Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 309
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
c e s
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
Defaults
as above
Command Modes
ROUTER-BGP
Usage
Information
This feature is advertised to BGP neighbors through a capability advertisement. In receiver
only mode, BGP saves the advertised routes of peers that support this capability when they
restart.
BGP graceful restart is active only when the neighbor becomes established. Otherwise it is
disabled. Graceful-restart applies to all neighbors with established adjacency.
Command
History
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced command
Introduced support on C-Series
restart-time seconds Enter the keyword restart-time followed by the maximum
number of seconds needed to restart and bring-up all the peers.
Range: 1 to 3600 seconds
Default: 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.
Default: 360 seconds.
role receiver-only
Enter the keyword role receiver-only to designate the local
router to support graceful restart as a receiver only.
Version 8.3.7.0 Introduced on S4810
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series