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Configuration Guide - MPLS

S7700 and S9700 V200R011C10

This document describes MPLS configurations supported by the switch, including the principle and configuration procedures of static LSPs, MPLS LDP, MPLS TE, MPLS QoS, MPLS OAM, Seamless MPLS, and MPLS common features, and provides configuration examples.
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Configuring RSVP Timers

Configuring RSVP Timers


If an RSVP node does not receive any Refresh message within a specified period, it deletes the path or reservation state. You can set the interval for sending Path/Resv messages and retry count by setting RSVP timers to change the timeout interval. The default interval and retry count are recommended. The timeout interval is calculated using the following formula:

Timeout interval = (keep-multiplier-number + 0.5) x 1.5 x refresh-interval.

In the formula, keep-multiplier-number specifies the retry count allowed for RSVP Refresh messages; refresh-interval specifies the interval for sending RSVP Refresh messages.

Perform the following configurations on each node of the MPLS TE tunnel.


  1. Run system-view

    The system view is displayed.

  2. Run mpls

    The MPLS view is displayed.

  3. Run mpls rsvp-te timer refresh refresh-interval

    The interval for sending RSVP Refresh messages is set.

    By default, the interval for sending RSVP Refresh messages is 30 seconds.

    If the interval is modified, the modification takes effect after the timer expires.

    You are not advised to set a long interval or modify the interval frequently.

  4. Run mpls rsvp-te keep-multiplier keep-multiplier-number

    The retry count allowed for RSVP Refresh messages is configured.

    By default, the retry count allowed for RSVP Refresh messages is 3.

Updated: 2019-10-18

Document ID: EDOC1000178315

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