4-4
Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2
78-19415-01
Chapter 4 Configuring Bridging on the ML-Series Card
Monitoring and Verifying Bridging
Example 4-3 shows examples of monitoring and verifying bridging.

Example 4-3 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
Command Purpose

Step 1

ML_Series# clear bridge
bridge-group-number
Removes any learned entries from the forwarding database of a particular bridge group, clears the transmit, and receives counts for any statically configured forwarding entries.

Step 2

ML_Series# show bridge
{
bridge-group-number
|

interface-address

}
Displays classes of entries in the bridge forwarding database.

Step 3

ML_Series# show bridge verbose
Displays detailed information about configured bridge groups.

Step 4

ML_Series# show spanning-tree
[
bridge-group-number
][brief]
Displays detailed information about spanning tree.

•

bridge-group-number restricts the spanning tree information to specific bridge groups.

•

brief displays summary information about spanning tree.