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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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Binding a Service PW to an mPW

Binding a Service PW to an mPW

After service PWs are bound to an mPW, the service PW status is determined by the mPW status.


To accelerate PW fault detection, BFD is generally used. When a large number of service PWs originated from the same source and destined for the same device are available, a large number of BFD sessions are required, which consumes lots of resources. To reduce the consumption of public network link bandwidths and system resources, configure an mPW that has the same source and destination as the service PWs and bind the service PWs to the mPW. This configuration allows the service PWs to track the mPW status. Therefore, a BFD session can be configured only for the mPW to detect faults. The mPW then notifies all service PWs bound to it of the status. This allows the BFD session to also monitor the service PWs.


  1. Configure an mPW.
    1. Run interface loopack loopback-number

      A loopback interface is configured, and the loopback interface view is displayed.

    2. Run mpls l2vc [ instance-name instance-name] { ip-address | pw-template pw-template-name } * vc-id{ [ control-word | tunnel-policy policy-name ] * admin | admin [ control-word | tunnel-policy policy-name ] * | tunnel-policy policy-name admin control-word | control-word | admin tunnel-policy policy-name }

      An mPW is created.

  2. Bind the service PW to the mPW.
    1. Run interface interface-type interface-number

      The view of the interface on which the service PW resides is displayed.

    2. Run mpls l2vc [ secondary | bypass ] track admin-vc interface loopback interface-number

      The service PW is bound to the mPW.

  3. Run commit

    The configuration is committed.

Updated: 2019-01-14

Document ID: EDOC1100058925

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