Specifications

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Catalyst 2970 Switch Software Configuration Guide
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Chapter 5 Clustering Switches
Creating a Switch Cluster
• CC—Cluster command switch
You must enter a virtual IP address for the cluster standby group. This address must be in the same subnet
as the IP addresses of the switch. The group number must be unique within the IP subnet. It can be from
0 to 255, and the default is 0. The group name can have up to 31 characters.
The Standby Command Configuration window uses the default values for the preempt and name
commands that you have set by using the CLI. If you use this window to create the standby group, all
switches in the group have the preempt command enabled. You must also provide a name for the group.
Note The HSRP standby hold time interval should be greater than or equal to three times the hello time
interval. The default HSRP standby hold time interval is 10 seconds. The default HSRP standby hello
time interval is 3 seconds. For more information about the standby hold time and standby hello time
intervals, refer to the Cisco IOS Configuration Fundamentals Command Reference for Release 12.1.
Figure 5-10 Standby Command Configuration Window
stack10 (cisco WS-C3750-24TS, HC, ..
TRS (cisco WS-C37xx-24, HC, ...)
stack1 (cisco WS-3750-48, CC, 0)
G-M-C3550-24 (cisco WS-C3550-24, H
Active command switch.
Standby command
switch.
Must be a valid IP
address in the same
subnet as the active
command switch.
Once entered, this
information cannot be
changed.
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