Method for detecting data flow and device thereof
A technology of data flow and detection method, which is applied in the network field, can solve the problems of false positives, reduce the recognition rate of BT data, etc., and achieve the effect of improving the accurate recognition rate
Inactive Publication Date: 2012-07-25
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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Problems solved by technology
[0004] The inventor found in the process of implementing the present invention that the prior art has at least the following defects: if the BT data is encrypted, the characteristic string used to identify the BT protocol in the BT data disappears, so the BT traffic detection is performed according to the characteristic string There are serious underreporting phenomena, which reduces the recognition rate of BT data
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] figure 1 It is a schematic flow chart of an embodiment of the data traffic detection method of the present invention, such as figure 1 As shown, the embodiment of the present invention includes the following steps:
[0021] Step 101. Obtain first address information for representing client address information from the received data packet;
[0022] Step 102: If the first address information is the same as the cached second address information used to ...
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The embodiment of the invention relates to a method for detecting data flow and a device thereof. The method comprises: acquiring the first address information used for representing client address information from a received data packet; and counting the data packet as data flow of bit torrent (BT), if the first address information is identical to the second address information which is cached and used for representing the client address information capable of providing BT download service. In the method for detecting data flow and the device thereof provided by the embodiment of the invention, if the data packet is a data packet formed after encrypting, the first address information of the data packet can not be changed in the process of encrypting data packet, therefore, if the first address information carried by the received data packet, the data packet is counted as data flow of BT, thus enhancing precise identification rate of the encrypt data packet; if the data packet carryingthe first address information is received for the first time, initial packet can be identified according to the first address information.
Description
technical field [0001] The embodiment of the present invention relates to the field of network technologies, in particular to a data flow detection method and device. Background technique [0002] In the traditional file download method, multiple clients download files from the server respectively, and only the server provides the download service, and the client does not provide the download service. The peer-to-peer (Peer to Peer, P2P) download method based on the BitTorrent (BitTorrent, abbreviation: BT) protocol is that the client not only downloads files but also provides download services, while the server only provides directories about the client and downloaded files. information, and the client has a certain hash feature when downloading the file, therefore, there are file contents that other clients have not yet downloaded in the multiple clients participating in the downloading file, thereby being able to provide download services for other clients. In this file ...
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IPC IPC(8): H04L12/56H04L29/08H04L12/26
Inventor 夏祖转刘永京
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD