Configuring Graceful Restart Options For Ospf And Ospfv3; Configuring Graceful Restart - Juniper EX9200 Features Manual

Configuring Graceful Restart Options for OSPF and OSPFv3

Copyright © 2017, Juniper Networks, Inc.
}
To disable IS-IS graceful restart helper capability, include the
at the
[edit protocols isis graceful-restart]
capability, include the
disable
hierarchy level.
NOTE: If you configure Bidirectional Forwarding Detection (BFD) and graceful
restart for IS-IS, graceful restart might not work as expected.
NOTE: Starting with Junos OS Release 12.3, if adjacencies between the
Routing Engine and the neighboring peer 'helper' routers time out, graceful
restart protocol extensions are unable to notify the peer 'helper' routers about
the impending restart.Graceful restart can then stop and cause interruptions
in traffic.
To ensure that these adjacencies are kept, change the hold-time for IS-IS
protocols from the default of 27 seconds to a value higher than 40 seconds.
NOTE: You can also track graceful restart events with the
statement at the
see "Tracking Graceful Restart Events" on page
To configure the duration of the OSPF/OSPFv3 graceful restart period, include the
statement at the
restart-duration
level. To specify the length of time for which the router notifies helper routers that it has
completed graceful restart, include the
hierarchy level. Strict OSPF link-state advertisement (LSA) checking
graceful-restart]
results in the termination of graceful restart by a helping router. To disable strict LSA
checking, include the no-strict-lsa-checking
hierarchy level.
graceful-restart]
[edit]
protocols {
ospf | ospfv3{
graceful-restart {
disable;
helper-disable
no-strict-lsa-checking;
notify-duration seconds;
restart-duration seconds;
}
}
}
routing-options {
graceful-restart;
hierarchy level. To disable IS-IS graceful restart
statement at the
[edit protocols isis graceful-restart]
hierarchy level. For more information,
[edit protocols isis]
[edit protocols (ospf | ospf3) graceful-restart]
at the
notify-duration
statement at the
Chapter 12: Configuring Graceful Restart
helper-disable statement
traceoptions
82.
hierarchy
[edit protocols (ospf | ospf3)
[edit protocols (ospf | ospf3)
79