P2P traffic optimization method supportive of hierarchical network topology

Abstract

The invention discloses a P2P traffic optimization method supportive of a hierarchical network topology and mainly solves the problems that hierarchical network topology information cannot be processed and effective optimization cannot be realized in the prior art. The method comprises the following steps that: a network topology information server (NTIS) in each autonomous system (AS) only collects the topology structure in the local AS and the topology structure of the entire network from a router in the local AS, creates a hierarchical topology structure of the entire network and offers to a traffic optimization server; the traffic optimization server calculates the hierarchical traffic optimization distance from a certain peer node in the local AS to any node in the entire network for the query of a traffic optimization client; and the traffic optimization client selects the peer node of relatively short distance according to the hierarchical traffic optimization distance, establishes connection with the peer node and transmits data. By the method, the hierarchical network topology information can be processed, and the value of different links is reflected; and the method can be used for reducing the P2P traffic on each layer of network.

Description

technical field [0001] The invention belongs to the field of network technology, and relates to P2P flow optimization supporting hierarchical network topology, which can be used to reduce the cross-network flow of P2P software, optimize the distribution and flow direction of P2P flow in the network, and improve the download performance of P2P software at the same time. Background technique [0002] Based on the P2P (Peer-to-Peer) principle, file downloads, video streaming media sharing, and Internet telephony have increasingly become the main applications on the Internet. At the same time, P2P traffic has occupied the vast majority of Internet traffic. A ratio of 50% to 70%. While P2P software brings quickness and convenience to users, it has become a nightmare for Internet Service Providers (ISPs). Many ISPs believe that huge P2P traffic has brought network congestion and affected the normal operation of other network applications, so they have adopted various measures to ...

AI Technical Summary

Problems solved by technology

However, the existing P2P application layer traffic optimization method does not consider the hierarchical characteristics of the Internet topology, and cannot receive hierarchical topology information from the intra-domain and inter-domain routing systems, but only regards the Internet as a single plane network. Links are treated equally, so the value of different links and ISP preferences cannot be reflected, and the traffic on each level of the network cannot be reduced from high to low, and effective optimization effects cannot be achieved

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