Cisco Catalyst 3560-X Series, Software Configuration Manual

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1-3
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Clustering Switches
Understanding Switch Clusters
Cluster Command Switch Characteristics
A cluster command switch must meet these requirements:
• It is running a supported software release.
•
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.
Standby Cluster Command Switch Characteristics
A standby cluster command switch must meet these requirements:
• It is running a supported software release.
•
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.
Catalyst 3550 12.1(4)EA1 or later Member or command switch
Catalyst 2970 12.1(11)AX or later Member or command switch
Catalyst 2960 12.2(25)FX or later Member or command switch
Catalyst 2955 12.1(12c)EA1 or later Member or command switch
Catalyst 2950 12.0(5.2)WC(1) or later Member or command switch
Catalyst 2950 LRE 12.1(11)JY or later Member or command switch
Catalyst 2940 12.1(13)AY or later Member or command switch
Catalyst 3500 XL 12.0(5.1)XU or later Member or command switch
Catalyst 2900 XL (8-MB switches) 12.0(5.1)XU or later Member or command switch
Catalyst 2900 XL (4-MB switches) 11.2(8.5)SA6 (recommended) Member switch only
Catalyst 1900 and 2820 9.00(-A or -EN) or later Member switch only
Table 1-1 Switch Software and Cluster Capability (continued)
Switch Cisco IOS Release Cluster Capability