Chapter 4
Clustering Switches
Table 4-1
Switch
Catalyst 2900 XL (4-MB switches)
Catalyst 1900 and 2820
Cluster Command Switch Characteristics
A cluster command switch must meet these requirements:
•
•
•
•
•
Standby Cluster Command Switch Characteristics
A standby cluster command switch must meet these requirements:
•
•
•
•
•
•
•
Note
Candidate Switch and Cluster Member Switch Characteristics
Candidate switches are cluster-capable switches and switch stacks that have not yet been added to a
cluster. Cluster member switches are switches that have actually been added to a switch cluster.
Although not required, a candidate or cluster member switch can have its own IP address and password
(for related considerations, see the
page
OL-19808-01
Switch Software and Cluster Capability (continued)
It is running the Cisco IOS Release, as described in
It has an IP address.
It has Cisco Discovery Protocol (CDP) Version 2 enabled (the default).
It is not a command or cluster member switch of another cluster.
It is connected to the standby cluster command switches through the management VLAN and to the
cluster member switches through a common VLAN.
It is running the Cisco IOS Release, as described in
It has an IP address.
It has CDP Version 2 enabled.
It is connected to the command switch and to other standby command switches through its
management VLAN.
It is connected to all other cluster member switches (except the cluster command and standby
command switches) through a common VLAN.
It is redundantly connected to the cluster so that connectivity to cluster member switches is
maintained.
It is not a command or member switch of another cluster.
Standby cluster command switches must be the same type of switches as the cluster command
switch. See the switch configuration guide of other cluster-capable switches for their
requirements on standby cluster command switches.
4-10).
Cisco IOS Release
11.2(8.5)SA6 (recommended)
9.00(-A or -EN) or later
Table
Table
"IP Addresses" section on page 4-10
Catalyst 2360 Switch Software Configuration Guide
Understanding Switch Clusters
Cluster Capability
Member switch only
Member switch only
4-1.
4-1.
and
"Passwords" section on
4-3