Dell Force10 S25N-S50N FTOS Command Line Reference Guide FTOS 8.4.2.7 E-Series - Page 764

www.dell.com | support.dell.com Parameters ipv6-address peer-group-name ttl Enter the IPv6 address in the x:x:x:x::x format. The :: notation specifies successive hexadecimal fields of zeros. Enter the name of the peer group. (OPTIONAL) Enter the number of hops as the Time to Live (ttl) value. Range: 1 to 255. Default: 255 Defaults Disabled. Command Modes ROUTER BGP Command History Version 8.4.2.1 Version 8.2.1.0 Version 7.4.1.0 Introduced on C-Series and S4810. Introduced on E-Series ExaScale Introduced on E-Series TeraScale Usage To prevent loops, the neighbor ebgp-multihop command will not install default routes of the multihop Information peer. Networks not directly connected are not considered valid for best path selection. neighbor fall-over c e Enable or disable fast fall-over for BGP neighbors. Syntax neighbor {ipv6-address | peer-group-name} fall-over To disable, use the no neighbor {ipv6-address | peer-group-name} fall-over command. Parameters ipv6-address peer-group-name Enter the IPv6 address in the x:x:x:x::x format. The :: notation specifies successive hexadecimal fields of zeros. Enter the name of the peer group. Defaults Disabled Command Modes ROUTER BGP Command History Version 8.4.2.1 Version 8.2.1.0 Version 7.4.1.0 Introduced on C-Series and S4810. Introduced on E-Series ExaScale Introduced on E-Series TeraScale Usage Information When fall-over is enabled, BGP keeps track of IP or IPv6 reachability to the peer remote address and the peer local address. Whenever either address becomes unreachable (i.e, no active route exists in the routing table for peer IP or IPv6 destination/local address), BGP brings down the session with the peer. Related Commands show ip bgp ipv6 unicast neighbors Display IPv6 routing information exchanged by BGP neighbors. 764 | IPv6 Border Gateway Protocol (IPv6 BGP)