Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 699)

Multi-Service IronWare Switching Configuration Guide 669
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L2VPN support for L2 MCT clusters
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• For L2VPN, for both VLL and VPLS, Both MCT nodes will take the Active role for signaling
towards the remote PE’s.
When L2 Keep-alive vlan is configured, initial state will be same as if there is no keep-alive. Then
once Keep-alive probes are exchanged, only one of the client links will stay up.
Graceful restart support
Graceful switchover is handled for MCT/L2VPN by the following:
• Using the client-interfaces shutdown (cluster configuration) command.
• R1 sends graceful-upgrade-restart (MCT) message to R2 (where the MCT peer nodes is R1 and
R2 and R1 needs to be upgraded) and R1 disables all client interfaces locally.
• L2VPN task brings down all the PWs to standby state
• R2 (MCT peer node) performs the following actions:
• Process the graceful-upgrade-restart (MCT) message that is received via CCP. It will force
local L2VPN instances to be forcefully active (though it does not match local
configuration).
• Send back graceful-upgrade-done (MCT) message to R1 to indicate the completion.
• R1 receives the graceful-upgrade-done message from R2 and it generates a local syslog to
indicate the user to continue with the reload/restart operation. User now can proceed with
the upgrade.
• This can minimize the traffic loss in cases where user wants to perform graceful restart
operation on one of the MCT nodes.
Show commands
Use the show cluster command will display MCT cluster information.
Brocade#show cluster
Cluster clu 1
=============
Rbridge Id: 4, Session Vlan: 0
Cluster State: Deploy
Client Isolation Mode: Loose
Configured Member Vlan Range:
Active Member Vlan Range:
show cluster clu client c1
Cluster clu 1
=============
Rbridge Id: 4, Session Vlan: 0
Cluster State: Deploy
Client Isolation Mode: Loose
Configured Member Vlan Range:
Active Member Vlan Range:
Client Info:
------------
L2VPN Peer Info:
---------------
Peer IP: 5.5.5.5, Peer Rbridge Id: 5
KeepAlive Interval: 300 , Hold Time: 900
Node KeepAlive Interval: 2000 , Hold Time: 6000
l2vpn-revertible-timer 300
Peer State: CCP Up (Up Time: 0 days: 0 hr:15 min:18 sec)