Peer-to-peer network and its network resource inquiring method

Abstract

The invention discloses peer-to-peer network. The network includes partition network composed of agency nodes and user nodes in network, and agency network composed of all agency nodes in network. Partitioning geographical position the agency nodes and user nodes locate at constitute partition network in use for providing node information the network resources locate at. The agency network is in use for providing information of partition network the network resources locate at. The invention also discloses method for querying network resources based on the peer-to-peer network. Using the disclosed peer-to-peer network and the method for querying network resources can use resources of target network nearby, and raise transmission performance of network.

Description

technical field [0001] The invention relates to computer network and communication technology, in particular to a peer-to-peer network (P2P, Peer to Peer Network) and a network resource query method thereof. Background technique [0002] P2P is a distributed network, which breaks the traditional terminal / server (C / S, Client / Server) mode, and the status of each node in the network is equal. Participants in the network share a part of the hardware resources owned by each network node, such as processing power, storage capacity, network connection capacity, printers, etc. These hardware shared resources need to be provided by the network to provide services and content, and can be used by other peer nodes (Peer ) directly without going through an intermediate entity. Participants in this network are both network resource providers and network resource acquirers. [0003] With the rapid development of the Internet and broadband access networks, P2P networks have been widely us...

AI Technical Summary

Problems solved by technology

However, with the deepening of research, the industry found that this P2P network has four serious problems that hinder its large-scale commercial application: first, the mismatch problem, specifically, the overlay network is a logical virtual network, It does not match the actual network, for example: the assigned identifiers of two nodes are similar, but the distance in the actual network may be very far, which seriously affects the content routing response performance and the transmission performance of actual content data, resulting in low network performance; Second, the nearest service problem, specifically, because the user identifier and content identifier in the DHT technology are evenly hashed to the entire network, the user's service is not carried out according to the principle of the closest actual network, resulting in excessive cross-region traffic The problem also reduces the quality of service for users; third, the hotspot problem, specifically, when a certain network resource is very hot, the number of copies in the network will be very large, but according to the DHT principle, the network resource The storage index will be directed to certain peers for access, resulting in a sharp increase in the number of times these peers are copied, and hot issues arise; fourth, since the network resource index information and the network resource itself are stored in the user node, therefore , when there are few online users, many network resources cannot guarantee to provide services, which affects normal business applications

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