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Usage guidelines
An external route is a route to a destination outside the OSPFv3 AS. External routes types are as follows:
•
A Type-1 external route has high reliability. Its cost is comparable with the cost of OSPFv3 internal
routes. The cost from an OSPFv3 router to a Type-1 external route’s destination equals the cost from
the router to the ASBR plus the cost from the ASBR to the external route’s destination.
•
A Type-2 external route has low credibility, so OSPFv3 considers the cost from the ASBR to a Type-2
external route is much bigger than the cost from the ASBR to an OSPFv3 internal router. The cost
from an internal router to a Type-2 external route’s destination equals the cost from the ASBR to the
Type-2 external route's destination.
The
import-route
command cannot redistribute default routes.
The
import-route bgp4+
command redistributes only EBGP routes. The
import-route bgp4+ allow-ibgp
command redistributes both EBGP and IBGP routes, and might cause routing loops. Therefore, use it with
caution.
Examples
# Configure OSPFv3 process 1 to redistribute routes from RIPng and specify the type as type 2 and cost
as 50.
<Sysname> system-view
[Sysname] ospfv3
[Sysname-ospfv3-1] import-route ripng 10 type 2 cost 50
# Configure OSPFv3 process 100 to redistribute the routes discovered by OSPFv3 process 160.
<Sysname> system-view
[Sysname] ospfv3 100
[Sysname-ospfv3-100] import-route ospfv3 160
Related commands
default-route-advertise
(OSPFv3 area view)
log-peer-change
Use
log-peer-change
to enable the logging of neighbor state changes.
Use
undo log-peer-change
to disable the logging of neighbor state changes.
Syntax
log-peer-change
undo log-peer-change
Default
The logging of neighbor state changes is enabled.
Views
OSPFv3 view
Predefined user roles
network-admin
