This article explains how to identify the Chassis Cluster ID of an SRX chassis cluster when replacing a failed node (RMA scenario) and the cluster ID is unknown.

During replacement of an SRX chassis cluster node, the replacement device must be configured with the same Chassis Cluster ID as the existing cluster before it can successfully join.

The Chassis Cluster ID can be obtained from the healthy node that remains operational in the cluster.

Run the following command on the active or working cluster node: show chassis cluster status

Example:

{primary:node0}

user@host> show chassis cluster status

Monitor Failure codes:

  CS Cold Sync monitoring

  FL Fabric Connection monitoring

  ...

Cluster ID: 10

Node  Priority Status        Preempt Manual  Monitor-failures

node0 200   primary       no   no    None

node1 0    lost         n/a   n/a   n/a

In the output above, the cluster ID is displayed near the top of the command output: Cluster ID: 10