graceful-restart (Enabling Globally)
Syntax
graceful-restart {
disable;
helper-disable;
maximum-helper-recovery-time seconds;
maximum-helper-restart-time seconds;
notify-duration seconds;
recovery-time seconds;
restart-duration seconds;
stale-routes-time seconds;
}
Hierarchy Level
[edit logical-systems logical-system-name routing-options], [edit logical-systems logical-system-name routing-instances routing-instance-name routing-options], [edit routing-options], [edit routing-instances routing-instance-name routing-options]
Description
You configure the graceful restart routing option
globally to enable the feature, but not to enable graceful restart
for all routing protocols in a routing instance. To enable graceful
restart globally, include the graceful-restart statement under the [edit routing options] hierarchy level. This enables graceful
restart globally for all routing protocols. You can, optionally, modify
the global settings at the individual protocol level.
For VPNs, the
graceful-restartstatement allows a router whose VPN control plane is undergoing a restart to continue to forward traffic while recovering its state from neighboring routers.For BGP, if you configure graceful restart after a BGP session has been established, the BGP session restarts and the peers negotiate graceful restart capabilities.
LDP sessions flap when
graceful-restartconfigurations change.
Default
Graceful restart is disabled by default.
Options
The remaining statements are explained separately. See CLI Explorer.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.