bfd all-neighbors interval milliseconds min_rx milliseconds multiplier valuerole [active | passive]• Change parameters for OSPFv3 sessions on a single interface.INTERFACE modeipv6 ospf bfd all-neighbors interval milliseconds min_rx millisecondsmultiplier value role [active | passive]Disabling BFD for OSPFv3If you disable BFD globally, all sessions are torn down and sessions on the remote system are placed in aDown state.If you disable BFD on an interface, sessions on the interface are torn down and sessions on the remotesystem are placed in a Down state. Disabling BFD does not trigger a change in BFD clients; a final AdminDown packet is sent before the session is terminated.To disable BFD sessions, use the following commands.• Disable BFD sessions with all OSPFv3 neighbors.ROUTER-OSPFv3 modeno bfd all-neighbors• Disable BFD sessions with OSPFv3 neighbors on a single interface.INTERFACE modeipv6 ospf bfd all-neighbors disableConfigure BFD for IS-ISWhen using BFD with IS-IS, the IS-IS protocol registers with the BFD manager on the RPM. BFD sessionsare then established with all neighboring interfaces participating in IS-IS. If a neighboring interface fails,the BFD agent on the line card notifies the BFD manager, which in turn notifies the IS-IS protocol that alink state change occurred.Configuring BFD for IS-IS is a two-step process:1. Enable BFD globally.2. Establish sessions for all or particular IS-IS neighbors.Related Configuration Tasks• Changing IS-IS Session Parameters• Disabling BFD for IS-IS142 Bidirectional Forwarding Detection (BFD)
