Question: In E-UTRAN, what is a prerequisite for SCTP initialization between an eNB and an MME, assuming the eNB can be in either pre-operational or operational state?
Option 1: Mutual authentication between the eNB and MME has been successfully completed.
Option 2: The eNB has already established a connection with the Serving Gateway (S-GW).
Option 3: An initial remote IP end point for each MME is provided to the eNB for SCTP initialization.
Option 4: The eNB and MME share a common pool of IP addresses for signaling.
Explanation: For SCTP initialization to occur between an eNodeB (eNB) and a Mobility Management Entity (MME) in E-UTRAN, having the initial remote IP endpoint for each MME is crucial. This prerequisite ensures the eNB knows where to initiate the SCTP connection, fundamental for further communication and session management between these network elements, regardless of the eNB's state.