From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Thu Oct 18 2001 - 11:21:43 GMT-3
I thought some people might like to see this info? I found it tough to
troubleshoot a bridging problem, but I quickly relearned how to read rifs
and got a lot more comfortable at changing a MAC address from canonical to
non-canonical and back. The best troubleshooting bridging commands I thought
were:
Transparent Bridging- show bridge verbose, and show arp
Source-Route Bridging- show source-bridge (make sure explorer packets are
rising when you are pinging from other side) show rif, show arp
Below are the outputs from my lab scenario after some pings from r11 to r9.
r9#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.70.11 35 0000.3052.9963 SNAP TokenRing0
Internet 172.16.70.9 - 0000.3090.c7de SNAP TokenRing0
r9#sh rif
Codes: * interface, - static, + remote
Dst HW Addr Src HW Addr How Idle (min) Routing Information Field
0005.772b.8c82 N/A To0 0 -
0000.3052.9963 N/A To0 0 0A10.0091.0042.3E82.00B0
0000.3090.c7de N/A To0 * -
r11#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.70.11 - 0000.0c4a.99c6 ARPA Ethernet0
Internet 172.16.70.9 37 0000.0c09.e37b ARPA Ethernet0
r4#sh rif
Codes: * interface, - static, + remote
Dst HW Addr Src HW Addr How Idle(min) Vlan Routing Information Field
0006.7c99.8605 N/A To0 * - -
0006.7c99.86c5 N/A To1 * - -
0000.3090.c7de N/A BG1 1 - 0A90.0091.0042.3E82.00B0
r4#sh bridge verbose
Total of 300 station blocks, 297 free
Codes: P - permanent, S - self
BG Hash Address Action Interface VC Age RX count TX count
1 1A/0 0050.736b.f6ec forward Ethernet0 - 1 1 0
1 5F/0 0000.0c4a.99c6 forward Ethernet0 - 2 8 6
1 98/0 0000.0c09.e37b forward RingGroup1000 2 6 6
Flood ports RX count TX count
Ethernet0 696 152
RingGroup1000 152 696
r4#sh source-bridge
Local Interfaces: receive transmit
srn bn trn r p s n max hops cnt cnt drops
To1 4 2 1000 * f 7 7 7 437 734 2
Global RSRB Parameters:
TCP Queue Length maximum: 100
Ring Group 1000:
No TCP peername set, TCP transport disabled
Maximum output TCP queue length, per peer: 100
Rings:
bn: 2 rn: 11 locvrt ma: 4006.7c99.8645 Bridge-group 1 fwd: 217
bn: 2 rn: 4 local ma: 4006.7c99.86c5 TokenRing1 fwd: 217
Explorers: ------- input ------- ------- output -------
spanning all-rings total spanning all-rings total
To1 111 102 213 517 0 517
Explorer fastswitching enabled
Local switched: 817 flushed 0 max Bps 38400
rings inputs bursts throttles output drops
To1 121 0 0 0
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 22:33:21 GMT-3