no bfd all-neighbors• Disable BFD sessions with all OSPF neighbors on an interface.INTERFACE modeip ospf bfd all-neighbors disableConfigure BFD for OSPFv3BFD for OSPFv3 provides support for IPV6.Configuring BFD for OSPFv3 is a two-step process:1. Enable BFD globally.2. Establish sessions with OSPFv3 neighbors.Related Configuration Tasks• Changing OSPFv3 Session Parameters• Disabling BFD for OSPFv3Establishing Sessions with OSPFv3 NeighborsYou can establish BFD sessions with all OSPFv3 neighbors at once or with all neighbors out of a specificinterface. Sessions are only established when the OSPFv3 adjacency is in the Full state.To establish BFD with all OSPFv3 neighbors or with OSPFv3 neighbors on a single interface, use thefollowing commands.• Establish sessions with all OSPFv3 neighbors.ROUTER-OSPFv3 modebfd all-neighbors• Establish sessions with OSPFv3 neighbors on a single interface.INTERFACE modeipv6 ospf bfd all-neighborsTo view the established sessions, use the show bfd neighbors command.Changing OSPFv3 Session ParametersConfigure BFD sessions with default intervals and a default role.The parameters that you can configure are: desired tx interval, required min rx interval,detection multiplier, and system role. Configure these parameters for all OSPFv3 sessions or allOSPFv3 sessions on a particular interface. If you change a parameter globally, the change affects allOSPFv3 neighbors sessions. If you change a parameter at the interface level, the change affects allOSPFv3 sessions on that interface.To change parameters for all OSPFv3 sessions or for OSPFv3 sessions on a single interface, use thefollowing commands.To view session parameters, use the show bfd neighbors detail command, as shown in theexample in Displaying BFD for BGP Information.• Change parameters for all OSPFv3 sessions.ROUTER-OSPFv3 modeBidirectional Forwarding Detection (BFD) 141
