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Configuring Static Layer 2 Circuits

 

You can configure static Layer 2 circuit pseudowires. Static pseudowires are designed for networks that do not support LDP or do not have LDP enabled. You configure a static pseudowire by configuring static values for the in and out labels needed to enable a pseudowire connection. The ignore-mtu-mismatch, ignore-vlan-id, and ignore-encapsulation-mismatch statements are not relevant for static pseudowire configurations since the peer router cannot forward this information.

When you configure static pseudowires, you need to manually compare the encapsulation, TDM bit rate, and control word of the router with the remote peer router and ensure that they match, otherwise the static pseudowire might not work.

To configure static Layer 2 circuit pseudowires, include the static statement:

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

You can configure a static pseudowire as a standalone Layer 2 circuit or in conjunction with a redundant pseudowire. You configure the static pseudowire statement at the [edit protocols l2circuit neighbor address interface interface-name] hierarchy level. You configure the redundant pseudowire at the [edit protocols l2circuit neighbor address interface interface-name backup-neighbor neighbor] hierarchy level. If you configure a static pseudowire to a neighbor and also configure a redundant pseudowire, the redundant pseudowire must also be static.

You can enable the ability to ping a static pseudowire by configuring the send-oam statement. This functionality applies to the backup neighbor as well. Once you have configured this statement, you can ping the static pseudowire by issuing the ping mpls l2circuit command.

For information about how to configure redundant pseudowires, see Configuring Redundant Pseudowires for Layer 2 Circuits and VPLS.