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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 Primary and Secondary PWs

Configuring Primary and Secondary PWs

Context

You can configure primary and secondary PWs for PW backup on a network. VLL FRR uses redundant networking to improve L2VPN reliability. When a PW or PE device fails, VLL FRR fast switches traffic to a backup link. VLL FRR is only supported by the Martini and Kompella modes.

Perform the following configurations on the PEs.

Procedure

  • Configure primary and secondary PWs for the Martini VLL.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      mpls l2vpn

      The MPLS L2VPN view is displayed.

    3. Run:

      quit

      Return to the system view.

    4. Run:

      interface interface-type interface-number

      The AC interface view is displayed.

      The PE devices to which the CE device is dual-homed must use a main interface as the AC interface.

      NOTE:

      To use an XGE interface, a GE interface, a 40GE interface, or an Eth-Trunk interface of the device as the AC interface of the PE, run the undo portswitch command to change a Layer 2 interface to a Layer 3 interface.

    5. Run:

      mpls l2vc { ip-address | pw-template pw-template-name } * vc-id [ tunnel-policy policy-name | group-id group-id | [ control-word | no-control-word ] | [ raw | tagged ] | mtu mtu-value ] *

      The primary PW is configured.

    6. (Optional) Run:

      mpls l2vc { ip-address | pw-template pw-template-name } * vc-id [ tunnel-policy policy-name | group-id group-id | [ control-word | no-control-word ] | [ raw | tagged ] | mtu mtu-value ] * secondary

      The secondary PW is configured.

      If a CE device is single-homed to a PE device, configure primary and secondary PWs. If a CE device is dual-homed to two PE devices, configure the primary PW on each PE device.

      Primary and secondary PWs must have different VC IDs.

  • Configure primary and secondary PWs for the Kompella VLL.
    1. Configuring L2VPN Information Exchange Between the PE Devices
    2. Configuring L2VPN Instances on PE Devices
    3. Run:

      ce ce-name id ce-id [ range ce-range ] [ default-offset ce-offset ]

      A CE is created and the MPLS-L2VPN-CE view is displayed.

    4. Run:

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

      A primary PW is created for the CE.

      NOTE:

      To use an XGE interface, a GE interface, a 40GE interface, or an Eth-Trunk interface of the device as the AC interface of the PE, run the undo portswitch command to change a Layer 2 interface to a Layer 3 interface.

    5. (Optional) Run:

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

      A secondary PW is created for the CE.

      If a CE device is single-homed to a PE device, configure primary and secondary PWs. If a CE device is dual-homed to two PE devices, configure the primary PW on each PE device.

      When configuring primary and secondary PWs, ensure that the primary and secondary PWs use the same interface on the PE device that is directly connected to the CE device as the AC interface.

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Updated: 2019-04-18

Document ID: EDOC1000141944

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