Cisco Systems 2960 User Manual

A cluster command switch must meet these requirements:

It is running Cisco IOS Release 12.2(25)FX or later for a Catalyst 2960 switch, or Cisco IOS 
Release 12.2(53)SE or later for a Catalyst 2960-S switch.

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.

A standby cluster command switch must meet these requirements:

It is running Cisco IOS 12.2(25)FX or later for a Catalyst 2960 switch, or Cisco IOS Release 
12.2(53)SE or later for a Catalyst 2960-S switch.

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 2960-S

12.2(53)SE 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