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Figure 130: Topology for VPLS Configuration Example with LDP Signaling

PE 1

Default virtual router

PE 2

Default virtual router

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Topology Overview of VPLS with LDP Signaling on page 606

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Configuration on PE 1 (Local PE Router) on page 606

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Configuration on PE 2 (Remote PE Router) on page 607

Topology Overview of VPLS with LDP Signaling

Because the basic components of a VPLS network are the same regardless of whether

BGP signaling or LDP signaling is used, the sample topology shown for LDP signaling in

Figure 130 on page 606 is almost identical to the sample topology shown for BGP signaling

in Figure 129 on page 599. Figure 130 on page 606 includes two VPLS domains: VPLS A,

which connects CE 1 and CE 3, and VPLS B, which connects CE 2 and CE 4. The local PE

router, PE 1, and the remote PE router, PE 2, each participate in both the VPLS A domain

and the VPLS B domain, and have one VPLS instance associated with each domain

configured on each router.

Unlike a VPLS configuration with BGP signaling, a VPLS configuration with LDP signaling

requires that you configure a VPLS ID for each VPLS instance to uniquely identify each

VPLS domain. In the sample topology in Figure 130 on page 606, instance vplsA is assigned

VPLS ID 1, and instance vplsB is assigned VPLS ID 2 on both the local PE router and the

remote PE router. You must also configure a list of remote neighbor (peer) addresses to

which LDP can send or from which LDP can receive targeted hello messages. In the

sample topology, the remote neighbor configured for PE 1 is PE 2 with IP address 2.2.2.2,

and the remote neighbor configured for PE 2 is PE 1 with IP address 1.1.1.1.

The Ethernet and bridged Ethernet network interfaces, ATM core-facing interfaces, VPLS

virtual core interfaces, and MPLS LSPs play the same role in a VPLS topology with LDP

signaling as they do in a VPLS topology with BGP signaling. For more information about

these components, see “Topology Overview of VPLS with BGP Signaling” on page 599.

Configuration on PE 1 (Local PE Router)

Use the following commands on the local PE router (PE 1) to configure the VPLS topology

shown in Figure 130 on page 606.

JunosE 11.2.x BGP and MPLS Configuration Guide

Juniper JUNOSE 11.2.X BGP AND MPLS User Manual

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