CLI Guide

To disable fast external fallover, use the no bgp four-octet-as-support
command.
Defaults Disabled (supports 2-Byte format)
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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 from 1 to 65535, the 4-Byte format is from 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.
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.
Parameters
neighbor ip-
address | peer-
group-name
Enter the keyword neighbor then one of the options:
• ip-address of the neighbor in IP address format of the
neighbor
• peer-group-name of the neighbor peer group
restart-time
seconds
Enter the keywords restart-time then the maximum
number of seconds needed to restart and bring up all peers.
The range is from 1 to 3600 seconds. The default is 120
seconds.
788
IPv6 Border Gateway Protocol (IPv6 BGP)