Chapter 4 Configuring Bridging on the ML-Series Card

Monitoring and Verifying Bridging

 

Command

Purpose

Step 1

 

 

ML_Series# clear bridge

Removes any learned entries from the forwarding database of a

 

bridge-group-number

particular bridge group, clears the transmit, and receives counts

 

 

for any statically configured forwarding entries.

Step 2

 

 

ML_Series# show bridge

Displays classes of entries in the bridge forwarding database.

 

{bridge-group-number

 

 

interface-address}

 

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 4-3shows 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

 

 

 

Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2

 

 

 

 

4-4

 

 

 

78-19415-01

 

 

 

 

 

 

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Cisco Systems ONS 15310-CL, ONS 15310-MA manual For any statically configured forwarding entries, To specific bridge groups

ONS 15310-CL, ONS 15310-MA, Cisco ONS 15310-MA specifications

Cisco Systems has long been a leader in networking and telecommunications technology, and among its impressive lineup of products, the Cisco ONS 15310 series stands out as an essential solution for optical networking. This series includes models such as the ONS 15310-MA, ONS 15310-CL, and ONS 15310-CA, each designed to meet the diverse needs of service providers and enterprises seeking to enhance their optical transport networks.

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