Question: How is the relationship between messages carrying RAN Information Management (RIM) containers handled by the Serving GPRS Support Node (SGSN) during transmission between RAN nodes?
Option 1: The SGSN interprets and manages the sequence of request/response exchanges between RIM applications.
Option 2: Each message carrying a RIM container is routed and relayed independently by the SGSN, with any relation between messages being transparent to it.
Option 3: The SGSN only relays the first message in a sequence, assuming subsequent messages will follow the established route.
Option 4: RIM containers are aggregated by the SGSN before forwarding to ensure efficient use of network resources.
Explanation: This is correct because the Core Network (including the SGSN) does not interpret the RAN information within the RIM containers. Therefore, any relationship between messages is not recognized or managed by the SGSN; each message is handled as an independent entity for routing and relaying purposes, keeping the RAN information transparent to the Core Network.