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Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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Establishing MP-IBGP Peer Relationships Between PE Devices

Establishing MP-IBGP Peer Relationships Between PE Devices


Perform the following steps on the PE devices.


  1. Run system-view

    The system view is displayed.

  2. Run bgp { as-number-plain | as-number-dot }

    The BGP view is displayed.

  3. Run peer ipv4-address as-number as-number-plain

    The remote PE is configured as a BGP peer.

  4. Run peer ipv4-address connect-interface loopback interface-number

    An interface is specified for setting up a Transmission Control Protocol (TCP) connection with the BGP peer.


    A local PE device must use a loopback interface address with a 32-bit mask to set up an MP-IBGP peer relationship with the remote PE device. This ensures that VPN routes can be iterated to tunnels. The route to the local loopback interface is advertised to the remote PE using an IGP on the MPLS backbone network.

  5. Run ipv4-family vpnv4 [ unicast ]

    The BGP-VPNv4 address family view is displayed.

  6. Run peer ipv4-address enable

    The ability to exchange VPN IPv4 routes with the BGP peer is enabled.

  7. Run commit

    The configuration is committed.

Related Tasks

If a large number of PE devices on the backbone network need to establish MP-IBGP peer relationships to exchange VPN routes, configure a route reflector (RR) to reduce the number of MP-IBGP connections between PE devices. The PE devices only need to establish MP-IBGP peer relationships with the RR. For the detailed configuration, see Configuring Route Reflection to Optimize the VPN Backbone Layer.

Updated: 2019-04-03

Document ID: EDOC1100075353

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