Method and apparatus for controlling P2P flow

Abstract

The invention relates to a method for controlling the P2P flow, comprising the following steps that PE equipment sets a state parameter in a state list item of an uplink session group as an active state when source IP addresses, source ports and protocol types of a monitored data message and the uplink session group are the same and target IP addresses or target ports of the monitored data message and a prior data message in the uplink session group are different; and detection is made whether the bandwidth occupied by the uplink session group exceeds the preset bandwidth upper limit, and the bandwidth is inhibited if the bandwidth upper limit is exceeded, so as to make the bandwidth not exceed the bandwidth upper limit. The method monitors the P2P flow according to the characteristic of P2P application that the uplink flow is large instead of concrete characteristics of P2P application, and realizes control of the uplink flow and the downlink flow of P2P by utilization of the forced sharing principle. The invention also relates to a P2P flow control device. The method and the device can be realized on the prior equipment with low cost, have small influence on the equipment performance, are simple in configuration, and are easy to deploy and realize.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a P2P flow control method and control device. Background technique [0002] With the emergence and development of P2P technology, people are more and more applying P2P technology to fields such as file downloading, which not only enriches Internet applications, but also improves the attractiveness of the Internet to users. Such P2P applications usually have the following technical characteristics: each P2P node will provide content upload services for other P2P nodes during the content download process, and the P2P node will establish connections with multiple Peers to obtain and provide content resources faster . Regardless of whether it is based on the TCP protocol or the UDP protocol, the P2P node will use a fixed "listening" port (Port) during the download process. In order to avoid the "free-rider" behavior (free ride behavior, that is, the behavior of only enjoying the c...

AI Technical Summary

Problems solved by technology

[0005] (1) Identify and control the specific features of P2P applications (such as key nodes, protocol ports, and feature words, etc.), and cannot actively respond to changes in P2P. When these specific features change or new P2P applications appear, these Only when new features or new applications are re-identified can effective control be carried out

[0006] (2) Due to the need to passively track P2P changes, a large amount of network operation and maintenance costs have been increased to achieve a more ideal control effect

Images