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Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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Setting the Priority of BFD Packets

Setting the Priority of BFD Packets


You can change the priority of BFD packets to implement the following functions:

  • Detect whether packets with different priorities on a link can be forwarded.

  • Ensure that BFD packets with a higher priority are forwarded first.


  1. Run:


    The system view is displayed.

  2. Run:

    bfd session-name

    The BFD session view is displayed.

  3. Run:

    tos-exp tos-value

    The priority of BFD packets is set.

    By default, the priority of BFD packets is 7, representing the highest priority. The value 0 is the lowest priority.

Updated: 2019-08-21

Document ID: EDOC1000141941

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