3com 4210 PWR 9-Port 3CR17341-91-ME 用户手册

A cluster contains a group of switches. Through cluster management, you can 
manage multiple geographically dispersed in a centralized way.

Cluster management is implemented through 3Com group management protocol 
(Switch Clustering). Switch Clustering version 2 (Switch Clusteringv2) is used at 
present.

A switch in a cluster plays one of the following three roles:

■

Management device

■

Member device

■

Candidate device

A cluster comprises of a management device and multiple member devices. To 
manage the devices in a cluster, you need only to configure an external IP address 
for the management switch. Cluster management enables you to configure and 
manage remote devices in batches, reducing the workload of the network 
configuration. Normally, there is no need to configure external IP addresses for 
member devices.

Figure 99 illustrates a cluster implementation.