Question: Upon detecting an S1/S4-SGSN path failure, what action should the S4-SGSN take regarding MBMS bearer contexts associated with the peer's MBMS GW IP address?
Option 1: Immediately release all MBMS bearer context resources.
Option 2: Maintain the MBMS bearer contexts for a fixed, non-configurable duration.
Option 3: Maintain the MBMS bearer contexts during an operator configurable maximum path failure duration.
Option 4: Automatically redirect the MBMS bearer contexts to a different MBMS GW.
Explanation: This is the correct action, allowing for flexibility based on operator configuration while managing resources efficiently. Maintaining the contexts during this configurable duration enables potential recovery without immediate resource release or redirection, aligning with efficient network management principles.