OSPF area types

For previous post about LSA types in OSPF...Click here lsa-types-in-ospf

OSPF area types:

1. Backbone area (area 0)
2. Standard area
3. Stub area
4. Totally stubby area
5. Not-so-stubby area (NSSA)

Note: The concept of Areas is to compress the LSA’s. so as to reduce the Traffic in Network.

     Let's begin by examining a standard area. Note that the backbone area is essentially a standard area which has been designated as the central point to which all other areas connect, so a discussion of standard area behavior largely applies to the backbone area as well.

Standard Areas: