R0106-HP MSR Router Series Layer 3 - IP Routing Command Reference(V7)

537
nssa-only: Limits the route advertisement to the NSSA area by setting the P-bit of Type-7 LSAs to 0. By
default, 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 marking external LSAs, in the range of 0 to 4294967295. If this option is not
specified, no tag is contained in advertised LSAs by default.
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 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 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.
• A Type-2 external route has 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 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