Juniper QFX3000-G QFabric, Deployment Manual, Page: 451 / 652

graceful-restart (Protocols BGP)
Supported Platforms ACX Series , EX Series , M120 , MX240 , PTX Series , QFabric System , QFX Series standalone
switches , SRX210, SRX240, SRX3400 , T1600, T640
Syntax graceful-restart {
disable;
restart-time seconds;
stale-routes-time seconds;
}
Hierarchy Level [edit logical-systems logical-system-name protocols bgp],
[edit logical-systems logical-system-name protocols bgp group group-name],
[edit logical-systems logical-system-name protocols bgp group group-name neighbor address],
[edit protocols bgp],
[edit protocols bgp group group-name],
[edit protocols bgp group group-name neighbor address]
Release Information Statement introduced before Junos OS Release 7.4.
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Statement introduced in Junos OS Release 12.1 for the QFX Series.
Description Enable graceful restart for BGP. Graceful restart allows a routing device undergoing a
restart to inform its adjacent neighbors and peers of its condition. Graceful restart is
disabled by default.
To configure the duration of the BGP graceful restart period, include the
restart-time
statement at the
[edit protocols bgp graceful-restart]
hierarchy level. To set the length
of time the router waits to receive messages from restarting neighbors before declaring
them down, include the
stale-routes-time statement at the [edit protocols bgp
graceful-restart] hierarchy level.
NOTE: If you configure graceful restart after a BGP session has been
established, the BGP session restarts and the peers negotiate graceful restart
capabilities.
Configure graceful restart globally at the [edit routing-options] or [edit routing-instances
instance-name routing-options] hierarchy level to enable the feature. You cannot enable
graceful restart for specific protocols unless graceful restart is also enabled globally. You
can, optionally, modify the global settings at the individual protocol level.
The remaining statements are explained separately.
Required Privilege
Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related
Documentation
Configuring Graceful Restart Options for BGP
•
•
Configuring Graceful Restart for QFabric Systems on page 401
425 Copyright © 2015, Juniper Networks, Inc.
Chapter 19: Configuration Statements