Command Line Interface

4-56

4

Switch Cluster Commands

Switch Clustering is a method of grouping switches together to enable centralized
management through a single unit. Switches that support clustering can be grouped
together regardless of physical location or switch type, as long as they are
connected to the same local network.
Using Switch Clustering
• A switch cluster has a primary unit called the “Commander” which is used to
manage all other “Member” switches in the cluster. The management station uses
both Telnet and the web interface to communicate directly with the Commander
through its IP address, while the Commander manages Member switches using
the cluster’s “internal” IP addresses.
• Once a switch has been configured to be a cluster Commander, it automatically
discovers other cluster-enabled switches in the network. These “Candidate”
switches only become cluster Members when manually selected by the
administrator through the management station.
Note: Cluster Member switches can be managed either through a Telnet connection to
the Commander, or through a web management connection to the Commander.
When using a console connection, from the Commander CLI prompt, use the
rcommand (see page 4-59) to connect to the Member switch.

cluster

This command enables clustering on the switch. Use the no form to disable
clustering.
Syntax
[no] cluster
Default Setting
Enabled
Command Mode
Global Configuration
Table 4-19 Switch Cluster Commands
Command Function Mode Page
cluster Configures clustering on the switch GC 4-56
cluster commander Configures the switch as a cluster Commander GC 4-57
cluster ip-pool Sets the cluster IP address pool for Members GC 4-58
cluster member Sets Candidate switches as cluster members GC 4-58
rcommand Provides configuration access to Member switches GC 4-59
show cluster Displays the switch clustering status PE 4-59
show cluster members Displays current cluster Members PE 4-60
show cluster candidates Displays current cluster Candidates in the network PE 4-60