Dell Networking S6000 System, Reference Manual

Page: 340 / 1510

Version 7.7.1.0 Introduced on the C-Series.
Usage
Information
The
bgp fast-external-fallover
command appears in the
show config
command output.
The fast external fallover configuration is applied only after you manually reset all
the existing BGP sessions. As a result, after you execute this command, you must
also manually execute the
clear ip bgp
command in order for the configuration
to take effect.
bgp four-octet-as-support
Enable 4-byte support for the BGP process.
S6000
Syntax
bgp four-octet-as-support
To disable fast external failover, use the
no bgp four-octet-as-support
command.
Defaults Disabled (supports 2–byte format)
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 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Usage
Information
Routers supporting 4-byte ASNs advertise that function in the OPEN message. The
behavior of a 4-byte router is slightly different depending on whether it is speaking
to a 2-byte router or a 4-byte router.
When creating Confederations, all the routers in the Confederation must be 4 byte
or 2 byte identified routers. You cannot mix them.
340
Border Gateway Protocol