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VPLS Configuration Guidelines

Virtual private LAN service (VPLS) allows you to provide a point-to-multipoint LAN between a set of sites in a VPN.

To configure VPLS functionality, you must enable VPLS support on the provider edge (PE) router. You must also configure PE routers to distribute routing information to the other PE routers in the VPLS and configure the circuits between the PE routers and the customer edge (CE) routers.

Each VPLS is configured under a routing instance of type vpls. A vpls routing instance can transparently carry Ethernet traffic across the service provider's network. As with other routing instances, all logical interfaces belonging to a VPLS routing instance are listed under that instance.


For VPLS to function, the PE router must have a Tunnel Services PIC.

To configure VPLS, you include statements at the [edit routing-instances routing-instance-name] hierarchy level:

[edit]

routing-instances {

    routing-instance-name {

        description text;

        instance-type vpls;

        interface interface-name;

        route-distinguisher (as-number:id | ip-address:id);

        vrf-export [ policy-names ];

        vrf-import [ policy-names ];

        vrf-target target:target-id;

        protocols {

            vpls {

                site site-name {

                    site-identifier identifier;

                }

                site-range number;

                traceoptions {

                    file filename <replace> <size size> <files number> <nostamp>;

                    flag flag <flag-modifier> <disable>;

                }

            }

        }

    }

}

For VPLS, only some of the statements in the [edit routing-instances] hierarchy are valid. For the full hierarchy, see the JUNOS Internet Software Configuration Guide: Routing and Routing Protocols.

In addition to these statements, you must configure Multiprotocol Label Switching (MPLS) label-switched paths (LSPs) between the PE routers, internal border gateway protocol (IBGP) sessions between the PE routers, and an interior gateway protocol (IGP) on the PE and provider routers.

By default, VPLS is disabled.

Many configuration procedures for VPLS are identical to the procedures for Layer 2 VPNs and Layer 3 VPNs. These procedures are described in detail in Chapter 2, "VPN Configuration Guidelines" on page "VPN Configuration Guidelines" and include the following:

The following sections describe the procedures specific to configuring VPLS:

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