Method applied to traffic identification and control of P2P network based on mathematical modeling technology
A P2P flow and P2P network technology, applied in the field of data communication, can solve the problems of irregular communication protocols, no obvious central control unit, and indistinguishability, and achieve the effect of avoiding traffic confusion
Inactive Publication Date: 2012-05-30
OPZOON TECH
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Problems solved by technology
[0004] 1. There are many types of software, and the communication protocols used are not standardized and standard;
[0005] 2. Each host is both a server and a client. There is no obvious central control unit, and the traffic has the characteristics of a mesh connection, which is difficult to identify;
[0006] 3. The network evades the control of operators on P2P services, and generally adopts technologies such as encrypted transmission and frequent update of protocol features, resulting in difficulties in identification and control
However, this method cannot distinguish whether an IP address belongs to a device that provides servers for many users, or a user initiates a large number of P2P connections
Method used
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[0021] In order to avoid the disadvantages caused by the identification method described in the background technology, we have studied the general traffic model of P2P business, which has the following characteristics:
[0022] 1. The traffic downloaded by P2P software is different from the traffic downloaded by traditional file servers. P2P traffic will actively initiate data requests to at least one hundred terminals;
[0023] 2. In order to avoid firewall interception, P2P software generally does not use fixed ports, but dynamically negotiates ports;
[0024] 3. The terminals connected by P2P software are not necessarily active, so the communication completion rate is not guaranteed. On the one hand, some communication requests can be successful, but some of them will fail. Its connection rate is greater than the sessions generated by viruses and attacks, and less than normal network communication.
[0025] The P2P traffic in the network can be more accurately identified...
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The invention discloses a method applied to traffic identification and control of a P2P network based on mathematical modeling technology, in particular a method for identifying the network traffic and performing control based on a user behavior by performing mathematical modeling on the traffic. The method comprises the following steps: serially connecting a gateway or a bridge device with the network to analyze the network traffic; analyzing active session condition of each IP address; comprehensively analyzing the distribution condition of the IP address at the opposite end in active connection with IP, the TCP / UDP port distribution condition of the active session, the session state information, and the like for mathematical modeling; and judging the P2P downloading behavior of a user through the model matching. The network traffic of an application layer is identified based on the mathematical model matching which is independent of traditional protocol resolution and keyword matching-based methods; and the efficiency of the traffic identification and the processing capacity of a traffic control device are greatly improved.
Description
technical field [0001] The invention relates to traffic identification and control technology in the field of data communication, in particular to a method for identifying P2P traffic and controlling P2P traffic based on a traffic mathematical model matching method. Background technique [0002] At present, P2P has become the most widely used file transfer technology on the Internet. According to incomplete statistics, about 60% of the backbone network bandwidth of operators is the traffic generated by P2P software. A large number of P2P leads to network congestion and bandwidth waste, resulting in a decrease in the efficiency of the entire communication network. Therefore, how to identify and control P2P is a huge challenge currently. [0003] Software developed based on P2P technology has the following typical characteristics: [0004] 1. There are many types of software, and the communication protocols used are not standardized and standard; [0005] 2. Each host is bot...
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IPC IPC(8): H04L12/56H04L29/08H04L12/801
Inventor 付天福
Owner OPZOON TECH