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Related commands: enable link-local-signaling, enable out-of-band-resynchronization, and
opaque-capability enable.
Examples
# Enable IETF Graceful Restart for OSPF process 1.
<Sysname> system-view
[Sysname] ospf 1
[Sysname-ospf-1] opaque-capability enable
[Sysname-ospf-1] graceful-restart ietf
# Enable non-IETF Graceful Restart for OSPF process 1.
<Sysname> system-view
[Sysname] ospf 1
[Sysname-ospf-1] enable link-local-signaling
[Sysname-ospf-1] enable out-of-band-resynchronization
[Sysname-ospf-1] graceful-restart nonstandard
graceful-restart help
Syntax
graceful-restart help { acl-number | prefix prefix-list }
undo graceful-restart help
View
OSPF view
Default level
2: System level
Parameters
acl-number: Basic or advanced ACL number, in the range of 2000 to 3999.
prefix-list: Name of the specified IP prefix list, a string of 1 to 19 characters.
Description
Use graceful-restart help 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.)
Use undo graceful-restart help to restore the default.
By default, the router can serve as a GR Helper for any OSPF neighbor.
Examples
# Enable IETF standard GR 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] opaque-capability enable
[Sysname-ospf-1] graceful-restart help 2001
# Enable non IETF standard GR for OSPF process 1 and configure the router as a GR Helper for OSPF
neighbors defined in the ACL 2001.
<Sysname> system-view
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