Command Line Reference Guide

Parameters
ip-address Enter the IP address of the neighbor in dotted decimal format.
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 the default
routes of the multihop peer. Networks not directly connected are not considered valid for best-
path selection.
neighbor fail-over
Enable or disable fast fail-over for BGP neighbors.
S5000
Syntax
neighbor {ipv4-address | peer-group-name} fall-over
To 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 decimal format.
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 fail-over, BGP keeps track of IP or IPv6 ability to reach the peer remote
address and the peer local address. Whenever either address becomes unreachable (for
example, no active route exists in the routing table for the peer IP or IPv6 destination/local
address), BGP brings down the session with the peer.
Related
Commands
show ip bgp neighbors – displays information on the BGP neighbors.
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