Chapter 16 Configuring Bridging on the ML-Series Card

Monitoring and Verifying Bridging

 

Command

Purpose

Step 3

 

 

ML_Series# show bridge verbose

Displays detailed information about configured bridge groups.

Step 4

 

 

ML_Series# show spanning-tree

Displays detailed information about spanning tree.

 

[bridge-group-number][brief]

bridge-group-numberrestricts the spanning tree information

 

 

 

 

to specific bridge groups.

 

 

brief displays summary information about spanning tree.

 

 

 

Example 16-3shows examples of monitoring and verifying bridging.

Example 16-3 Monitoring and Verifying Bridging

ML_Series# show bridge 1

Total of 1260 station blocks, 310 free

Codes: P - permanent, S - self

Bridge Group 1:

Maximum dynamic entries allowed: 1000

Current dynamic entry count: 1

Address

Action

Interface

0000.0001.3100

forward

FastEthernet0

ML_Series# show spanning-tree 1

Bridge group 1

is executing the rstp compatible Spanning Tree protocol

Bridge Identifier has priority 32768, sysid 1, address 000b.fcfa.339e

Configured hello time 2, max age 20, forward delay 15

We are the root of the spanning tree

Topology change flag not set, detected flag not set Number of topology changes 1 last change occurred 1w1d ago

from POS0.1

Times: hold 1, topology change 35, notification 2 hello 2, max age 20, forward delay 15

Timers: hello 0, topology change 0, notification 0, aging 300

Port 3 (FastEthernet0) of Bridge group 1 is designated disabled

Port path cost 19, Port priority 128, Port Identifier 128.3.

Designated root has priority 32769, address 000b.fcfa.339e

Designated bridge has priority 32769, address 000b.fcfa.339e

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: 0

Link type is point-to-point by default

BPDU: sent 0, received 0

Port 15 (POS0.1) of Bridge group 1 is designated down

Port path cost 37, Port priority 128, Port Identifier 128.15.

Designated root has priority 32769, address 000b.fcfa.339e

Designated bridge has priority 32769, address 000b.fcfa.339e

Designated port id is 128.15, 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 370832, received 4

Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

16-4

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Cisco Systems 15310-MA, 15310-CL manual Displays detailed information about spanning tree, To specific bridge groups, 16-4

15310-CL, 15310-MA specifications

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