Alcatel-Lucent 6850-48 Network Guide

Configuring MAC Retention

Configuring MAC Retention

page 18-6

OmniSwitch AOS Release 6 Network Configuration Guide

This section describes how to use Alcatel-Lucent’s Command Line Interface (CLI) commands to 
configure MAC Retention.

MAC Retention is disabled on the switch by default. If necessary, use the 

 command 

to enable MAC retention. For example:

-> mac-retention status enable

To disable MAC Retention on the switch, enter the following:

-> mac-retention status disable

Note. When the administrative status of MAC retention is enabled, the stack performance is enhanced.

After a takeover, if the former primary switch does not return to the stack after the preset time interval has 
elapsed, MAC address duplication may occur. To alert the administrator of a possible MAC address 
duplication, the switch can be configured to generate an SNMP trap.

You can enable the switch to generate an SNMP trap by using the 

command as shown:

-> mac-retention dup-mac-trap enable

To disable SNMP trap generation, enter the following:

-> mac-retention dup-mac-trap disable

After multiple takeovers, the switch can be allowed to release the retained MAC address. This enables the 
stack to obtain a new stack address from the EEPROM of the current primary element.

To release the retained MAC address from a switch, use the 

 command as shown:

-> mac release

Note. A switch will not be allowed to release the MAC address derived from its EEPROM.

To view the MAC Retention status, use the 

 command as shown:

-> show mac-retention status