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mac-flush

Syntax

mac-flush [ explicit-mac-flush-message-options ];

Hierarchy Level

[edit logical-systems logical-system-name routing-instances routing-instance-name protocols vpls],[edit logical-systems logical-system-name routing-instances routing-instance-name protocols vpls mesh-group mesh-group-name],[edit routing-instances routing-instance-name protocols vpls],[edit routing-instances routing-instance-name protocols vpls mesh-group mesh-group-name]

Release Information

Statement introduced in JUNOS Release 10.0.

Description

Enable media access control (MAC) flush processing for the virtual private LAN service (VPLS) routing instance or for the mesh group under a VPLS routing instance. MAC flush processing removes MAC addresses from the MAC address database that have been learned dynamically. With the dynamically learned MAC addresses removed, MAC address convergence requires less time to complete.

For certain cases where MAC flush processing is not initiated by default, you can also specify explicit-mac-flush-message-options that additionally configure the router to send explicit MAC flush messages. To configure the router to send explicit MAC flush messages under specific conditions, include explicit-mac-flush-message-options with the statement.

Options

explicit-mac-flush-message-options—(Optional) You can specify one or more of the following explicit MAC flush message options:

  • any-interface—(Optional) Send a MAC flush message when any customer-facing attachment circuit interface goes down.
  • any-spoke—(Optional) Send a MAC FLUSH-FROM-ME flush message to all provider edge (PE) routers in the core when one of the spoke pseudowires between the multitenant unit switch and the other network-facing provider edge (NPE) router goes down, causing the multitenant unit switch to switch to this NPE router.

    Note: This option has a similar effect in a VPLS multihoming environment with multiple multitenant unit switches connected to NPE routers, where both multitenant unit switches have pseudowires that terminate in a mesh group with local-switching configured. If the any-spoke option is enabled, then both PE routers send MAC FLUSH-FROM-ME flush messages to all PEs in the core.

  • propagate—(Optional) Propagate MAC flush to the core.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.


Published: 2010-04-28

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