Understanding Chassis Cluster Formation

To form a chassis cluster, a pair of the same kind of supported J-series devices or SRX-series devices combines to act as a single system that enforces the same overall security. For J-series chassis clusters, although the devices must be the same kind, they can contain different Physical Interface Modules (PIMs). For SRX-series chassis clusters, components including interfaces and processing units must match on the two boxes. When a device joins a cluster, it becomes a node of that cluster. With the exception of unique node settings and management IP addresses, nodes in a cluster share the same configuration.

You can deploy up to 15 chassis clusters in a Layer 2 domain. Clusters and nodes are identified in the following way:

• A cluster is identified by a cluster ID (cluster-id) specified as a number from 1 through 15.
• A cluster node is identified by a node ID (node) specified as a number from 0 to 1.

Related Topics

• Understanding Redundancy Groups
• Understanding Redundant Ethernet Interfaces
• Understanding the Control Plane
• Understanding the Data Plane
• Setting the Node ID and Cluster ID
• Configuring a Chassis Cluster and Redundancy Groups—Quick Configuration
• What Happens When You Enable Chassis Cluster
• Understanding Failover

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