Alcatel-Lucent 6850-48 网络指南

Quick Steps for Configuring BFD

Configuring BFD

page 30-6

OmniSwitch AOS Release 6 Network Configuration Guide

To verify the global BFD configuration for the switch, use the 

command. For example:

-> show ip bfd-std

Version              : 1,

Status               : Enabled,

Transmit interval    : 500,

Receive interval     : 500,

Multiplier           : 5,

Echo status          : Enabled,

Echo interval        : 500,

Mode                 : ECHO-ONLY,

Protocols registered : OSPF,

See the “BFD Commands” chapter in the OmniSwitch CLI Reference Guide for information about the 
fields in this display.

BFD runs on top of Layer 3 protocol traffic that is forwarded between two systems. This implementation 
of BFD supports the following protocols:

• BGP

• OSPF

• VRRP Tracking

• Static routes

Once the BFD configuration is in place (see 

described in the following sections are used to configure BFD interaction with the supported Layer 3 
protocols.

1 Register OSPF with the BFD protocol using the 

command. For example:

-> ip ospf bfd-std status enable

2 Enable BFD on specific OSPF interfaces using the 

 command or on all OSPF 

interfaces using the 

 command. For example:

-> ip ospf bfd-std all-interfaces

-> ip ospf interface int1 bfd-std enable

3 Establish BFD sessions with all OSPF DR neighbors in full states only or with all neighbors greater 
than or equal to the “2-way” state using the

 ip ospf interface bfd-std drs-only

 command or the 

interface bfd-std all-nbrs 

command. For example:

-> ip ospf interface int1 bfd-std drs-only

-> ip ospf interface int1 bfd-std all-nbrs

1 Register BGP with the BFD protocol using the 

 command. For example:

-> ip bgp bfd-std status enable