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CLI-based Configuration Guide - VPN

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes VPN features on the device and provides configuration procedures and configuration examples.
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Configuring and Applying a Tunnel Policy

Configuring and Applying a Tunnel Policy

You also need to configure tunnel policies when VLL services need to be transmitted over TE tunnels or when VLL services need to be load balanced among multiple tunnels to fully use network resources.

Context

Layer 2 data on the VLL network is transmitted over tunnels. By default, LSP tunnels are used to transmit data, and each service is transmitted by only one LSP tunnel.

If the default tunnel configuration cannot meet VLL service requirements, apply tunnel policies to VLLs. You can configure either of the following types of tunnel policies:

  • Tunnel type prioritization policy: This policy can change the type of tunnels selected for VPN data transmission or select multiple tunnels for load balancing.
  • Tunnel binding policy: This policy can bind multiple TE tunnels to provide QoS guarantee for a VPN.
NOTE:

CCC VLL does not support tunnel policies.

Pre-configuration Tasks

Before configuring and applying a tunnel policy, complete the following task:

Creating a tunnel (an LSP, a GRE, or an MPLS TE tunnel) to transmit VLL services

For details on how to create an LSP tunnel , a GRE, and a TE tunnel, see MPLS LDP Configuration in the Huawei AR Series Access Routers Configuration Guide - MPLS, GRE Configuration and MPLS TE Configuration in the Huawei AR Series Access Routers Configuration Guide - MPLS.

Perform the following operations on the PE devices that need to use a tunnel policy:

Procedure

  1. Configure a tunnel policy.

    Use either of the following methods to configure a tunnel policy.

    Configure a tunnel type prioritization policy.

    By default, no tunnel policy is configured. LSP tunnels are used to transmit VLL data and each VLL service is transmitted over one LSP tunnel.

    1. Run system-view

      The system view is displayed.

    2. Run tunnel-policy policy-name

      A tunnel policy is created, and tunnel policy view is displayed.

    3. (Optional) Run description description-information

      The description of the tunnel policy is configured.

    4. Run tunnel select-seq { cr-lsp | gre | lsp } * load-balance-number load-balance-number

      The sequence in which each type of tunnel is selected and the number of tunnels participating in load balancing are set.

    Configure a tunnel binding policy.

    1. Run system-view

      The system view is displayed.

    2. Run interface tunnel interface-number

      The tunnel interface view of the MPLS TE tunnel is displayed.

    3. Run mpls te reserved-for-binding

      The binding capability of the TE tunnel is enabled.

    4. Run mpls te commit

      The MPLS TE configuration is committed for the configuration to take effect.

    5. Run quit

      Return to the system view.

    6. Run tunnel-policy policy-name

      A tunnel policy is created.

    7. (Optional) Run description description-information

      The description of the tunnel policy is configured.

    8. Run tunnel binding destination dest-ip-address te { tunnel interface-number } &<1-16> [ ignore-destination-check ] [ down-switch ]

      The TE tunnel is bound to a specified tunnel policy.

      NOTE:

      If down-switch is specified in the command, the system selects available tunnels in an order of LSP, CR-LSP, and GRE when the bound tunnels are unavailable.

  2. Apply the tunnel policy.

    • In Martini VLL Mode

      Perform the following operations on the AC interfaces of the PE devices:

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

        A Martini VLL connection is created and the tunnel policy is applied to the connection.

    • In SVC VLL Mode

      Perform the following operations on the AC interfaces of the PE devices:

      • Run mpls static-l2vc { { destination ip-address | pw-template pw-template-name vc-id } * | destination ip-address [ vc-id ] } transmit-vpn-label transmit-label-value receive-vpn-label receive-label-value tunnel-policy tnl-policy-name [ [ control-word | no-control-word ] | [ raw | tagged ] | secondary ] *

        An SVC VLL connection is created and the tunnel policy is applied to the connection.

Verifying the Configuration

After configuring a tunnel policy and applying it to a VLL, you can check information about the tunnel policy applied to the VLL and tunnels in the system.

  • Run the display tunnel-info { tunnel-id tunnel-id | all | statistics [ slots ] } command to check information about tunnels in the system.
  • Run the display interface tunnel interface-number command to check detailed information about a specified tunnel interface.
  • Run the display tunnel-policy [ tunnel-policy-name ] command to check information about the specified tunnel policy.
  • Run the display mpls static-l2vc [ vc-id | interface interface-type interface-number | state { down | up } ] command to check tunnel information about the SVC VLL.
  • Run the display mpls l2vc [ vc-id | interface interface-type interface-number | remote-info [ vc-id | verbose ] | state { down | up } ] command to check tunnel information about the Martini VLL.
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Updated: 2019-08-07

Document ID: EDOC1100033725

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