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Configuration Guide - Reliability

S7700 and S9700 V200R011C10

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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Summary of BFD Configuration Tasks

Summary of BFD Configuration Tasks

The device supports the following BFD features: BFD session setup, BFD detection mode, single-hop and multi-hop BFD, static BFD with automatically negotiated discriminators, BFD Echo function, association, and dynamic change of BFD parameters.

Table 2-5 describes the BFD configuration tasks.

Table 2-5  BFD configuration tasks

Task

Description

Link

Configure single-hop BFD.

Single-hop BFD fast detects faults on the directly connected link.

Configuring Single-Hop BFD

Configure multi-hop BFD.

Multi-hop BFD fast detects faults on the indirectly connected link.

Configuring Multi-Hop BFD

Configure static BFD with automatically negotiated discriminators.

When the remote device uses dynamic BFD and the local device wants to communicate with the remote device and detect static routes, you can create a BFD session with automatically negotiated discriminators. This function is mainly used in scenarios where static routes are used to implement Layer 3 connectivity.

Configuring Static BFD with Automatically Negotiated Discriminators

Configure the BFD Echo function.

Among two directly connected devices, one device supports BFD, whereas the other device does not support BFD. he BFD Echo function is configured on the BFD-supporting device to quickly detect forwarding failures between the two devices.

Configuring the BFD Echo Function

Configure BFD association.

Association between BFD and other protocols improves upper-layer application performance and fast detects faults on links.

Configuring BFD Association

Adjust BFD parameters.

You can adjust BFD parameters so that the BFD session can fast detect faults on links.

Adjusting BFD Parameters

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Updated: 2019-10-18

N. documento: EDOC1000178318

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