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To modify their pseudowires, the peer routers correct their MPLS forwarding tables

and set up new entries in their pseudowire tables.

VPLS Supported Features

The JUNOSe implementation of VPLS provides the following features:

■ Single-level VPLS hierarchy within a single autonomous system (AS) using MPLS

tunneling technology for the core

■ Support for the following types of network interfaces between the PE router and

the CE device:

■ Bridged Ethernet over ATM1483 subinterfaces

■ Fast Ethernet

■ Gigabit Ethernet

■ 10-Gigabit Ethernet

■ VLAN and S-VLAN subinterfaces over bridged Ethernet, Fast Ethernet, Gigabit

Ethernet, or 10-Gigabit Ethernet interfaces

■ Autodiscovery of VPLS instance members using MP-BGP

■ VPLS signaling using MP-BGP to set up and tear down the pseudowires that

constitute a VPLS instance

■ VPLS signaling using LDP and the PWid FEC element (FEC Type 128) to set up

and tear down the pseudowires that constitute a VPLS instance

■ Interworking of the VPLS instance and the VPN routing and forwarding instance

(VRF) using an external cable connection

■ Multihoming

■ Class of service (CoS)

■ Inter-AS option A, inter-AS option B, and inter-AS option C services

■ Minimal filtering and policing support

As with L2VPNs, VPLS does not support BGP multipaths.

VPLS Platform Considerations

VPLS is supported on all E Series routers.

Module Requirements

You can configure VPLS network interfaces on all E Series module combinations that

support transparent bridging. The VPLS virtual core interface can exist on all E Series

module combinations that support MPLS tunnels.

VPLS Supported Features ■ 585

Chapter 9: VPLS Overview

Juniper BGP - CONFIGURATION GUIDE V 11.1.X User Manual

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