Question: What action should an eNodeB (eNB) take if a RESET message contains a UE-associated logical S1-connection list Information Element (IE) but lacks both MME UE S1AP ID IE and eNB UE S1AP ID IE for a specific UE-associated logical S1-connection Item IE?
Option 1: The eNB should send an error message to the MME indicating missing IEs.
Option 2: The eNB must terminate all ongoing sessions related to that UE.
Option 3: The eNB should attempt to retrieve the missing IDs from its database.
Option 4: The eNB shall ignore the UE-associated logical S1-connection Item IE but may return it empty in the RESET ACKNOWLEDGE message.
Explanation: This action is specified to maintain protocol integrity while allowing for a graceful response. Ignoring the incomplete item prevents potential errors, and returning it empty in the acknowledgement (if chosen) provides feedback on the outcome of the reset request, aligning with efficient network management practices in E-UTRAN environments.