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Configuration Guide - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Configuration Guide - VPN
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Configuring Primary and Secondary PWs

Configuring Primary and Secondary PWs

Configuring the primary and secondary PWs is essential to configuring VPWS FRR.

Procedure

  1. Enable MPLS L2VPN.
    1. Run system-view

      The system view is displayed.

    2. Run mpls l2vpn

      MPLS L2VPN is enabled.

    3. Run quit

      Return to the system view.

  2. Configure PEs to exchange VPWS information as BGP peers.
    1. Run bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    2. Run peer ip-address as-number as-number

      A BGP peer and its AS number are specified.

    3. Run peer ip-address connect-interface interface-type interface-number

      The source interface for sending BGP packets is specified.

    4. Run l2vpn-ad-family

      The L2VPN-AD address family view is displayed.

    5. (Optional) Run vpn-orf enable

      The ORF is enabled.

    6. Run peer ipv4-address enable

      The route exchange capability is enabled.

    7. Run signaling vpws or peer ip-address signaling vpws

      BGP VPWS is enabled.

    8. Run quit

      Return to the BGP view.

    9. Run quit

      Return to the system view.

  3. Configure a remote BGP VPWS connection.
    1. Run mpls l2vpn l2vpn-name [ encapsulation encapsulation-type ] [ control-word | no-control-word ]

      A BGP VPWS instance is created, and the MPLS-L2VPN instance view is displayed.

      If heterogeneous interworking is required, specify encapsulation-type as ip-interworking for successful PW establishment.

    2. Run route-distinguisher route-distinguisher

      An RD is configured for the L2VPN instance.

    3. (Optional) Run mtu mtu-value

      An MTU is configured for the L2VPN instance.

      The MTU size determines the maximum packet size allowed by a VPWS network. If the MTU exceeds the maximum packet size allowed by a VPWS network or an intermediate node (P), packet fragmentation or even drop will occur, affecting network transmission. The MTU is one of the VPWS negotiation parameters. If the MTUs of the same L2VPN instance on the endpoint PEs are different, the two PEs cannot exchange reachability information or establish a PW. An appropriate MTU must be set for an L2VPN instance based on the MTU of the interface bound to the L2VPN instance. Specifically, the MTU of an L2VPN instance must be smaller than or equal to the MTU of the interface bound to the L2VPN instance.

    4. (Optional) Run ignore-mtu-match

      The current device is configured not to perform the MTU match check.

      By default, an MTU match check is performed on the endpoint PEs.

      If the MTUs of the same L2VPN instance on the two endpoint PEs do not match, the VC cannot go Up. If some devices do not support the MTU match check, run the ignore-mtu-match command to disable this check.

    5. Run vpn-target vpn-target & <1-16> [ both | export-extcommunity | import-extcommunity ]

      VPN targets are configured.

    6. Run ce ce-name [ id ce-id [ range ce-range ] [ default-offset ce-offset ] ]

      A CE is created in the L2VPN instance.

    7. Run connection [ ce-offset ce-offset-id ] interface interface-type interface-number [ tunnel-policy tunnel-policy-name ] [ raw | tagged ]

      A primary BGP VPWS PW is configured.

    8. Run connection [ ce-offset ce-offset-id ] interface interface-type interface-number [ tunnel-policy tunnel-policy-name ] [ raw | tagged ] secondary

      A secondary BGP VPWS PW is configured.

  4. Run commit

    The configuration is committed.

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Updated: 2019-01-14

Document ID: EDOC1100058925

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