Research on the Technology of Peer-to-Peer Network Traffic Identification
Chunjiang Wu · ZTE communications · 2007
The Peer-to-Peer (P2P) network traffic identification technology includes Transport Layer Identification (TLI) and Deep Packet Inspection (DPI) methods. By analyzing packets of the transport layer and the traffic characteristic in the P2P system, TLI can identify whether or not the network data flow belongs to the P2P system. The DPI method adopts protocol analysis technology and reverting technology. It picks up data from the P2P application layer and analyzes the characteristics of the payload to judge if the network traffic belongs to P2P applications. Due to its accuracy, robustness and classifying ability, DPI is the main method used to identify P2P traffic. Adopting the advantages of TLI and DPI, a precise and efficient technology for P2P network traffic identification can be designed.