Advertisement
Defaults
Command Modes
Command
History
Related
Commands
graceful-restart grace-period
e
t
Syntax
Parameters
Defaults
Command Modes
Command
History
Usage
Information
1068
|
Open Shortest Path First (OSPFv2 and OSPFv3)
metric-type type-value
route-map map-name
Disabled
ROUTER OSPFv3
Version 7.8.1.0
Added support for C-Series
Version 7.4.1.0
Introduced
redistribute
Enable OSPFv3 graceful restart globally by setting the grace period (in seconds) that an OSPFv3
router's neighbors will continue to advertise the router as adjacent during a graceful restart.
graceful-restart grace-period seconds
To disable OSPFv3 graceful restart, enter no graceful-restart grace-period.
seconds
OSPFv3 graceful restart is disabled and functions in a helper-only role.
ROUTER OSPFv3
Version 8.4.2.2
By default, OSPFv3 graceful restart is disabled and functions only in a helper role to help restarting
neighbor routers in their graceful restarts when it receives a Grace LSA.
To enable OSPFv3 graceful restart, you must enter the
configuration mode and then configure a grace period using the
command. The grace period is the length of time that OSPFv3 neighbors continue to advertise the
restarting router as though it is fully adjacent. When graceful restart is enabled (restarting role), an
OSPFv3 restarting expects its OSPFv3 neighbors to help when it restarts by not advertising the broken
link.
When you enable the helper-reject role on an interface with the
helper-reject
command, you reconfigure OSPFv3 graceful restart to function in a "restarting-only"
role. In a "restarting-only" role, OSPFv3 does not participate in the graceful restart of a neighbor.
(OPTIONAL) Enter the keyword
link state type of 1 or 2 for default routes. The values are:
1 = Type 1 external route
2 = Type 2 external route
Default: 2
(OPTIONAL) Enter the keyword
established route map.
Redistribute routes from other routing protocols into OSPFv3.
Time duration, in seconds, that specifies the duration of the restart process
before OSPFv3 terminates the process.
Range: 40 to 1800 seconds
Introduced on E-Series TeraScale.
ipv6 router ospf
metric-type
followed by the OSPFv3
route-map
followed by the name of an
command to enter OSPFv3
graceful-restart grace-period
ipv6 ospf graceful-restart
Advertisement
