Reference Guide
bgp four-octet-as-support
Enable 4-byte support for the BGP process.
S5000
Syntax
bgp four-octet-as-support
To disable fast external fallover, 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 to 65535, the 4-byte format is 1 to 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, use the no bgp graceful-restart command.
Parameters
restart-time
seconds
Enter the keyword restart-time followed by the
maximum number of seconds needed to restart and bring-
up all the peers. The range is 1 to 3600 seconds. The default
is 120 seconds.
stale-path-time
seconds
Enter the keyword stale-path-time followed by the
maximum number of seconds to wait before restarting a
peer’s stale paths. The default is 360 seconds.
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Border Gateway Protocol IPv4 (BGPv4)










