import-route (OSPFv3 view)
Use import-route to redistribute routes.
Use undo import-route to disable route redistribution.
Syntax
import-route protocol [ as-number ] [ process-id | all-processes | allow-ibgp ] [ allow-direct | cost cost-value | nssa-only | route-policy route-policy-name | tag tag | type type ] *
undo import-route protocol [ process-id | all-processes ]
Default
OSPFv3 route redistribution is disabled.
Views
OSPFv3 view
Predefined user roles
network-admin
Parameters
protocol: Redistributes routes from the specified routing protocol.
as-number: Redistributes routes from an AS specified by its number in the range of 1 to 4294967295. This argument applies only to the bgp4+ protocol. If you do not specify this argument, this command redistributes all IPv6 EBGP routes. As a best practice, specify an AS number to prevent the system from redistributing excessive IPv6 EBGP routes.
process-id: Specifies the process ID of a routing protocol, in the range of 1 to 65536. The default is 1. This argument takes effect only when the protocol argument is isisv6, ospfv3, or ripng.
all-processes: Redistributes routes from all the processes of the specified routing protocol. This keyword takes effect only when the protocol argument is ripng, ospfv3, or isisv6.
allow-ibgp: Redistributes IBGP routes. It is available only when the protocol argument is bgp4+.
allow-direct: Redistributes the networks of the local interfaces enabled with the specified routing protocol. If you do not specify this keyword, the networks of the local interfaces are not redistributed. If you specify both the allow-direct keyword and the route-policy route-policy-name option, make sure the if-match rule defined in the routing policy does not conflict with the allow-direct keyword. For example, if you specify the allow-direct keyword, do not configure the if-match route-type rule for the routing policy. Otherwise, the allow-direct keyword does not take effect.
cost cost-value: Specifies a cost for redistributed routes, in the range of 1 to 16777214. The default is 1.
nssa-only: Limits the route advertisement to the NSSA area by setting the P-bit of Type-7 LSAs to 0. If you do not specify this keyword, the P-bit of Type-7 LSAs is set to 1. If the router acts as both an ASBR and an ABR and FULL state neighbors exist in the backbone area, the P-bit of Type-7 LSAs originated by the router is set to 0. This keyword applies to NSSA routers.
route-policy route-policy-name: Specifies a routing policy to filter redistributed routes. The route-policy-name argument is a case-sensitive string of 1 to 63 characters.
tag tag: Specifies a tag for external LSAs, in the range of 0 to 4294967295. If you do not specify this option, the tag specified by the default tag command applies.
type type: Specifies the type for redistributed routes, 1 or 2. The default is 2.
Usage guidelines
An external route is a route to a destination outside the OSPFv3 AS. External routes include the following types:
Type-1 external routes—Have high credibility. The cost of Type-1 external routes is comparable with the cost of OSPFv3 internal routes. The cost of a Type-1 external route equals the cost from the router to the ASBR plus the cost from the ASBR to the external route's destination.
Type-2 external routes—Have low credibility. 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 of a Type-2 external route 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.
The import-route nssa-only command redistributes AS-external routes in Type-7 LSAs only into the NSSA area.
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 view)