H3C Technologies H3C SR8800 - Manual (Page 119)

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Configuring the IETF standard OSPF GR Helper
To configure the IETF standard OSPF GR Helper:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable OSPF and enter its
view.
ospf [ process-id | router-id
router-id | vpn-instance
vpn-instance-name ] *
N/A
3. Enable opaque LSA reception
and advertisement.
opaque-capability enable Not enabled by default.
4. Configure the neighbors for
which the router can serve as
a GR Helper.
graceful-restart help { acl-number
| prefix prefix-list }
Optional.
The router can server as a GR
Helper for any OSPF neighbor by
default.
Configuring the non IETF standard OSPF GR Helper
To configure the non IETF standard OSPF GR Helper:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable OSPF and enter its
view
ospf [ process-id | router-id
router-id | vpn-instance
vpn-instance-name ] *
N/A
3. Enable the link-local signaling
capability.
enable link-local-signaling Disabled by default.
4. Enable the out-of-band
re-synchronization capability. enable
out-of-band-resynchronization
Disabled by default.
5. Configure the neighbors for
which the router can serve as
a GR Helper.
graceful-restart help { acl-number
| prefix prefix-list }
Optional.
The router can server as a GR
Helper for any OSPF neighbor by
default.
Triggering OSPF Graceful Restart
Performing an active/standby switchover on a router will trigger OSPF Graceful Restart.
To trigger OSPF Graceful Restart:
Task Command Remarks
Trigger OSPF Graceful Restart.
reset ospf [ process-id ] process
graceful-restart
Available in user view
Configuring BFD for OSPF
OSPF supports the following BFD detection methods: