Adding The Description Of A Bfd Session - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Context
The WTR time for a BFD session is used to prevent frequent master/slave switchovers caused
by BFD session flapping. If a BFD session changes from Down to Up, BFD reports the change
to an upper-layer application after the WTR time expires.
Perform the following steps on the router:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bfd bfd-name
The BFD session view is displayed.
Step 3 Run:
wtr wtr-value
The WTR is configured.
By default, the WTR is 0.
----End

5.11.4 Adding the Description of a BFD Session

Descriptions of BFD sessions help you distinguish between different BFD sessions.
Context
Perform the following procedure on the router:
Procedure
Step 1 Run:
system-view
Issue 02 (2014-09-30)
NOTE
l As a BFD session takes effect on a unidirectional path, the WTR time at both ends of the path must be
the same. If the WRT time on one end is different from that on the other end, applications on the two
ends detect different BFD status after the BFD status on one end changes.
l To modify a parameter after a BFD session has been created, run a corresponding command (such as
process-pst, process-interface-status,min-tx-interval, min-rx-interval, detect-multiplier, tos-exp
(BFD session view), wtr, or description). The modification takes effect immediately without the
commit command configured.
NOTE
The description command takes effect only on statically configured BFD sessions not on BFD sessions
that are dynamically configured or BFD sessions that are created by using automatically negotiated
discriminators.
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