neighbor fall-overEnable or disable fast fall-over for BGP neighbors.S4810Syntax neighbor {ipv4-address | peer-group-name} fall-overTo disable, use the no neighbor {ipv4-address | peer-group-name}fall-over command.Parameters ipv4-address Enter the IP address of the neighbor in dotted decimalformat.peer-group-nameEnter the name of the peer group.Defaults Disabled.CommandModesROUTER BGPCommandHistoryThis guide is platform-specific. For command information about other platforms,refer to the relevant Dell Networking OS Command Line Reference Guide.The following is a list of the Dell Networking OS version history for this command.Version 9.0.2.0 Introduced on the S6000.Version8.3.19.0Introduced on the S4820T.Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 7.8.1.0 Introduced on the S-Series.Version 7.7.1.0 Introduced on the C-Series.Version 7.4.1.0 IntroducedUsageInformationWhen you enable failover, BGP keeps track of IP or IPv6 ability to reach the peerremote address and the peer local address. Whenever either address becomesunreachable (for example, no active route exists in the routing table for the peer IPor IPv6 destination/local address), BGP brings down the session with the peer.RelatedCommandsshow ip bgp neighbors — displays information on the BGP neighbors.Border Gateway Protocol 421
