3com MSR 20-20 참조 매뉴얼

C

HAPTER

 76: OSPF C

ONFIGURATION

 C

OMMANDS

OSPF area view

default-route-advertise: Usable on an NSSA ABR or an ASBR only. If it is 
configured on an NSSA ABR, the ABR generates a default route in a Type-7 LSA 
into the NSSA regardless of whether the default route is available. If it is 
configured on an ASBR, only a default route is available on the ASBR can it 
generates the default route in a Type-7 LSA into the attached area.

no-import-route: Usable only on an NSSA ABR that is also the ASBR of the OSPF 
routing domain to disable redistributing routes in Type7 LSAs into the NSSA area, 
making sure that routes can be redistributed correctly.

no-summary: Usable only on an NSSA ABR to advertise only a default route in a 
Type-3 summary LSA into the NSSA area. In this way, all the other summary LSAs 
are not advertised into the area. Such an area is known as an NSSA totally stub 
area.

Use the nssa command to configure the current area as an NSSA area.

Use the undo nssa command to restore the default.

By default, no NSSA area is configured.

All routers attached to an NSSA area must be configured with the nssa command 
in area view.

default-cost (OSPF area view).

# Configure area1 as an NSSA area.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] area 1

[Sysname-ospf-100-area-0.0.0.1] nssa 

OSPF view

None

Use the opaque-capability enable command to enable Opaque LSA 
advertisement and reception. With the command configured, the OSPF device can 
receive and advertise the Type 9, Type 10 and Type 11 opaque LSAs.