer Received 3917 broadcasts (3892 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3892 multicast, 0 pause input 0 input packets with dribble condition detected 958 packets output, 98250 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:23:21, output 00:24:37, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:09: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:48.133 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:09, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4315 packets input, 319716 bytes, 0 no buffer Received 4033 broadcasts (4033 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4033 multicast, 0 pause input 0 input packets with dribble condition detected 1387 packets output, 163640 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:11, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 955 packets input, 97968 bytes, 0 no buffer Received 674 broadcasts (674 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 674 multicast, 0 pause input 0 input packets with dribble condition detected 4174 packets output, 347407 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LIS 19 128.3 P2p Fa0/2 Desg LIS 19 128.4 P2p C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 19 Port 1 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.1 P2p Fa0/2 Altn BLK 19 128.2 P2p C2950# ================================================================================ C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LRN 19 128.3 P2p Fa0/2 Desg LRN 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 13
C2950#sh run int fa0/1 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:17: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C2950# C2950#sh clock 00:00:48.687 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:11, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 1442 packets input, 170179 bytes, 0 no buffer Received 1104 broadcasts (1076 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1076 multicast, 0 pause input 0 input packets with dribble condition detected 4400 packets output, 327832 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:12, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 4226 packets input, 353754 bytes, 0 no buffer Received 3999 broadcasts (3974 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 3974 multicast, 0 pause input 0 input packets with dribble condition detected 1041 packets output, 106152 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:27:41, output 00:28:56, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:50.256 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:13, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4398 packets input, 327588 bytes, 0 no buffer Received 4105 broadcasts (4105 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4105 multicast, 0 pause input 0 input packets with dribble condition detected 1477 packets output, 173293 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:14, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1037 packets input, 105776 bytes, 0 no buffer Received 745 broadcasts (745 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 745 multicast, 0 pause input 0 input packets with dribble condition detected 4264 packets output, 357060 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:07: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LIS 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LRN 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 14
C2950#sh run int fa0/1 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:17: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C2950# C2950#sh clock 00:00:43.627 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:06, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1678 packets input, 199120 bytes, 0 no buffer Received 1224 broadcasts (1196 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1196 multicast, 0 pause input 0 input packets with dribble condition detected 5791 packets output, 427984 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:06, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4464 packets input, 382522 bytes, 0 no buffer Received 4121 broadcasts (4096 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4096 multicast, 0 pause input 0 input packets with dribble condition detected 2432 packets output, 206304 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 01:01:28, output 01:02:43, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:06: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:45.139 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 5786 packets input, 427514 bytes, 0 no buffer Received 5372 broadcasts (5372 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 5372 multicast, 0 pause input 0 input packets with dribble condition detected 1715 packets output, 202426 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:08, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2427 packets input, 205834 bytes, 0 no buffer Received 2014 broadcasts (2014 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2014 multicast, 0 pause input 0 input packets with dribble condition detected 4504 packets output, 386020 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:10: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LIS 19 128.3 P2p Fa0/2 Desg LIS 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LRN 19 128.3 P2p Fa0/2 Desg LRN 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 19 Port 1 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.1 P2p Fa0/2 Altn BLK 19 128.2 P2p C2950#
Scenario 15
C2950#sh run int fa0/1 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 0 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 61440 C3560# ================================================================================ C2950# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:08: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C2950# C2950#sh clock 00:00:45.367 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1782 packets input, 209938 bytes, 0 no buffer Received 1321 broadcasts (1293 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1293 multicast, 0 pause input 0 input packets with dribble condition detected 5873 packets output, 435740 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 1000 bits/sec, 1 packets/sec 4570 packets input, 393472 bytes, 0 no buffer Received 4220 broadcasts (4195 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4195 multicast, 0 pause input 0 input packets with dribble condition detected 2515 packets output, 214128 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 01:05:37, output 01:06:53, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:46.934 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:10, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 5869 packets input, 435308 bytes, 0 no buffer Received 5442 broadcasts (5442 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 5442 multicast, 0 pause input 0 input packets with dribble condition detected 1821 packets output, 213436 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:11, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2507 packets input, 213432 bytes, 0 no buffer Received 2081 broadcasts (2081 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2083 multicast, 0 pause input 0 input packets with dribble condition detected 4612 packets output, 397162 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LIS 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root LRN 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0011.2029.6800 Cost 19 Port 3 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.3 P2p Fa0/2 Altn BLK 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560#
Scenario 16
C2950#sh run int fa0/1 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/1 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int fa0/2 Building configuration... Current configuration : 83 bytes ! interface FastEthernet0/2 switchport mode trunk channel-group 1 mode auto end C2950# C2950#sh run int po1 Building configuration... Current configuration : 54 bytes ! interface Port-channel1 switchport mode trunk end C2950# C2950#sh run | in priority spanning-tree vlan 1 priority 61440 C2950# ================================================================================ C3560#sh run int fa0/1 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int fa0/2 Building configuration... Current configuration : 124 bytes ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive end C3560# C3560#sh run int po1 Building configuration... Current configuration : 92 bytes ! interface Port-channel1 switchport trunk encapsulation dot1q switchport mode trunk end C3560# C3560#sh run | in priority spanning-tree vlan 1 priority 0 C3560# ================================================================================ C2950# Jan 1 00:00:06: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:07: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Jan 1 00:00:17: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1 , changed state to up Jan 1 00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2 , changed state to up C2950# C2950#sh clock 00:00:46.575 UTC Fri Jan 1 1993 C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950# C2950#sh int fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6801 (bia 0011.2029.6801) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:10, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1815 packets input, 216109 bytes, 0 no buffer Received 1340 broadcasts (1312 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 1312 multicast, 0 pause input 0 input packets with dribble condition detected 6101 packets output, 453116 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int fa0/2 FastEthernet0/2 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0011.2029.6802 (bia 0011.2029.6802) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:10, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4603 packets input, 399643 bytes, 0 no buffer Received 4239 broadcasts (4214 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4214 multicast, 0 pause input 0 input packets with dribble condition detected 2743 packets output, 231504 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Auto-duplex, Auto-speed, media type is unknown media type input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 01:09:50, output 01:11:06, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4893 packets input, 440117 bytes, 0 no buffer Received 4411 broadcasts (4360 multicast) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 4356 multicast, 0 pause input 0 input packets with dribble condition detected 4117 packets output, 326330 bytes, 0 underruns 0 output errors, 0 collisions, 13 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C2950# C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 61441 Address 0011.2029.6800 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.1 P2p Fa0/2 Desg FWD 19 128.2 P2p C2950# ================================================================================ C3560# Jan 1 00:00:05: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up Jan 1 00:00:06: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up C3560# C3560#sh clock 00:00:47.940 UTC Fri Jan 1 1993 C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(w) Fa0/2(w) C3560# C3560#sh int fa0/1 FastEthernet0/1 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c83 (bia 0023.04a3.5c83) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:12, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 6096 packets input, 452590 bytes, 0 no buffer Received 5649 broadcasts (5649 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 5649 multicast, 0 pause input 0 input packets with dribble condition detected 1856 packets output, 219799 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int fa0/2 FastEthernet0/2 is up, line protocol is down (notconnect) Hardware is Fast Ethernet, address is 0023.04a3.5c84 (bia 0023.04a3.5c84) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:13, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2734 packets input, 230714 bytes, 0 no buffer Received 2288 broadcasts (2288 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 2290 multicast, 0 pause input 0 input packets with dribble condition detected 4647 packets output, 403525 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh int po1 Port-channel1 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out C3560# C3560#sh spanning-tree No spanning tree instance exists. C3560# Jan 1 00:01:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Jan 1 00:01:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LIS 19 128.3 P2p Fa0/2 Desg LIS 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg LRN 19 128.3 P2p Fa0/2 Desg LRN 19 128.4 P2p C3560# C3560#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address 0023.04a3.5c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 19 128.3 P2p Fa0/2 Desg FWD 19 128.4 P2p C3560# C3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I) C3560# ================================================================================ C2950#sh spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0023.04a3.5c80 Cost 19 Port 1 (FastEthernet0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1) Address 0011.2029.6800 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 15 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Root FWD 19 128.1 P2p Fa0/2 Altn BLK 19 128.2 P2p C2950# C2950#sh etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 u - unsuitable for bundling U - in use f - failed to allocate aggregator d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) PAgP Fa0/1(I) Fa0/2(I) C2950#
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