HP 6125XLG - Configuring BFD for Ospfv3

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Nonstop routing (NSR) backs up OSPFv3 link state information from the active process to the standby
process. After an active/standby switchover, NSR can complete link state recovery and route
regeneration without tearing down adjacencies or impacting forwarding services.
NSR does not require the cooperation of neighboring devices to recover routing information, and it is
typically used more often than GR.
IMPORTANT:
A
device that has OSPFv3 NSR enabled cannot act as GR restarter.
To enable OSPFv3 NSR:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A
3. Enable OSPFv3 NSR.
non-stop-routing
By default, OSPFv3 NSR is
disabled.
Configuring BFD for OSPFv3
Bidirectional forwarding detection (BFD) provides a mechanism to quickly detect the connectivity of links
between OSPFv3 neighbors, improving the convergence speed of OSPFv3. For more information about
BFD, see High Availability Configuration Guide.
After discovering neighbors by sending hello packets, OSPFv3 notifies BFD of the neighbor addresses,
and BFD uses these addresses to establish sessions. Before a BFD session is established, it is in the down
state. In this state, BFD control packets are sent at an interval of no less than 1 second to reduce BFD
control packet traffic. After the BFD session is established, BFD control packets are sent at the negotiated
interval, thereby implementing fast fault detection.
To configure BFD for OSPFv3, you need to configure OSPFv3 first.
To configure BFD for OSPFv3:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A
3. Specify a router ID.
router-id router-id N/A
4. Quit the OSPFv3 view.
quit N/A
5. Enter interface view.
interface interface-type
interface-number
N/A
6. Enable an OSPFv3 process
on the interface.
ospfv3 process-id area area-id
[ instance instance-id ]
N/A
7. Enable BFD on the interface.
ospfv3 bfd enable [ instance
instance-id ]
By default, BFD on the interface is
disabled.