Reference Guide

Border Gateway Protocol | 223
To disable fast external fallover, enter no bgp fast-external-fallover.
Defaults
Enabled.
Command Modes
ROUTER BGP
Usage
Information
The bgp fast-external-fallover command appears in the show config command output.
Command
History
bgp four-octet-as-support
s z
Enable 4-byte support for the BGP process.
Syntax
bgp four-octet-as-support
To disable fast external fallover, enter no bgp four-octet-as-support.
Defaults
Disabled (supports 2-Byte format)
Command Modes
ROUTER BGP
Usage
Information
Routers supporting 4-Byte ASNs advertise that function in the OPEN message. The behavior of a
4-Byte router will be 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 or 2 byte identified
routers. You cannot mix them.
Where the 2-Byte format is 1-65535, the 4-Byte format is 1-4294967295. Both formats are accepted,
and the advertisements will reflect the entered format.
For more information about using the 2 or 4-Byte format, refer to the FTOS Configuration Guide.
Command
History
bgp graceful-restart
s z
Enable graceful restart on a BGP neighbor, a BGP node, or designate a local router to support graceful
restart as a receiver only.
Syntax
bgp graceful-restart [restart-time seconds] [stale-path-time seconds] [role receiver-only]
To return to the default, enter the no bgp graceful-restart command.
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on the Z9000.
Version 7.8.1.0 Introduced support on S-Series
S6000
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on the Z9000.
Version 7.8.1.0 Introduced support on S-Series
S6000