Nortel Networks WEB OS 212777 - Manual (Page 282)

Web OS 10.0 Application Guide
282 n Chapter 11: High Availability
212777-A, February 2002
Synchronizing Configurations
As noted above, each VRRP-capable switch is autonomous. Switches in a virtual router need
not be identically configured. As a result, configurations cannot be synchronized automatically.
For user convenience, it is possible to synchronize a configuration from one VRRP-capable
switch to another using the
/oper/slb/sync command. However, care must be taken
when using this command to avoid unexpected results. All server load balancing, port configu-
rations, filter configurations, and VRRP parameters can be synchronized using the
/oper/slb/synch command.
N OTE – Before you synchronize the configuration between two switches, a peer must be con-
figured on each switch. Switches being synchronized must use the same administrator pass-
word.
Configure the two switches as peers to each other. From Switch 1, configure Switch 2 as a peer
and specify its IP address as follows:
Similarly, from switch #2, configure switch # 1 as a peer and specify its IP address as follows:
Port specific parameters, such as what filters are applied and enabled on what ports, are part of
what is pushed by the
/oper/slb/synch command. Thus, if the /oper/slb/synch
command is used, it is highly recommended that the hardware configurations and network con-
nections of all switches in the virtual router be identical; that is, each switch should be the
same model, have the same line cards in the same slots (if modular) and have the same ports
connected to the same external network devices. Otherwise, unexpected results may occur
when the
/oper/slb/synch command attempts to configure a non-existent port or applies
an inappropriate configuration to a port.
>> Main # /cfg/slb/sync (Select the synchronization menu)
>> Config Synchronization # peer 1 (Select a peer)
>> Peer Switch 1 # addr < ip address > (Assign switch 2 IP address)
>> Peer Switch 1 # enable (Enable peer switch)
>> Main # /cfg/slb/sync (Select the synchronization menu)
>> Config Synchronization # peer 2 (Select a peer)
>> Peer Switch 2 # addr < ip address > (Assign switch 1 IP address)
>> Peer Switch 2 # enable (Enable peer switch)