Configuring Prefix Prioritization; Configuring Ospf Pic; Configuring Ospf Gr - HP 6125XLG Layer 3 - Ip Routing Configuration Manual

Step
3. Enable prefix
suppression on the
interface.

Configuring prefix prioritization

This feature enables the device to install prefixes in descending priority order: critical, high, medium, and
low. The prefix priorities are assigned through routing policies. When a route is assigned multiple prefix
priorities, the route uses the highest priority.
By default, the 32-bit OSPF host routes have a medium priority and other routes a low priority.
To configure prefix prioritization:
Step
1. Enter system view.
2. Enter OSPF view.
3. Enable prefix
prioritization.

Configuring OSPF PIC

Prefix Independent Convergence (PIC) enables the device to speed up network convergence by ignoring
the number of prefixes.
When both OSPF PIC and OSPF FRR are configured, OSPF FRR takes effect.
OSPF PIC applies to only inter-area routes and external routes.
To configure OSPF PIC:
Step
1. Enter system view.
2. Enter OSPF view.
3. Enable PIC for
OSPF.

Configuring OSPF 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 have GR capability.
•
Command
ospf prefix-suppression [ disable ]
Command
system-view
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
prefix-priority route-policy route-policy-name
Command
system-view
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
pic [ additional-path-always ]
90
Remarks
By default, prefix suppression
is disabled on an interface.
Remarks
N/A
N/A
By default, prefix prioritization
is disabled.
Remarks
N/A
N/A
By default, OSPF PIC is
enabled.