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NE40E V800R010C00 Configuration Guide - MPLS 01

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(Optional) Adjusting BGP BFD Parameters

(Optional) Adjusting BGP BFD Parameters

You can adjust BGP BFD parameters, including the minimum interval at which BGP BFD packets are sent, the minimum interval at which BGP BFD packets are received, and the BGP BFD detection multiplier.

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.

  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.

    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

    The egress has the fixed minimum interval at which BGP BFD packets are sent, the fixed minimum interval at which BGP BFD packets are received, and the detection multiplier of 3. You can only change the time parameters on the ingress so that the BFD time parameters can be updated on both the ingress and egress.

  7. Run:

    commit

    The configuration is committed.

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Updated: 2018-07-12

Document ID: EDOC1100028530

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