Users Guide
The following is a list of the Dell Networking OS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
Usage Information To prevent loops, the neighbor ebgp-multihop command does not install default routes of the
multihop peer. Networks not directly connected are not considered valid for best path selection.
neighbor fall-over
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 Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation species successive hexadecimal elds of zeros.
peer-group-name Enter the name of the peer group.
Defaults Disabled.
Command Modes ROUTER BGP
Command History
This guide is platform-specic. 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 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
Usage Information When you enable fall-over, BGP keeps track of IP or IPv6 reachability to the peer remote address and the
peer local address. Whenever either address becomes unreachable (for examle, 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 – displays IPv6 routing information exchanged by BGP neighbors.
IPv6 Border Gateway Protocol (IPv6 BGP)
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