Catalyst 3750 Storm Control Quick Shot

C3750#sh run int fa1/0/1
Building configuration...

Current configuration : 150 bytes
!
interface FastEthernet1/0/1
 switchport mode access
 load-interval 30
 storm-control broadcast level pps 145k
 spanning-tree bpdufilter enable
end

C3750#sh run int fa1/0/2
Building configuration...

Current configuration : 117 bytes
!
interface FastEthernet1/0/2
 switchport mode access
 load-interval 30
 storm-control broadcast level pps 145k
end

C3750#
C3750#sh run int vlan 1
Building configuration...

Current configuration : 48 bytes
!
interface Vlan1
 no ip address
 shutdown
end

C3750#
C3750#sh cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
                  D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
C3750            Fas 1/0/2         175              S I   WS-C3750- Fas 1/0/1
C3750            Fas 1/0/1         175              S I   WS-C3750- Fas 1/0/2
C3750#
C3750#sh spanning-tree

VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    32769
             Address     000f.2395.f500
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
             Address     000f.2395.f500
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time  300 sec

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Fa1/0/1             Desg FWD 19        128.3    P2p
Fa1/0/2             Desg FWD 19        128.4    P2p


C3750#
C3750#sh spanning-tree int fa1/0/1 detail
 Port 3 (FastEthernet1/0/1) of VLAN0001 is designated forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.3.
   Designated root has priority 32769, address 000f.2395.f500
   Designated bridge has priority 32769, address 000f.2395.f500
   Designated port id is 128.3, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   Bpdu filter is enabled
   BPDU: sent 0, received 0
C3750#
C3750#sh spanning-tree int fa1/0/2 detail
 Port 4 (FastEthernet1/0/2) of VLAN0001 is designated forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.4.
   Designated root has priority 32769, address 000f.2395.f500
   Designated bridge has priority 32769, address 000f.2395.f500
   Designated port id is 128.4, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 25, received 0
C3750#
C3750#sh int fa1/0/1
FastEthernet1/0/1 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f503 (bia 000f.2395.f503)
  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)
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     45 packets input, 6219 bytes, 0 no buffer
     Received 39 broadcasts (39 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 39 multicast, 0 pause input
     0 input packets with dribble condition detected
     15 packets output, 4299 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
C3750#
C3750#sh int fa1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f504 (bia 000f.2395.f504)
  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 00:00:54, 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)
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     16 packets input, 4363 bytes, 0 no buffer
     Received 9 broadcasts (9 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 9 multicast, 0 pause input
     0 input packets with dribble condition detected
     48 packets output, 6411 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
C3750#
C3750#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
C3750(config)#int vlan 1
C3750(config-if)#ip add 192.168.1.1 255.255.255.0
C3750(config-if)#no shut
C3750(config-if)#end
C3750#
00:03:33.540: %LINK-3-UPDOWN: Interface Vlan1, changed state to up
00:03:33.641: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
C3750#
C3750#sh storm-control
Interface  Filter State   Upper        Lower        Current
---------  -------------  -----------  -----------  ----------
Fa1/0/1    Forwarding        145k pps     145k pps  140.57k pps
Fa1/0/2    Forwarding        145k pps     145k pps  140.57k pps
C3750#
C3750#sh int fa1/0/1
FastEthernet1/0/1 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f503 (bia 000f.2395.f503)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 70/255, rxload 70/255
  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)
  30 second input rate 27675000 bits/sec, 54051 packets/sec
  30 second output rate 27675000 bits/sec, 54051 packets/sec
     2628909 packets input, 168257605 bytes, 0 no buffer
     Received 2628896 broadcasts (68 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 68 multicast, 0 pause input
     0 input packets with dribble condition detected
     2770269 packets output, 177304581 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
C3750#
C3750#sh int fa1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f504 (bia 000f.2395.f504)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 89/255, rxload 89/255
  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)
  30 second input rate 35079000 bits/sec, 68512 packets/sec
  30 second output rate 35079000 bits/sec, 68512 packets/sec
     3053094 packets input, 195405445 bytes, 0 no buffer
     Received 3053081 broadcasts (32 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 32 multicast, 0 pause input
     0 input packets with dribble condition detected
     3194533 packets output, 204457477 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
C3750#
C3750#sh proc cpu hist

    6666666666666666666664444                              111
    1111111111122222111118888444445555544444555554444499999111
100
 90
 80
 70
 60 *********************
 50 *************************
 40 *************************
 30 *************************
 20 *************************
 10 *************************     *****     *****     ********
   0....5....1....1....2....2....3....3....4....4....5....5....
             0    5    0    5    0    5    0    5    0    5
               CPU% per second (last 60 seconds)

    22
    56
100
 90
 80
 70
 60
 50
 40
 30 **
 20 **
 10 ##
   0....5....1....1....2....2....3....3....4....4....5....5....
             0    5    0    5    0    5    0    5    0    5
               CPU% per minute (last 60 minutes)
              * = maximum CPU%   # = average CPU%



100
 90
 80
 70
 60
 50
 40
 30
 20
 10
   0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
             0    5    0    5    0    5    0    5    0    5    0    5    0
                   CPU% per hour (last 72 hours)
                  * = maximum CPU%   # = average CPU%

C3750#
C3750#terminal exec prompt timestamp
C3750#sh int fa1/0/1 | in time|packets input
No time source, *00:04:30.155 UTC Mon Mar 1 1993
     8147716 packets input, 521461642 bytes, 0 no buffer
C3750#sh int fa1/0/1 | in time|packets input
No time source, *00:04:31.421 UTC Mon Mar 1 1993
     8288880 packets input, 530496138 bytes, 0 no buffer
C3750#sh int fa1/0/1 | in time|packets input
No time source, *00:05:21.627 UTC Mon Mar 1 1993
     15366245 packets input, 983447498 bytes, 0 no buffer
C3750#sh int fa1/0/1 | in time|packets input
No time source, *00:05:22.734 UTC Mon Mar 1 1993
     15507504 packets input, 992488074 bytes, 0 no buffer
C3750#
C3750#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
C3750(config)#int range fa1/0/1-2
C3750(config-if-range)#storm-control ?
  action     Action to take for storm-control
  broadcast  Broadcast address storm control
  multicast  Multicast address storm control
  unicast    Unicast address storm control

C3750(config-if-range)#storm-control broadcast ?
  level  Set storm suppression level on this interface

C3750(config-if-range)#storm-control broadcast level ?
  <0.00 - 100.00>  Enter rising threshold
  bps              Enter suppression level in bits per second
  pps              Enter suppression level in packets per second

C3750(config-if-range)#storm-control broadcast level pps ?
  <0.0 - 10000000000.0>[k|m|g]  Enter rising threshold

C3750(config-if-range)#storm-control broadcast level pps 141k ?
  <0.0 - 10000000000.0>[k|m|g]  Enter falling threshold
  

C3750(config-if-range)#storm-control broadcast level pps 141k
C3750(config-if-range)#end
C3750#
C3750#sh storm-control
Load for five secs: 60%/27%; one minute: 62%; five minutes: 35%
No time source, *00:07:25.795 UTC Mon Mar 1 1993

Interface  Filter State   Upper        Lower        Current
---------  -------------  -----------  -----------  ----------
Fa1/0/1    Forwarding        141k pps     141k pps  140.29k pps
Fa1/0/2    Forwarding        141k pps     141k pps  140.29k pps
C3750#
00:07:25.846: %STORM_CONTROL-3-FILTERED: A Broadcast storm detected on Fa1/0/1. A packet filter action has been applied on the interface.
C3750#sh storm-control
Load for five secs: 22%/9%; one minute: 59%; five minutes: 35%
No time source, *00:07:30.392 UTC Mon Mar 1 1993

Interface  Filter State   Upper        Lower        Current
---------  -------------  -----------  -----------  ----------
Fa1/0/1    Forwarding        141k pps     141k pps        0 pps
Fa1/0/2    Forwarding        141k pps     141k pps        0 pps
C3750#
C3750#sh int fa1/0/1
Load for five secs: 6%/0%; one minute: 6%; five minutes: 17%
No time source, *00:12:13.348 UTC Mon Mar 1 1993

FastEthernet1/0/1 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f503 (bia 000f.2395.f503)
  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 00:00:04, 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)
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     32931151 packets input, 2107604205 bytes, 0 no buffer
     Received 32931088 broadcasts (327 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 327 multicast, 0 pause input
     0 input packets with dribble condition detected
     32931013 packets output, 2107595373 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
C3750#
C3750#sh int fa1/0/2
Load for five secs: 5%/0%; one minute: 6%; five minutes: 17%
No time source, *00:12:15.831 UTC Mon Mar 1 1993

FastEthernet1/0/2 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000f.2395.f504 (bia 000f.2395.f504)
  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 00:00:51, 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)
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     32931013 packets input, 2107595373 bytes, 0 no buffer
     Received 32930950 broadcasts (40 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 40 multicast, 0 pause input
     0 input packets with dribble condition detected
     32931152 packets output, 2107604269 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
C3750#