Checking The Consistency Of Mac Address Tables - Cisco Nexus 7000 Series Configuration Manual

Configuring Layer 2 Switching
Command or Action
Step 2
mac address-table learning-mode conversational
vlan-range of CE-vlans
Example:
switch(config)# mac address-table learning-mode
conversational vlan1
Step 3
exit
Example:
switch(config)# exit
switch#
This example shows how to set the learning mode to conversational for the VLANs:
switch# config t
switch(config)# mac address-table learning-mode conversational vlan1
switch(config)# end
switch(config)# show mac address-table learning-mode

Checking the Consistency of MAC Address Tables

Beginning with Release 4.1(2). you can check the match between the MAC address table on the supervisor
and all the modules.
SUMMARY STEPS
1. show forwarding consistency l2 {module_number}
DETAILED STEPS
Command or Action
Step 1 show forwarding consistency l2 {module_number}
Example:
switch# show forwarding consistency l2 7
switch#
This example shows how to display discrepant, missing, and extra entries in the MAC address tables between
the supervisor and the specified module:
switch# show forwarding consistency l2 7
switch#
Purpose
Specifies the learning mode for the Layer 2 MAC
address table. The options are conversational learning
and nonconversational learning.
Exits global configuration mode.
Purpose
Displays the discrepant, missing, and extra MAC addresses
between the supervisor and the specified module.
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x
Checking the Consistency of MAC Address Tables
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