Reference Guide

Usage
Information
The bgp fast-external-failover command appears in the show config
command output.
bgp four-octet-as-support
Enable 4-byte support for the BGP process.
S5000
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
Version 9.0(1.3) Introduced on the S5000.
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 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 reflect the entered format.
For more information about using the 2- or 4-Byte format, refer to the Dell
Networking OS Configuration Guide.
bgp graceful-restart
Enable graceful restart on a BGP neighbor, a BGP node, or designate a local router to support graceful
restart as a receiver only.
S5000
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.
708
IPv6 Border Gateway Protocol (IPv6 BGP)