H3C Technologies H3C S12500-X Series Switches - Manual (Page 105)

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Configuring OSPF GR helper
You can configure the IETF or non IETF OSPF GR helper.
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Configuring the IETF 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 capability. opaque-capability enable
By default, opaque LSA reception
and advertisement capability is
enabled.
4. (Optional.) Enable GR helper
capability. graceful-restart helper enable
[ planned-only ]
By default, GR helper capability is
enabled.
5. (Optional.) Enable strict LSA
checking for the GR helper. graceful-restart helper
strict-lsa-checking
By default, strict LSA checking for
the GR helper is disabled.
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Configuring the non-IETF 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
By default, the link-local signaling
capability is disabled.
4. Enable the out-of-band
re-synchronization capability. enable
out-of-band-resynchronization
By default, the out-of-band
re-synchronization capability is
disabled.
5. (Optional.) Enable GR helper. graceful-restart helper enable By default, GR helper is enabled.
6. (Optional.) Enable strict LSA
checking for the GR helper. graceful-restart helper
strict-lsa-checking By default, strict LSA checking for
the GR helper is disabled.
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Triggering OSPF GR
OSPF GR is triggered by an active/standby switchover or when the following command is executed.
To trigger OSPF GR, perform the following command in user view:
Task Command
Trigger OSPF GR. reset ospf [ process-id ] process graceful-restart