Juniper QFX3000-G QFabric, Deployment Manual, Page: 430 / 652

Configuring Graceful Restart Options for OSPF and OSPFv3
To configure the duration of the OSPF/OSPFv3 graceful restart period, include the
restart-duration statement at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy
level. To specify the length of time for which the router notifies helper routers that it has
completed graceful restart, include the
notify-duration at the [edit protocols (ospf | ospf3)
graceful-restart] hierarchy level. Strict OSPF link-state advertisement (LSA) checking
results in the termination of graceful restart by a helping router. To disable strict LSA
checking, include the
no-strict-lsa-checking statement at the [edit protocols (ospf | ospf3)
graceful-restart]
hierarchy level.
[edit]
protocols {
ospf | ospfv3{
graceful-restart {
disable;
helper-disable
no-strict-lsa-checking;
notify-duration seconds;
restart-duration seconds;
}
}
}
routing-options {
graceful-restart ;
}
To disable OSPF/OSPFv3 graceful restart, include the
disable
statement at the
[edit
protocols (ospf | ospf3) graceful-restart]
hierarchy level.
Starting with Release 11.3, the Junos OS supports both the standard (based on RFC 3623,
Graceful OSPF Restart ) and the restart signaling-based (as specified in RFC 4811, RFC
4812, and RFC 4813) helper modes for OSPF version 2 graceful restart configurations.
Both the standard and restart signaling-based helper modes are enabled by default. To
disable the helper mode for OSPF version 2 graceful restart configurations, include the
helper-disable <both | restart-signaling | standard> statement at the [edit protocols ospf
graceful-restart] hierarchy level. Note that the last committed statement always takes
precedence over the previous one.
[edit protocols ospf]
graceful-restart {
helper-disable <both | restart-signaling | standard>
}
To reenable the helper mode, delete the helper-disable statement from the configuration
by using the delete protocols ospf graceful-restarthelper-disable <restart-signaling |
standard | both> command. In this case also, the last executed command takes
precedence over the previous ones.
Copyright © 2015, Juniper Networks, Inc. 404
QFX3000-G QFabric System Deployment Guide