To create a new cluster for high availability (HA) in a fabric, use the cluster-create command.


Informational Note:  You may configure multiple clusters of switches within a single fabric. However, a switch can participate in only one cluster configuration. For example, switch-1 and switch-2 can participate in cluster-1, and switch-3 and switch-4 can participate in cluster-2, but switch-1 and switch-2 cannot participate in cluster-2 or any other cluster.

Syntax   cluster-create name name-string cluster-node-1 cluster-node-1cluster-node-2 cluster-node-2 [validate|no-validate]


Specify the name of the cluster.


Specify the name of the first switch in the cluster.


Specify the name of the second switch in the cluster.

Any of the following options:

validate |no-validate

Validate the inter-switch links and state of the switches in the cluster.

cluster-sync-timeout milliseconds

Specify the amount of time before a cluster times out during synchronization. Specify a time between 500 and 2000 ms.

cluster-sync-offline-count number

Specify the number of missed synchronizations before the cluster goes offline.

Defaults   None

Access   CLI


Version 1.2

Command introduced.

Version 2.1

The parameter, private-link, added.

Version 2.2

The parameter, private-link, deprecated.

Version 3.0.0

The parameters, cluster-sync-timeout and cluster-sync-offline-count added.

Usage   A cluster allows two switches to cooperate in high-availability (HA) deployments. The nodes that form the cluster must be members of the same fabric. Clusters are typically used in conjunction with a virtual link aggregation group (VLAG) that allows links physically connected to two separate switches appear as a single trunk to a third device. The third device can be a switch, server, or any Ethernet device.

Examples  To create a cluster named, cluster_eng, using an interswitch link or trunk between two cluster nodes, switch_a and switch_b, and is available to other network traffic, use the following command:

CLI network-admin@switch > cluster-create name cluster_eng cluster-node-1 switch_a cluster-node-2 validate

See Also