Dell POWEREDGE M1000E - Manual (Page 951)

Configuring OSPF and OSPFv3 951
Configuring an OSPF Not-So-Stubby Area
To configure the area as an OSPF not-so-stubby area (NSSA), click NSSA
Create. The pages refreshes, and displays additional fields that are specific to
the NSSA.
Figure 34-4. OSPF NSSA Configuration
Use the NSSA Delete button to remove the NSSA area.