bgp four-octet-as-support
Enable 4-byte support for the BGP process.
Z9500
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
Description
9.2(1.0)
Introduced on the Z9500.
8.2.1.0
Introduced on the E-Series ExaScale.
7.7.1.0
Introduced
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 will 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.
Z9500
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.
514
Border Gateway Protocol
