TX: 300ms, RX: 250ms, Multiplier: 3Role: ActiveDelete session on Down: FalseClient Registered: CLIUptime: 00:02:04Statistics:Number of packets received from neighbor: 376Number of packets sent to neighbor: 314Number of state changes: 2Number of messages from IFA about port state change: 0Number of messages communicated b/w Manager and Agent: 6Dell#Changing OSPF 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 OSPF sessions or all OSPF sessions on a particular interface. If you change aparameter globally, the change affects all OSPF neighbors sessions. If you change a parameter at the interface level, the change affects allOSPF sessions on that interface.To change parameters for all OSPF sessions or for OSPF sessions on a single interface, use the following commands.• Change parameters for OSPF sessions.ROUTER-OSPF modebfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active |passive]• Change parameters for all OSPF sessions on an interface.INTERFACE modeip ospf bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role[active | passive]To view session parameters, use the show bfd neighbors detail command.Disabling BFD for OSPFIf you disable BFD globally, all sessions are torn down and sessions on the remote system are placed in a Down state.If you disable BFD on an interface, sessions on the interface are torn down and sessions on the remote system are placed in a Down state.Disabling BFD does not trigger a change in BFD clients; a final Admin Down packet is sent before the session is terminated.To disable BFD sessions, use the following commands.• Disable BFD sessions with all OSPF neighbors.ROUTER-OSPF modeno 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:Bidirectional Forwarding Detection (BFD) 159
