Data distributing/obtaining method based on network information

Abstract

This invention relates to a data distribution and getting method based on network information, in which, said method includes: a resource getting node sends a request for getting resources to a resource index server, which searches for it in a resource state library to look for addresses of all resource peer points capable of providing said specific resources currently and feeds back a neighbor list to the resource getting node based on the neighbornhood principle, the getting node sends an obtaining request to the peer points on the list based on the addresses provided by the neighbor list and receives or uses resources, which fully utilizes a physical network topological information to get the lastest neighbor list and reduces multiple data paths resulted in using overlay network in the physical network.

Description

technical field [0001] The invention belongs to the field of data distribution / distribution, in particular to a data distribution / acquisition method based on network information. Background technique [0002] At present, in the field of data distribution / distribution, two types of data distribution / distribution methods are usually adopted: (1) content distribution network (CDN: Content Distribution Network) based on operator controllable (2) end-to-end (P2P) based on terminal system : Peer to Peer) data distribution / acquisition method. [0003] In the field of data distribution / distribution research, there are also explorations that try to combine CDN technology and P2P technology, that is, setting server buffer nodes in the P2P network (can be online for a long time, and the reliability, service capability, and port rate are higher than the terminal system) , Some people call this method the second generation of P2P technology. [0004] CDN technology is based on traditio...

AI Technical Summary

Problems solved by technology

[0007] Since the P2P network ignores the topology of the physical network, it will have various impacts on the actual network, such as two application nodes located in the same physical Ethernet, but in different branches of different logical topology trees in the P2P network , so if the two nodes want to communicate, they must go through different nodes on the two branches until they have the same branch node; another example is when a new node joins the P2P network, due to the P2P network construction logic, the new node should have Taking a node in the same physical network as the parent node, but actually choosing a node in another physical network as the parent node, resulting in an increase in communication delay or a decrease in performance, etc.

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