Networking methods and systems are provided for a transportation vehicle, e.g. an aircraft. One method includes registering with a switching device, multicast network addresses assigned to each of a plurality of regions of an aircraft, each region including a plurality of seat devices configured to store media files of a media library of an in-flight entertainment system, the media files assigned to one of a plurality of tiers. A range of the multicast network addresses are reserved for each tier and the multicast network addresses are distributed across different regions of the aircraft, based on where media files are intended to be stored. Based on registered multicast network addresses, the switching device selectively forwards specific media files associated with specific multicast network addresses for storage at one or more seat devices located within a region associated with the specific multicast network address.