Configuring Multi-Chassis Redundancy

When configuring multi-chassis redundancy, configuration must be performed on the two nodes that forms redundant-pair peer nodes. Each node points to its peer using the peer command.

When creating a multi-chassis LAG, the LAG must first be created under the config>lag lag-id context. Additionally, the LAG must be in access mode and LACP must be enabled (active or passive). Under the multi-chassis>peer>mc-lag context, the lag-id is the ID of the previously created LAG.

Use the following CLI syntax to configure multi-chassis redundancy features:

CLI Syntax:
config>redundancy
    multi-chassis
       peer ip-address
            authentication-key [authentication-key | hash-key] [hash | hash2]
           description description-string
           mc-lag
           hold-on-neighbor-failure multiplier
           keep-alive-interval interval
           lag lag-id lacp-key admin-key system-id system-id [remote-lag lag-id] system-priority system-priority
        no shutdown 
        source-address ip-address 
Example:
config>redundancy# 
config>redundancy# multi-chassis
config>redundancy>multi-chassis# peer 10.10.10.2 create
config>redundancy>multi-chassis>peer# description ‟Mc-Lag peer 10.10.10.2”
config>redundancy>multi-chassis>peer# mc-lag
config>redundancy>mc>peer>mc-lag# lag 1 lacp-key 32666 system-id 00:00:00:33:33:33 system-priority 32888
config>redundancy>mc>peer>mc-lag# no shutdown
config>redundancy>mc>peer>mc-lag# exit
config>redundancy>multi-chassis>peer# no shutdown
config>redundancy>multi-chassis>peer# exit
config>redundancy>multi-chassis# exit
config>redundancy#

The following displays the configuration:

A:7705:Dut-A>config>redundancy# info
----------------------------------------------
            multi-chassis
                peer 10.10.10.2 create
                   description "Mc-Lag peer 10.10.10.2"
                    mc-lag
                       lag 1 lacp-key 32666 system-id 00:00:00:33:33:33 system
priority 32888
                       no shutdown
                    exit
                    no shutdown
                exit
            exit
----------------------------------------------
A:7705:Dut-A>config>redundancy#