In addition to the backbone (Area 0) and other non-backbone areas described and used in the examples in previous sections of this module, the OSPF specification also defines several “special” types of areas. The configuration of these areas is used primarily to reduce the size of the Link State Database on routers residing within those areas by preventing the injection of different types of LSAs (primarily Type 5 LSAs) into certain areas, which include the following:
- Not-so-stubby Areas
- Totally Not-so-stubby Areas
- Stub Areas
- Totally Stubby Areas The content below this message is for members only.