The SRX Clustering Module (SCM) is a card thatyou can install in the services gateway toenable the dual control link feature for chassiscluster supported in Junos OS Release 10.2.
When deploying SRX3600’s in H/A cluster, theSRX cluster module utilize the redundantarchitecture design of the SRX3000 line toprovide full control link resiliency for missioncritical environments.
To form a chassis cluster, a pair of the same kindof supported SRX-series devices or J-seriesdevices are combined to act as a single systemthat enforces the same overall security. For SRX 5600 and SRX 5800 chassis clusters, the placement and type of Services Processing Cards (SPCs) must match in the two clusters. For SRX 3400 and SRX 3600 chassis clusters, the placement and type of SPCs, Input/output Cards (IOCs), and Network Processing Cards (NPCs) must match in the two devices.
For J-series chassis clusters, although thedevices must be the same kind, they cancontain different Physical Interface Modules(PIMs).When a device joins a cluster, it becomes anode of that cluster. With the exception ofunique node settings and management IPaddresses, nodes in a cluster share the sameconfiguration.
You can deploy up to 15 chassis clusters in aLayer 2 domain. Clusters and nodes areidentified in the following way:1. A cluster is identified by a cluster ID (cluster-id) specified as a number from 1 through 15.2. A cluster node is identified by a node ID (node) specified as a number from 0 to 1.
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