Network on-demand method and system

Abstract

The invention discloses a network on-demand method and a system. The method comprises the following steps: a resource request is sent to a user resource tracking server through an on-demand terminal; the user resource tracking server carries out calculation according to the resource request, forms a resource list and sends the resource list to the on-demand terminal sending the resource request; the on-demand terminal carries out interaction with a resource node given in the resource list through a P2P (peer-to-peer) way according to the resource list, so as to obtain a resource; and the on-demand terminal plays the obtained resource, shares the obtained resource in a network, and provides an uploading service for a node with a requirement on the resource. By using the method and the system, the disadvantages of a on-demand system of a P2P network are overcome, and the cost loss of a network system is decreased while the multi-user concurrent on-line smooth on-demand is carried out.

Description

technical field [0001] The invention relates to an on-demand technology in the technical field of streaming media, in particular, to an on-demand method and system for implementing streaming media network on-demand by applying P2P (Peer to Peer) technology. Background technique [0002] At present, most network on-demand systems are C / S-based or traditional P2P-based. [0003] Based on the C / S network on-demand system, the server transmits data with the client through data transmission protocols, such as HTTP, RTSP, MMS, FTP and other protocols. This C / S master-slave mode on-demand system requires a large number of servers to support shared distribution resources, occupies a large bandwidth, and the cost of building a media resource station is high, and the effect of massive concurrent on-demand is not good. [0004] P2P technology solves the shortcomings of master-slave mode on-demand, and can meet the massive demand for streaming media. P2P (Peer to Peer) technology, als...

AI Technical Summary

Problems solved by technology

Based on this traditional P2P network media resource on-demand system, although it has realized massive / large-scale media on-demand, and has the advantages of smooth on-demand and low cost of building resource stations, it inevitably encounters the following problems, especially Media files consume more network resources, making the problem more prominent

[0005] The peer-to-peer operation strategy of this traditional P2P technology blindly emphasizes the peer-to-peer operation of users, resulting in resources being returned equally to users regardless of their location in the network. The most serious consequence is that network resources are used wantonly. A large amount of bandwidth is occupied, even up to 50% to 80%, resulting in heavy transmission pressure on the backbone network, causing serious congestion when other applications access the network; on the other hand, because P2P technology also exchanges considerable traffic between different networks , which directly leads to traffic congestion between different networks, and generates quite high operating costs

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