3com S7906E Guide De Référence

 

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2: System level 

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. 

Related commands: default-cost. 

# Configure Area 1 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 

2: System level 

None