Transfer method and system for peer-to-peer overlay network

Abstract

The present invention provides a transfer method and system for a peer-to-peer overlay network. The transfer method for the peer-to-peer overlay network is used for searching for a relay node between a source host node and a target host node in the peer-to-peer overlay network which comprises multiple host nodes and a bootstrap server. The transfer method comprises the following steps: acquiring coordinates information by the communication between the host node and the bootstrap servers, wherein the coordinates information is used for calculating the time delay between two host nodes based on a distance prediction mechanism; performing host node clustering to make a part of the host nodes as clustering agent nodes and the other host nodes as the host nodes belonging to the clustering agent nodes; selecting, from the clustering agent nodes, the relay node between the source host node and the target host node based on the distance prediction mechanism. With the transfer method and system for the peer-to-peer overlay network of the present invention, effective relay node can be found rapidly in the peer-to-peer overlay network, so that a substitute route with shorter time delay, higher efficiency and stronger stability is established, and high performance communication of peer-to-peer is realized.

Description

technical field [0001] The embodiments of the present invention relate to network access technology, and in particular to an end-to-end overlay network transfer method and system. Background technique [0002] The current Internet network layer has poor overall routing efficiency due to factors such as the routing protocol and network architecture used. The default route selected by the best-effort delivery principle at the IP (internet protocol: Internet Protocol) layer has been difficult to meet many real-time requirements. High performance requirements of application layer services. The main reasons include the following aspects: [0003] In IP layer routing, when data packets are sent across different domains, the border gateway protocol (BGP: border gateway protocol) only guarantees connectivity and reachability, and it does not provide the shortest path. The transmission delay in the case of such two-point direct connection is often too long, so that it cannot meet t...

AI Technical Summary

Problems solved by technology

Because from the current research, there are a lot of TIV (triangle inequality violations) phenomena in the Internet network, such as figure 1 As shown, about 40%-50% of the paths have alternative paths with equivalent or lower delay, and 80% of the paths have alternative paths with lower packet loss rate

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