85
Enabling compatibility with RFC 1583
RFC 1583 specifies a different method than RFC 2328 for selecting the optimal route to a destination in
another AS. When multiple routes are available to the ASBR, OSPF selects the optimal route by using the
following procedure:
1.
Selects the route with the highest preference:
{
If RFC 2328 is compatible with RFC 1583, all these routes have equal preference.
{
If RFC 2328 is not compatible with RFC 1583, the intra-area route in a non-backbone area is
preferred to reduce the burden of the backbone area. The inter-area route and intra-area route
in the backbone area have equal preference.
2.
Selects the route with the lower cost if two routes have equal preference.
3.
Selects the route with the larger originating area ID if two routes have equal cost.
To avoid routing loops, HP recommends setting identical RFC 1583-compatibility on all routers in a
routing domain.
To enable compatibility with RFC 1583:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPF view.
ospf
[
process-id
|
router-id
router-id
|
vpn-instance
vpn-instance-name
] *
N/A
3.
Enable compatibility
with RFC 1583.
rfc1583 compatible
By default, this feature is enabled.
Logging neighbor state changes
Perform this task to enable output of neighbor state change logs to the information center. The
information center processes the logs according to user-defined output rules (whether to output logs and
where to output). For more information about the information center, see
Network Management and
Monitoring Configuration Guide
.
To enable the logging of neighbor state changes:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPF view.
ospf
[
process-id
|
router-id
router-id
|
vpn-instance
vpn-instance-name
] *
N/A
3.
Enable the logging of
neighbor state changes.
log-peer-change
By default, this feature is
enabled.
Configuring OSPF network management
This task involves the following configurations:
•
Bind an OSPF process to MIB so that you can use network management software to manage the
specified OSPF process.
