Adjusting Bfd Parameters - Huawei Quidway S6700 series Configuration Manual

Quidway S6700 Series Ethernet Switches
Configuration Guide - Reliability

5.6 Adjusting BFD Parameters

Adjusting BFD parameters enables a BFD session to check links on a network effectively and
quickly.
5.6.1 Establishing the Configuration Task
Before adjusting BFD parameters, familiarize yourself with the applicable environment and
complete pre-configuration task for a BFD session, and obtain data required for configuring the
BFD session.
Applicable Environment
After a BFD session is set up, the sending interval, the receiving interval, and the local detection
multiplier are adjusted on the basis of the network status and performance requirement.
The Wait to Recovery (WTR) time for a BFD session is set to prevent frequent master/slave
switchovers caused by BFD session flapping.
The description of a BFD session is added to describe a link monitored by a BFD session.
If none of the preceding parameters is set, the default configurations are used.
Pre-configuration Tasks
Before adjusting BFD parameters, you need to set up a BFD session.
Data Preparation
To adjust BFD parameters, you need the following data.
No
1
2
3
4
5.6.2 Adjusting the BFD Detection Time
Context
To reduce the usage of system resource, when detecting that the BFD session becomes Down,
the system sets the intervals for sending and receiving BFD packets at the local end to a random
value between 1000 and 3000 milliseconds. When the BFD session recovers, the intervals set
by the user are used.
Do as follows on the S6700.
Issue 01 (2011-07-15)
Data
BFD configuration name
Local intervals at which BFD packets are sent and received
Local BFD detection multiplier
Priority of BFD packets
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5 BFD Configuration
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