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Configuration Guide - VPN

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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Configuring L2VPN Information Exchange Between the PE Devices

Configuring L2VPN Information Exchange Between the PE Devices

Context

To establish local connections, skip steps in this section.

On a network using Kompella VLL, two PE devices exchange VC labels to set up VC connections between them. The PE devices calculate the label values based on L2VPN information including label blocks and CE IDs. You need to configure MP-BGP to transmit L2VPN information including label blocks between the PE devices.

Procedure

  • Perform the following operations on the PE devices at both ends of a VC:
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      mpls l2vpn

      MPLS L2VPN is enabled and the MPLS L2VPN view is displayed.

    3. Run:

      quit

      Return to the system view.

    4. Run:

      bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    5. Run:

      peer ipv4-address as-number as-number

      A remote PE is specified as the peer.

    6. Run:

      peer ipv4-address connect-interface loopback interface-number

      An interface used to create the TCP connection is specified.

      The loopback interface address with 32-bit mask must be used to establish the MP-IBGP peer relationship between the PEs. This can avoid failures in finding correct routes for packets due to route aggregation. The route to the loopback interface is advertised to the peer PE through IGP on the MPLS backbone network.

    7. Configure the Kompella VLL signaling capability.

      Kompella VLL can use the BGP-L2VPN address family exclusively or share the address family with Kompella VPLS and BGP AD VPLS. If the local device needs to connect to a device running a version earlier than V200R003C00, follow Method 1. In all other scenarios, follow Method 2.

      • Method 1: Kompella VLL uses the address family exclusively.

        1. Run:

          l2vpn-family

          The BGP L2VPN address family view is displayed.

        2. Run:

          peer ipv4-address enable

          A peer is specified, and the function to exchange route information with the specified peer is enabled.

      • Method 2: The Kompella VLL, Kompella VPLS, and BGP AD VPLS share the address family.

        1. Run:

          l2vpn-ad-family

          The L2VPN AD address family view is displayed.

        2. Run:

          peer ipv4-address enable

          A peer is specified, and the function to exchange route information with the specified peer is enabled.

          After you specify a peer in the L2VPN-AD address family view, the BGP AD signaling capability is enabled by default.

        3. Run:

          signaling vpws
          or
          peer ip-address signaling vpws

          The Kompella VLL signaling capability is enabled.

        4. (Optional) Run:

          signaling vpls-ad disable
          or
          peer ip-address signaling vpls-ad disable

          The BGP AD signaling capability is disabled.

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Updated: 2019-04-18

Document ID: EDOC1000141944

Views: 70774

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