Before You Start; Configuring The Association Between Bfd Status And Sub-Interface Status - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability

5.5.1 Before You Start

Before associating the BFD session status with the sub-interface status, familiarize yourself with
the usage scenario and complete pre-configuration task of configuring a single-hop BFD session
and data preparation.
Applicable Environment
If high reliability is required and sub-interfaces are configured with a large number of services,
only a BFD session needs to be configured on an interface not on each sub-interface. The BFD
session can be associated with the sub-interface status to allow the sub-interface's protocol status
to be synchronized with the interface's protocol status. This association improves service
reliability and saves BFD session resources.
Pre-configuration Tasks
Before associating BFD status and sub-interface status, complete the following tasks:
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Data Preparation
To configure the association between the BFD status and the sub-interface status, you need the
following data.
No.
1
5.5.2 Configuring the Association Between BFD Status and Sub-
Interface Status
After being associated with sub-interface status, the BFD session can affect the interface protocol
status after the BFD session status changes, which triggers fast route convergence.
Context
Perform the following procedure on the NE80E/40E that needs to rapidly detect the link fault:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Issue 02 (2014-09-30)
Enable BFD globally.
Set up the one-hop BFD session, which is bound to the main interface and uses the default
multicast address for detection.
Set up the BFD session and ensure that the BFD session is Up.
Data
Name of the BFD session
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