OSPF On Demand Learning Cisco Course

[markjosepascua]

I am new in this group and would like to clarify some OSPF basics. I am studying the course ware that I purchased in Cisco for preparation on my upcoming CCNA exam and was confused about the part on Establishing Neighbor Relationship on Point-to-Point links. 

It was stated that in Point-to-point links neighboring routers became adjacent whenever they can communicate directly. But why is that sated in number 4 (next photo) that they must still decide to whether building adjacency or staying in the current state:

 

[Giuseppe Larosa · Accepted solution]

Hello @markjosepascua ,

the second slide refers to both p2p and broadcast networks.

In the second type of networks Two way state is the final state between DRother devices.

A router on a broadcast network type will build FULL adjacency only with DR and BDR.

I think this is explained in the next slides of your online course.

Hope to help

Giuseppe