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S12700 V200R010C00 Configuration Guide - Reliability

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 WTR Time of a BFD Session

Setting the WTR Time of a BFD Session

Context

If a BFD session flaps, an active/standby switchover is frequently performed on the application associated with the BFD session. To prevent the problem, set the WTR time of the BFD session. When the BFD session changes from Down to Up, BFD reports the change to the upper layer application only after the WTR timer times out.

If the WTR time is set, set the same WTR time at both ends. Otherwise, when the BFD session status changes at one end, applications at both ends detect different BFD session statuses.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    bfd session-name

    The BFD session view is displayed.

  3. Run:

    wtr wtr-value

    The WTR time is set.

    By default, the WTR time is 0, indicating that the status change of a BFD session is reported immediately.

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Updated: 2019-08-21

Document ID: EDOC1000142090

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