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identifier (VPLS Multihoming for FEC 129)


Hierarchy Level


Configure a Layer 2 VPN or VPLS multihoming identifier (MHID). An identifier needs to be configured for each multihomed site. Multihoming site identifiers are specific to a VPLS domain. They need not be unique on a provider edge (PE) router when multiple VPLS instances are present. The network layer reachability information (NLRI) advertisements sent to a CE device are identified as candidates for designated forwarder selection because the advertisements have the same multihoming identifier. Thus, you should assign the same identifier on all VPLS PE routers that are multihomed to the same customer site.


The route distinguisher must be unique among PE routers participating in a multihomed site, so that the RD:MHID combination is unique across multiple VPLS domains. For example, one PE router might have a route distinguisher of, and another PE router in the same site might have a route distinguisher of 192.0.2.:1. The first number can be, for example, the loopback interface address that identifies the PE router. The second number is the multihoming identifier.


In the VPLS documentation, the word router in terms such as PE router is used to refer to any device that provides routing functions.



Number that identifies the multihomed site.

  • Range: 1 through 65535

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 12.3.