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Configuring Pseudowire Redundancy on the PE Router

You configure pseudowire redundancy on the PE router acting as the egress for the primary and standby pseudowires using the backup-neighbor statement.

To configure pseudowire redundancy on the PE router, include the backup-neighbor statement:




backup-neighbor {
community name;
psn-tunnel-endpoint address;
standby;
virtual-circuit-id number;
}

For a list of hierarchy levels at which you can include this statement, see the statement summary for this statement.

The backup-neighbor statement includes the following configuration options:

community—Specifies the community for the backup neighbor.
psn-tunnel-endpoint—Specifies the endpoint address for the packet switched network (PSN) tunnel on the remote PE router. The PSN tunnel endpoint address is the destination address for the LSP on the remote PE router.
standby—Configures the pseudowire to the specified backup neighbor as the standby. When you configure this statement, traffic flows over both the active and standby pseudowires to the CE device. The CE device drops the traffic from the standby pseudowire, unless the active pseudowire fails. If the active pseudowire fails, the CE device automatically switches to the standby pseudowire.
virtual-circuit-id—Uniquely identifies the primary and standby Layer 2 circuits. This option is configurable for Layer 2 circuits only.

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