OSPF Areas and Hierarchy Flashcards
1
Q
What is the purpose of OSPF areas?
A
To reduce routing overhead and improve scalability
2
Q
What is Area 0 in OSPF?
A
The Backbone Area, which all other areas must connect to
3
Q
What is an ABR (Area Border Router)?
A
A router that connects different OSPF areas
4
Q
What is an ASBR (Autonomous System Boundary Router)?
A
A router that connects OSPF to external routing domains
5
Q
What is an OSPF stub area?
A
An area that does not accept external routes from ASBRs
6
Q
What are the types of OSPF stub areas?
A
Stub, Totally Stubby, Not-So-Stubby Area (NSSA), and Totally NSSA
