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Configuration Guide - MPLS

S7700 and S9700 V200R013C00

This document describes the configurations of MPLS, including Static LSP, MPLS LDP, MPLS QoS, MPLS TE, MPLS OAM, Seamless MPLS.
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(Optional) Adjusting BGP BFD Parameters

(Optional) Adjusting BGP BFD Parameters

Context

Perform the following steps on the ingress of an E2E BGP tunnel:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bfd

    The BFD view is displayed.

  3. Run mpls ping interval interval

    The interval at which LSP ping packets are sent is set.

    The default interval is 60s.

  4. Run quit

    Return to the system view.

  5. Run mpls

    The MPLS view is displayed.

  6. Run mpls bgp bfd { min-tx-interval interval | min-rx-interval interval | detect-multiplier multiplier } *

    BGP BFD time parameters are set.

    By default, the minimum interval for sending and receiving BFD packets is 10 ms when the MPU is equipped with the ES0D00FSUA00 or the MPU is EH1D2SRUDC00/EH1D2SRUDC01; otherwise, the minimum interval for sending and receiving BFD packets is 1000 ms. The local detection multiplier is 3.

    Effective BFD time parameters are calculated using the following formulas:

    • Effective local interval at which BFD packets are sent = MAX { Locally configured minimum interval at which BFD packets are sent, Remotely configured minimum interval at which BFD packets are received }

    • Effective local interval at which BFD packets are received = MAX { Remotely configured minimum interval at which BFD packets are sent, Locally configured minimum interval at which BFD packets are received }

    • Local BFD detection period = Effective local interval at which BFD packets are received x Remotely configured BFD detection multiplier

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Updated: 2019-04-08

Document ID: EDOC1100065745

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