Reference Guide

bgp graceful-restart
To support graceful restart as a receiver only, enable graceful restart on a BGP neighbor, a BGP node, or designate a
local router.
S4820T
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 then the maximum number of
seconds to restart and bring-up all the peers. The range is from 1 to
3600 seconds. The default is 120 seconds.
stale-path-time
seconds
Enter the keyword stale-path-time then the maximum number
of seconds to wait before restarting a peer’s stale paths. The default
is
360 seconds.
role receiver-only Enter the keyword role receiver-only to designate the local
router to support graceful restart as a receiver only.
Defaults as above
Command Modes ROUTER BGP
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
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.
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