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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Chapter 5 Clustering Switches
Creating a Switch Cluster
LRE Profiles
A configuration conflict occurs if a switch cluster has LRE switches using both
private and public profiles. If one LRE switch in a cluster is assigned a public
profile, all LRE switches in that cluster must have that same public profile. Before
you add an LRE switch to a cluster, make sure that you assign it the same public
profile used by other LRE switches in the cluster.
A cluster can have a mix of LRE switches using different private profiles.
For more information about LRE port profiles, see the “Configuring the LRE
Ports” section on page 7-22.
Availability of Switch-Specific Features in Switch Clusters
When a switch has features specific to it and the switch is part of a switch cluster,
the CMS menu bars display the configuration options of those features. For
example, Device > LRE Profile appears in the Cluster Manager menu bar when at
least one Catalyst 2900 LRE XL switch is in the cluster. However, these options
are only available when the appropriate switch is selected from the Host Name
drop-down list.
Creating a Switch Cluster
You create a cluster by performing these tasks:
1. Cabling together switches running clustering software
2. Assigning basic information to one switch (the command switch)
3. Starting VSM to designate and enable a command switch
4. Starting Cluster Builder to add candidate and standby command switches to
the cluster
After the cluster is formed, you can access all switches in the cluster by entering
the IP address of the command switch into the browser Location field
(Netscape Communicator) or Address field (Microsoft Internet Explorer).
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