Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 75)

spanning-tree shutdown
mac access-group test2 in
no shutdown
ATTENTION
Be sure to take the following precautions.
• Note that the copy default-config to startup-config command in logical chassis cluster mode
causes a cluster-wide reboot and returns the entire logical chassis cluster to the default
configuration. Therefore, use this command only if you want to purge all existing configuration in the
logical chassis cluster.
• Make sure that the backup files for global and local configurations are available in a proper SCP or
FTP location that can be easily retrieved in logical chassis cluster mode during restore. Do not save
the files in the local flash, because they may not be available on the principal node for replay of local
configurations.
Converting a fabric cluster to a logical chassis cluster
You can convert an existing fabric cluster to a logical chassis cluster using the default configuration file.
1. Be sure all nodes are running the same firmware version. Logical chassis cluster functionality is
supported in Network OS 4.0.0 and later.
2. Be sure all the nodes that you intend to transition from a fabric cluster to a logical chassis cluster are
online. Run either the show vcs or show vcs detail command to check the status of the nodes.
3. Log into one switch that you are converting from fabric cluster mode to logical chassis cluster mode.
4. In Privileged EXEC mode, enter the vcs logical-chassis enable command with desired options; for
example you can convert all RBridges with one command:
switch# vcs logical-chassis enable rbridge-id all default-config
NOTE
To convert a specific RBridge from fabric cluster mode to logical chassis mode, use the RBridge ID
value in place of the "all" option. You can also specify a range, such as "1,3,4-6". Refer to the
Network OS Command Reference for details.
The nodes automatically reboot in logical chassis cluster mode. Allow for some down time during the
mode transition.
5. Run either the show vcs or the show vcs detail command to check that all nodes are online and
now in logical chassis cluster (listed as "Distributed" in the command output) mode.
6. The show vcs command output can also be used to determine which node has been assigned as
the cluster principal node.
switch# show vcs
R-Bridge WWN Switch-MAC Status
___________________________________________________________________
1 > 11:22:33:44:55:66:77:81 AA:BB:CC::DD:EE:F1 Online
2 11:22:33:44:55:66:77:82 AA:BB:CC::DD:EE:F2 Online
3 11:22:33:44:55:66:77:83* AA:BB:CC::DD:EE:F3 Online
The RBridge ID with the arrow pointing to the WWN is the cluster principal. In this example, RBridge
ID 1 is the principal.
7. Log in to the principal cluster and make any desired global and local configuration changes. These
changes then are distributed automatically to all nodes in the logical chassis cluster.
Converting a fabric cluster to a logical chassis cluster
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