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Configuring the Fabric

The fabric is the back-to-back data connection between the nodes in a cluster. Traffic on one node that needs to be processed on the other node or to exit through an interface on the other node passes over the fabric. Session state information also passes over the fabric.

Before You Begin

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In a J-series chassis cluster, you can configure any pair of Gigabit Ethernet interfaces to serve as the fabric between nodes. In an SRX-series chassis cluster, you can configure any pair of Gigabit Ethernet interfaces or any pair of 10-Gigabit interfaces to serve as the fabric between nodes. You cannot configure filters, policies, or services on the fabric interface. Fragmentation is not supported on the fabric link. The maximum transmission unit (MTU) size is 8,980 bytes. We recommend that no interface in the cluster exceed this MTU. Jumbo frame support on the member links is enabled by default.

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