Configuring Ospfv3 Gr; Configuring Gr Restarter - HP 6125XLG Layer 3 - Ip Routing Configuration Manual

Configuring prefix suppression for an OSPFv3 process
Enabling prefix suppression for an OSPFv3 process does not suppress the prefixes of loopback interfaces
and passive interfaces.
To configure prefix suppression for an OSPFv3 process:
Step
1. Enter system view.
2. Enter OSPFv3 view.
3. Enable prefix suppression
for the OSPFv3 process.
Configuring prefix suppression for an interface
Step
1. Enter system view.
2. Enter interface view.
3. Enable prefix
suppression for the
interface.

Configuring OSPFv3 GR

GR ensures forwarding continuity when a routing protocol restarts or an active/standby switchover
occurs:
Two routers are required to complete a GR process. The following are router roles in a GR process.
GR restarter—Graceful restarting router. It must be Graceful Restart capable.
•
GR helper—The neighbor of the GR restarter. It helps the GR restarter to complete the GR process.
•
To prevent service interruption after a master/backup switchover, a GR restarter running OSPFv3 must
complete the following tasks:
Keep the GR restarter forwarding entries stable during reboot.
•
Establish all adjacencies and obtain complete topology information after reboot.
•
After the active/standby switchover, the GR restarter sends a Grace LSA to tell its neighbors that it
performs a GR. Upon receiving the Grace LSA, the neighbors with the GR helper capability enter the
helper mode (and are called "GR helpers"). Then, the GR restarter retrieves its adjacencies and LSDB
with the help of the GR helpers.

Configuring GR restarter

You can configure the GR restarter capability on a GR restarter.
To configure GR restarter:
Command
system-view
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
prefix-suppression
Command
system-view
interface interface-type interface-number
ospfv3 prefix-suppression [ disable ]
[ instance instance-id ]
365
Remarks
N/A
N/A
By default, prefix suppression is
disabled for an OSPFv3 process.
Remarks
N/A
N/A
By default, prefix suppression
is disabled on an interface.