R3303-HP HSR6800 Routers Layer 3 - IP Routing Command Reference

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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.
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
Related commands
• enable link-local-signaling
• enable out-of-band-resynchronization
• opaque-capability enable
graceful-restart help
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.
Syntax
graceful-restart help { acl-number | prefix prefix-list }
undo graceful-restart help
Default
The router can serve as a GR helper for any OSPF neighbor.
Views
OSPF view
Default command level
2: System level
Parameters
acl-number: Specifies an ACL by its number in the range of 2000 to 3999.
prefix-list: Specifies an IP prefix list by its name, a string of 1 to 19 characters.