<Abstrcat>By using the "small world" model as the theoretical foundation in the light of users requirement and a shared organization layer and region of logic manage-unit, a new application layer multicast protocol model of RLP2P with multi-layer structure based on region was proposed, and its prototype system was implemented.

Quality of the data delivery path, robustness of the overlay and control overhead are three important metric that about the"goodness"defined to evaluate the quality of the application layer multicast protocol.

On the basic analysis of LIN bus communication mode and CAN/LIN network interface characteristics,this article,treating ChangAn SC6350 as the object,designs a simple,current and effective LIN application layer protocol adapting to the CAN/LIN mixed network is designed.

In light of the current network application practice in the provincial energy management system (EMS), each layer involved in the network communication is analyzed, with emphasis on the selection of the application layer protocol, which is most closely related to EMS.

The message format of the vehicle lamp and the application layer protocol are designed.

Firstly the controller area network (CAN) technologies of hardware and software, real-time ability, application-layer protocol are presented.

CANbus is one kind of Local Bus Technology and mainly used in Data Link Layer and Physical Layer,but the protocol of application layer must be added to realize the material function.

An reliable algorithm of constructing application layer multicast tree;

Research on multi-dimension features of application layer multicast protocols;

Analysis of the application layer multicast protocol for multi-layer architecture P2P networks based on region;