1135

Description Use the graceful-restart help command to configure for which OSPF neighbors the current router can serve as a GR Helper. (The neighbors are specified by the ACL or the IP prefix list.)

By default, the router can serve as a GR Helper for any OSPF neighbor.

Examples # Enable GR Help for OSPF process 1 and configure the router as a GR Helper for OSPF neighbors defined in the ACL 2001.

<Sysname> system-view [Sysname] ospf 1

[Sysname-ospf-1] graceful-restart help 2001

graceful-restart interval (OSPF view)

Syntax graceful-restart interval interval-value

undo graceful-restart interval

View OSPF view

Parameters interval-value: Specifies the Graceful Restart interval, in the range 40 to 1,800 seconds.

Description Use the graceful-restart interval command to configure the Graceful Restart interval.

Use the undo graceful-restart interval command to restore the default

Graceful Restart interval.

By default, the Graceful Restart interval is 120 seconds.

Note that the Graceful Restart interval of OSPF cannot be less than the maximum value of dead intervals on all OSPF interfaces; otherwise, the Graceful Restart of OSPF may fail.

Related commands: ospf timer dead.

Examples # Configure the Graceful Restart interval for OSPF process 1 as 100 seconds.

<Sysname> system-view [Sysname] ospf 1

[Sysname-ospf-1] graceful-restart interval 100

host-advertise

Syntax host-advertise ip-address cost

undo host-advertise ip-address

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3Com MSR 50, MSR 30 manual Graceful-restart interval Ospf view, Host-advertise, Related commands ospf timer dead, 1135