Cisco Systems 3560 사용자 설명서

If a cluster standby group exists, it is connected to every standby cluster command switch through 
at least one common VLAN. The VLAN to each standby cluster command switch can be different.

It is connected to the cluster command switch through at least one common VLAN.

Catalyst 1900, Catalyst 2820, Catalyst 2900 XL, Catalyst 2950, and Catalyst 3500 XL 
candidate and cluster member switches must be connected through their management VLAN 
to the cluster command switch and standby cluster command switches. For complete 
information about these switches in a switch-cluster environment, refer to the software 
configuration guide for that specific switch.

 

 
This requirement does not apply if you have a Catalyst 2970, Catalyst 3550, Catalyst 3560, 
or Catalyst 3750 cluster command switch. Candidate and cluster member switches can 
connect through any VLAN in common with the cluster command switch.

Anticipating conflicts and compatibility issues is a high priority when you manage several switches 
through a cluster. This section describes these guidelines, requirements, and caveats that you should 
understand before you create the cluster:

Refer to the release notes for the list of Catalyst switches eligible for switch clustering, including which 
ones can be cluster command switches and which ones can only be cluster member switches, and for the 
required software versions and browser and Java plug-in configurations.

The cluster command switch uses Cisco Discovery Protocol (CDP) to discover cluster member switches, 
candidate switches, neighboring switch clusters, and edge devices across multiple VLANs and in star or 
cascaded topologies.

Do not disable CDP on the cluster command switch, on cluster members, or on any cluster-capable 
switches that you might want a cluster command switch to discover. For more information about CDP, 
see