After connecting the two devices together, you configure a cluster ID and a node ID. A cluster ID identifies the cluster that the two nodes belong to. A node ID identifies a unique node within a cluster.
Before You Begin
The system uses node IDs and cluster IDs to apply the correct configuration for each node when you use the apply-group command described in Configuring Chassis Cluster Information . The node ID and cluster ID statements are written to the EPROM, and when the system is rebooted, they take effect.
You can deploy up to 15 clusters in a Layer 2 domain. Each cluster is defined by a cluster-id value within the range of 1 through 15. A device can belong to only one cluster at any given time. Nodes in a cluster are numbered 0 and 1.
This topic includes:
To set the node IDs and cluster IDs, connect to each device through the console port and enter the following operational commands, then reboot the system.
After you set the cluster ID and node ID for each node and the system reboots, the built-in interfaces are automatically renamed (see Table 112). Use the show chassis cluster status operational command to view node status.
user@host# show chassis cluster status
Cluster ID: 3 Node name Priority Status Preempt Manual failover Redundancy group: 0 , Failover count: 1 node0 254 secondary no no node1 2 primary no no Redundancy group: 1 , Failover count: 1 node0 101 Secondary no no node1 99 primary no no
When you complete the chassis cluster basic configuration, any subsequent configuration changes you make are automatically synchronized on both nodes.