LTE: Difference between static and dynamic X2 connection between two eNodeBs ?

Question

What is exactly done during X2 reset procedure in LTE? Spec talks about deleting peer eNB context.
What eNB context gets deleted during "X2 Reset" procedure? Also what is "application level configuration" as mentioned in X2 spec 36.423?

Answer 1

Under Self-Organizing Network (SON), there is a feature known as automatic neighbor relation (ANR).
Using ANR, two eNodeBs makes X2 connection dynamically, they learn to each other dynamically.
If you don't have SON in place then you have to provide static configurations to each eNodeB so that both eNodeBs establishes X2 connection.