Graceful-Restart Help - 3Com S7906E Command Reference Manual

Enable Opaque LSA advertisement and reception with the opaque-capability enable command
before enabling the IETF GR capability for OSPF.
Before enabling non-IETF GR capability for OSPF, enable OSPF LLS (link local signaling) with the
enable link-local-signaling command and OOB (out of band resynchronization) with the enable
out-of-band-resynchronization command.
If the keywords nonstandard and ietf are not specified when OSPF GR is enabled, nonstandard
is the default.
Related commands:
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 2000 to 3999.
prefix-list: Name of the specified IP prefix list, a string of 1 to 19 characters.
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.)
Use the undo graceful-restart help command to restore the default.
By default, the router can serve as a GR Helper for any OSPF neighbor.
enable link-local-signaling,
1-35
enable out-of-band-resynchronization,