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CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
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Configuring OSPFv3 BFD Parameters at Interface Level

Configuring OSPFv3 BFD Parameters at Interface Level

After enabling BFD for OSPFv3 on an interface, you need to configure BFD parameters on the interface.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run ospfv3 bfd { min-transmit-interval min-transmit-value | min-receive-interval min-receive-value | detect-multiplier detect-multiplier-value }* [ instance instance-id ]

    By default, BFD is not enabled at OSPFv3 interface level.

    OSPFv3 BFD parameters are configured at interface level.

    You can skip this step. The default interval at which BFD packets are transmitted and the default detection multiplier are recommended.

    The parameters are configured based on the network status and network reliability requirements. A short interval at which BFD packets are transmitted can be configured for a link that has a higher requirement for reliability. A long interval at which BFD packets are transmitted can be configured for a link that has a lower requirement for reliability.

    NOTE:
    • Actual interval at which BFD packets are transmitted on the local devices = Max { configured interval min-transmit-value at which BFD packets are transmitted, configured interval min-receive-value at which BFD packets are received on the peer device }
    • Actual interval at which BFD packets are received on the local devices = Max { configured interval min-transmit-value at which BFD packets are transmitted on the peer device, configured interval min-receive-value at which BFD packets are received on the local device }
    • Actual time for detecting BFD packets = Actual interval at which BFD packets are received on the local device x Configured detection multiplier detect-multiplier-value

    For example:

    • On the local device, the configured interval at which BFD packets are transmitted is 200 ms; the interval at which BFD packets are received is set to 300 ms; the detection multiplier is 4.
    • On the peer device, the configured interval at which BFD packets are transmitted is 100 ms; the interval at which BFD packets are received is 600 ms; the detection multiplier is 5.

    Then:

    • On the local device, the actual interval at which BFD packets are transmitted is 600 ms calculated by using the formula max {200 ms, 600 ms}; the interval at which BFD packets are received is 300 ms calculated by using the formula max {100 ms, 300 ms}; the detection period is 1500 ms calculated by multiplying 300 ms by 5.
    • On the peer device, the actual interval at which BFD packets are transmitted is 300 ms calculated by using the formula max {100 ms, 300 ms}, the actual interval at which BFD packets are received is 600 ms calculated by using the formula max {200 ms, 600 ms}, and the detection period is 2400 ms calculated by multiplying 600 ms by 4.

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Updated: 2019-08-12

Document ID: EDOC1100034072

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