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NE40E V800R010C00 Configuration Guide - MPLS 01

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(Optional) Configuring the Message Window Function

(Optional) Configuring the Message Window Function

The message window function prevents RSVP message mis-sequence. RSVP message mis-sequence terminates RSVP authentication between neighboring nodes.

Context

The message window function prevents RSVP message mis-sequence.

If the window size is greater than 1, the local device stores several latest valid sequence numbers.

Procedure

  • Configuring the message window function in the interface view
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface-number

      The view of the interface on which the MPLS TE tunnel is established is displayed.

    3. Run:

      mpls rsvp-te authentication handshake

      The handshake function is enabled.

      NOTE:

      The task of Configuring an RSVP Authentication Mode must be complete before the RSVP handshake function is configured.The handshake can only take effect after it is configured on both ends of an RSVP authentication relationship.

    4. Run:

      mpls rsvp-te authentication window-size window-size

      The message window function is configured. The value is the number of valid sequence numbers of received RSVP messages that can be stored.

      If RSVP is enabled on an Eth-Trunk or IP-Trunkinterface, only one neighbor relationship is established on the trunk interface between RSVP neighbors. This means any trunk member interface receives RSVP messages in a random order, which results in message mis-sequence. An RSVP message window size is configured to address this problem. If the sliding window is too small, received RSVP messages with sequence numbers outside the window size are discarded, which terminates an RSVP neighbor relationship.

    5. Run:

      commit

      The configuration is committed.

  • Configuring the message window function in the MPLS RSVP-TE peer view
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      mpls

      The MPLS view is displayed.

    3. Run:

      mpls rsvp-te peer ip-address

      The MPLS RSVP-TE peer view is displayed.

      • If ip-address is set to an interface IP address of a neighbor, not the neighbor LSR ID, the message window size will only take effect on that interface of the neighbor.

      • If ip-address is set to a neighbor LSR ID, the message window size will take effect on all interfaces of the neighbor.

    4. Run:

      mpls rsvp-te authentication handshake

      The handshake function is enabled.

      NOTE:

      The task of Configuring an RSVP Authentication Mode must be complete before the RSVP handshake function is configured. The handshake can only take effect after it is configured on both ends of an RSVP authentication relationship.

    5. Run:

      mpls rsvp-te authentication window-size window-size

      The message window function is configured. The value is the number of valid sequence numbers of received RSVP messages that can be stored.

      If RSVP is enabled on an Eth-Trunk or IP-Trunkinterface, only one neighbor relationship is established on the trunk interface between RSVP neighbors. This means any trunk member interface receives RSVP messages in a random order, which results in message mis-sequence. An RSVP message window size is configured to address this problem. If the sliding window is too small, received RSVP messages with sequence numbers outside the window size are discarded, which terminates an RSVP neighbor relationship.

    6. Run:

      commit

      The configuration is committed.

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Updated: 2018-07-12

Document ID: EDOC1100028530

Views: 101522

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