Configuring ospfv3 route redistribution, Tuning and optimizing ospfv3 networks, Tuning and optimizing ospfv3 – H3C Technologies H3C SecPath F1000-E User Manual
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Configuring OSPFv3 route redistribution
Follow these guidelines when you configure OSPFv3 route redistribution:
•
Executing the import-route or default-route-advertise command on a router makes it become an
ASBR.
•
You can only inject and advertise a default route using the default-route-advertise command.
•
Since OSPFv3 is a link state routing protocol, it cannot directly filter LSAs to be advertised. You need
to filter redistributed routes first. Only routes that are not filtered out can be advertised in LSAs into
the routing domain.
•
Using the filter-policy export command filters routes redistributed with the import-route command.
If the import-route command is not configured, executing the filter-policy export command does
not take effect.
To configure OSPFv3 route redistribution:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPFv3 view.
ospfv3 [ process-id ]
N/A
3.
Specify a default cost for
redistributed routes.
default cost value
Optional.
1 by default
4.
Redistribute routes from
another protocol, or another
OSPFv3 process.
import-route protocol [ process-id | allow-ibgp ]
[ cost value | route-policy route-policy-name |
type type ] *
Not configured by
default.
5.
Inject a default route
default-route-advertise [ always | cost value |
type type | route-policy route-policy-name ] *
Optional.
Not injected by
default.
6.
Filter redistributed routes
filter-policy { acl6-number | ipv6-prefix
ipv6-prefix-name } export [ ospfv3 process-id |
ripng process-id | bgp4+ | direct | isisv6 |
static ]
Optional.
Not configured by
default.
Tuning and optimizing OSPFv3 networks
This section describes configurations of OSPFv3 timers, interface DR priority, MTU check ignorance for
DD packets, and disabling interfaces from sending OSPFv3 packets.
OSPFv3 timers are as follows:
•
Packet timer—Specified to adjust topology convergence speed and network load
•
LSA delay timer—Specified especially for low-speed links
•
SPF timer—Specified to protect networks from being over-loaded due to frequent network changes.
For a broadcast network, you can configure DR priorities for interfaces to affect DR/BDR election.
After an interface is disabled from sending OSPFv3 packets, other routers cannot obtain any information
from the interface.