3-21For more information about BFD, see BFD Configuration in the High Availability Configuration Guide.BFD for RIP provides two link detection modes:z Single-hop detection in BFD echo packet mode for a directly connected neighbor. In this mode, aBFD session is established only when the neighbor has route information to send.z Bidirectional detection in BFD control packet mode for an indirectly connected neighbor. In thismode, a BFD session is established only when both ends have routes to send and BFD is enabledon the receiving interface.Single-Hop Detection in BFD Echo Packet ModeFollow these steps to configure BFD for RIP (single-hop detection in BFD echo packet mode):To do… Use the command… RemarksEnter system view system-view —Configure the source IP address ofBFD echo packets bfd echo-source-ip ip-addressRequiredBy default, no source IP address isconfigured for BFD echo packets.Enter interface view interface interface-typeinterface-number —Enable BFD on the RIP interface rip bfd enableRequiredDisabled by default.Bidirectional Detection in BFD Control Packet ModeFollow these steps to configure BFD for RIP (bidirectional detection in BFD control packet mode):To do… Use the command… RemarksEnter system view system-view —Create a RIP process and enterRIP viewrip [ process-id ] [ vpn-instancevpn-instance-name ]RequiredBy default, RIP is disabled.Specify a RIP neighbor peer ip-addressRequiredBy default, RIP does not unicastupdates to any peer.Enter interface view interface interface-typeinterface-number —
