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Example: Configuring the Chassis Cluster Fabric

This example shows how to configure the chassis cluster 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.

Requirements

Before you begin, set the chassis cluster ID and chassis cluster node ID. See Example: Setting the Chassis Cluster Node ID and Cluster ID.

Overview

In most SRX Series devices in a 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. Interfaces on SRX210 devices are Fast Ethernet or Gigabit Ethernet (the paired interfaces must be of a similar type) and all interfaces on SRX100 devices are Fast Ethernet interfaces.

You cannot configure filters, policies, or services on the fabric interface. Fragmentation is not supported on the fabric link. The MTU size is 8980 bytes. We recommend that no interface in the cluster exceed this MTU size. Jumbo frame support on the member links is enabled by default.

This example illustrates how to configure the fabric link.

Only the same type of interfaces can be configured as fabric children, and you must configure an equal number of child links for fab0 and fab1.

Note: If you are connecting each of the fabric links through a switch, you must enable the jumbo frame feature on the corresponding switch ports. If both of the fabric links are connected through the same switch, the RTO-and-probes pair must be in one virtual LAN (VLAN) and the data pair must be in another VLAN. Here too, the jumbo frame feature must be enabled on the corresponding switch ports.

Configuration

CLI Quick Configuration

To quickly configure the chassis cluster fabric, copy the following commands and paste them into the CLI:

{primary:node0}[edit]set interfaces fab0 fabric-options member-interfaces ge-0/0/1 set interfaces fab1 fabric-options member-interfaces ge-7/0/1

Step-by-Step Procedure

To configure the chassis cluster fabric:

  1. Specify the fabric interfaces.
    {primary:node0}[edit]user@host# set interfaces fab0 fabric-options member-interfaces ge-0/0/1{primary:node0}[edit]user@host# set interfaces fab1 fabric-options member-interfaces ge-7/0/1

Results

From configuration mode, confirm your configuration by entering the show interfaces command. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.

For brevity, this show command output includes only the configuration that is relevant to this example. Any other configuration on the system has been replaced with ellipses (...).

{primary:node0}[edit]user@host# show interfaces...
fab0 {fabric-options {member-interfaces {ge-0/0/1;}}}fab1 {fabric-options {member-interfaces {ge-7/0/1;}}}

If you are done configuring the device, enter commit from configuration mode.

Verification

Verifying the Chassis Cluster Fabric

Purpose

Verify the chassis cluster fabric.

Action

From operational mode, enter the show interfaces terse | match fab command.

{primary:node0}
user@host> show interfaces terse | match fab
ge-0/0/1.0              up    up   aenet    --> fab0.0
ge-7/0/1.0              up    up   aenet    --> fab1.0
fab0                    up    up
fab0.0                  up    up   inet     30.17.0.200/24
fab1                    up    up
fab1.0                  up    up   inet     30.18.0.200/24

Published: 2015-02-27