HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 88

Configuring the non-IETF OSPF GR Helper, Triggering OSPF GR, Configuring BFD for OSPF

Page 88 highlights

Step 5. (Optional.) Enable strict LSA checking for the GR Helper. Command graceful-restart helper strict-lsa-checking Configuring the non-IETF OSPF GR Helper Step 1. Enter system view. Command system-view 2. Enable OSPF and enter its view. ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * 3. Enable the link-local signaling capability. enable link-local-signaling 4. Enable the out-of-band enable re-synchronization capability. out-of-band-resynchronization 5. (Optional.) Enable GR Helper. 6. (Optional.) Enable strict LSA checking for the GR Helper. graceful-restart helper enable graceful-restart helper strict-lsa-checking Remarks By default, strict LSA checking for the GR Helper is disabled. Remarks N/A N/A By default, the link-local signaling capability is disabled. By default, the out-of-band re-synchronization capability is disabled. By default, GR Helper is enabled. By default, strict LSA checking for the GR Helper is disabled. Triggering OSPF GR To trigger OSPF GR, perform the following command in user view: Task Trigger OSPF GR. Command reset ospf [ process-id ] process graceful-restart Configuring BFD for OSPF BFD provides a single mechanism to quickly detect and monitor the connectivity of links between OSPF neighbors, which improves the network convergence speed. For more information about BFD, see High Availability Configuration Guide. OSPF supports the following BFD detection modes: • Bidirectional control detection-Requires BFD configuration to be made on both OSPF routers on the link. • Single-hop echo detection-Requires BFD configuration to be made on one OSPF router on the link. Configuring bidirectional control detection Step 1. Enter system view. Command system-view Remarks N/A 77

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77
Step
Command
Remarks
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.
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.
Triggering OSPF GR
To trigger OSPF GR, perform the following command in user view:
Task
Command
Trigger OSPF GR.
reset ospf
[
process
-
id
]
process graceful-restart
Configuring BFD for OSPF
BFD provides a single mechanism to quickly detect and monitor the connectivity of links between OSPF
neighbors, which improves the network convergence speed. For more information about BFD, see
High
Availability Configuration Guide
.
OSPF supports the following BFD detection modes:
Bidirectional control detection
—Requires BFD configuration to be made on both OSPF routers on
the link.
Single-hop echo detection
—Requires BFD configuration to be made on one OSPF router on the link.
Configuring bidirectional control detection
Step
Command
Remarks
1.
Enter system view.
system-view
N/A