Peer-to-peer network flow-rate identification method and device
A traffic identification and traffic technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as large amount of calculation, slow speed, and difficulty in finding P2P network traffic, so as to improve identification efficiency and accuracy, reduce The effect of system overhead
Inactive Publication Date: 2015-04-01
贵州启城通科技有限公司
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Problems solved by technology
The disadvantage of DPI technology is: every time the entire IP datagram needs to be unpacked for analysis at the protocol layer, the amount of calculation is relatively large and the speed is relatively slow
The disadvantages of this technology are: traffic pattern recognition needs to record the information of each flow, and the recognition result of traffic pattern is uncertain and is based on probability, so the accuracy of the method depends on the significance and degree of P2P network traffic characteristics. Heuristic rules have the ability to cover such characteristics, but it is very difficult to find common characteristics of P2P network traffic
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[0037] The basic idea of the technical scheme of the present invention is to measure the length of a certain number of data stream packets, divide the data stream packets into two types according to the set length threshold, and calculate the type ratio of the two types of packets, if the packet type ratio is greater than the set The upper limit of the type threshold interval, the data flow is considered to be P2P network traffic.
[0038] In the process of data transmission, the network device will receive the IP data stream, store the IP data stream in its own internal buffer, and process the packet data stream accordingly.
[0039] The method for identifying P2P network traffic provided by the embodiment of the present invention, such as figure 1 As shown, including the following steps:
[0040] Step 101: The IP data stream enters the internal buffer of the network device;
[0041] In this step, the IP data stream is grouped according to the Transmission Control Protocol / Internet...
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The invention discloses a peer-to-peer (P2P) network flow-rate identification method and a device. Length of data stream packets of a given quantity is measured, the data stream packets are divided into two types according to a set length threshold value, the typical proportion of the two types of packets is calculated, if the typical proportion of the packet is more than the upper limit of the typical threshold value interval, the data stream is deemed as a peer-to-peer network flow rate. By adopting the method and the device, through the typical proportion of the packet, the data stream can be rapidly and effectively classified so as to rapidly and effectively identify the P2P network flow rate, so the identification efficiency and accuracy can be improved, and the system expenditure caused by the flow-rate detection solution can be greatly reduced.
Description
Technical field [0001] The invention relates to network flow identification technology, in particular to a method and device for peer-to-peer (P2P, Peer-to-Peer) network flow identification. Background technique [0002] P2P network was first proposed by Steve Crocker in 1969. It is a distributed network. Participants of the network share part of the hardware resources they own, such as processing power, storage capacity, network connection capacity, printers, etc. These shared resources require Services and content provided by the network can be directly accessed by other peer nodes without going through intermediate entities. Participants in this network are not only resource-as-service and content providers (Server), but also resource acquirers (Client). Different from the traditional client / server (C / S) network: the status of each node in the network is equal, each node acts as a server, provides services for other nodes, and also enjoys the services provided by other nodes ...
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IPC IPC(8): H04L29/06H04L29/08H04L12/26
Inventor 董昊孙知信李志文
Owner 贵州启城通科技有限公司