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Fat AP and Cloud AP V200R010C00 Command Reference

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The wtr command sets the WTR time of a BFD session.

The undo wtr command restores the default WTR time of a BFD session.

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


wtr wtr-value

undo wtr






Specifies the WTR time of a BFD session.

The value is an integer that ranges from 1 to 60, in minutes. The default value is 0.


BFD session view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When a BFD session flaps, the WTR time prevents frequent active/standby switchovers of the application associated with the BFD session.


  • If the WTR time is set, the system reports the BFD session Up event to the upper-layer application only after the WTR timer expires. Other status change events are reported immediately, which are not affected by the WTR time.

  • Both ends must use the same WTR time. Otherwise, when the session status changes at one end, applications at both ends detect different BFD session status.


# Set the WTR time of a BFD session to 10 minutes.

<Huawei> system-view
[Huawei] bfd atoc
[Huawei-bfd-session-atoc] wtr 10
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Updated: 2019-11-21

Document ID: EDOC1100064352

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