Wednesday, September 21, 2011

DECnet Inter-Phase IV-Area Routing through DECnet Phase V Routing (IS-IS)


Below verifies the DECnet configuration on VAX1. VAX1 (1.2) is able to reach VAX2 (2.2):
VAX1#sh decnet
Global DECnet parameters for network 0:
  Local address is 1.2, node type is routing-iv
  Nearest Level-2 router is  1.1
  Maximum node is 1023, maximum area is 63, maximum visits is 63
  Maximum paths is 1, path split mode is normal
  Local maximum cost is 1022, maximum hops is 30
  Area maximum cost is 1022, maximum hops is 30
  Static routes *NOT* being sent in routing updates
  Cluster-alias routes *NOT* being sent in routing updates
VAX1#
VAX1#sh decnet neighbors
Net Node     Interface            MAC address    Flags
0   1.1      FastEthernet0/0      aa00.0400.0104 V
VAX1#
VAX1#sh decnet route
  Node       Cost  Hops           Next Hop to Node       Expires  Prio
*(Area)       10     1     FastEthernet0/0 -> 1.1
*1.1          10     1     FastEthernet0/0 -> 1.1           34     64  V
*1.2           0     0             (Local) -> 1.2
VAX1#
VAX1#debug decnet packets
DECnet packet forwarding debugging is on
VAX1#
VAX1#ping 2.2

Type escape sequence to abort.
Sending 5, 100-byte DECnet echos to atg 0 area.node 2.2, timeout is 5 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 88/136/252 ms
VAX1#
00:02:15: DNET-PKT: Packet fwded from 1.2 to 2.2, via 1.1, snpa aa00.0400.0104, FastEthernet0/0
00:02:16: Source address: 2.2
00:02:16: DNET: echo response from 2.2

00:02:16: DNET-PKT: Packet fwded from 1.2 to 2.2, via 1.1, snpa aa00.0400.0104, FastEthernet0/0
00:02:16: Source address: 2.2
00:02:16: DNET: echo response from 2.2

00:02:16: DNET-PKT: Packet fwded from 1.2 to 2.2, via 1.1, snpa aa00.0400.0104, FastEthernet0/0
00:02:16: Source address: 2.2
00:02:16: DNET: echo response from 2.2

00:02:16: DNET-PKT: Packet fwded from 1.2 to 2.2, via 1.1, snpa aa00.0400.0104, FastEthernet0/0
00:02:16: Source address: 2.2
00:02:16: DNET: echo response from 2.2

00:02:16: DNET-PKT: Packet fwded from 1.2 to 2.2, via 1.1, snpa aa00.0400.0104, FastEthernet0/0
00:02:16: Source address: 2.2
00:02:16: DNET: echo response from 2.2

VAX1#

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