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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 fall-over
Enable or disable fast fall-over for BGP neighbors.
S4820T
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
This 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 Description
9.7(0.0) Introduced on the S6000–ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
7.4.1.0 Introduced
Usage
Information
When you enable failover, 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.
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Border Gateway Protocol