Command Line Reference Guide

peer-group-name Enter the name of the peer group.
ttl (OPTIONAL) Enter the number of hops as the time to live (ttl) value.
The range is 1 to 255. The default is 255.
Defaults Disabled.
Command Modes ROUTER BGP
Command History
Version 9.0(1.3) Introduced on the S5000.
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.
S5000
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 specifies successive hexadecimal fields of
zeros.
peer-group-name Enter the name of the peer group.
Defaults Disabled.
Command Modes ROUTER BGP
Command History
Version 9.0(1.3) Introduced on the S5000
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.
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