1-6z BGP: For details, refer to BGP Configuration and BGP Commands in the IP Routing Volume.z MPLS: For details, refer to MPLS Basics Configuration and MPLS Basics Commands in the MPLSVolume.z Track: For details, refer to Track Configuration and Track Commands in the High AvailabilityVolume.Protocols and Standardsz draft-ietf-bfd-base-05: Protocol Independent Bidirectional Forwarding Detectionz draft-ietf-bfd-v4v6-1hop-05: BFD for IPv4 and IPv6 (Single Hop)Configuring BFD Basic FunctionsThe BFD basic function configuration is the basis for configuring BFD for other protocols.Configuration PrerequisitesBefore configuring BFD detection modes, complete the following tasks:z Configure the network layer addresses of the interfaces so that adjacent nodes are reachable toeach other at the network layer;z Configure the routing protocols that support BFDConfiguration ProcedureFollow these steps to configure BFD basic functions:To do… Use the command… RemarksEnter system view system-view —Specify the mode forestablishing a BFD sessionbfd session init-mode { active| passive }Optionalactive by defaultEnter interface view interface interface-typeinterface-number —Configure the minimum intervalfor transmitting BFD controlpacketsbfd min-transmit-intervalvalueOptionalThe value defaults to 400.Configure the minimum intervalfor receiving BFD echo packetsbfdmin-echo-receive-intervalvalueOptionalThe value defaults to 400.Configure the minimum intervalfor receiving BFD controlpacketsbfd min-receive-intervalvalueOptionalThe value defaults to 400.Configure the maximumnumber of consecutive BFDpackets that the remote devicefails to receive from the localdevice before considering theBFD session downbfd detect-multiplier value Optional5 by default
