Enabling ospf, Configuration prerequisites, Configuration guidelines – H3C Technologies H3C S12500-X Series Switches User Manual
Page 105: Enabling ospf on a network, Configuring ospf gr helper, Triggering ospf gr
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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