Content route managing method of fusion type content distribution network

A technology of content distribution network and management method, which is applied in the field of content routing management to achieve the effect of reducing traffic settlement costs and improving data transmission service quality

Active Publication Date: 2014-09-03
HARBIN INST OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

No two-layer content node deployment mechan

Method used

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  • Content route managing method of fusion type content distribution network
  • Content route managing method of fusion type content distribution network
  • Content route managing method of fusion type content distribution network

Examples

Experimental program
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Embodiment Construction

[0049] Such as figure 2 As shown, this embodiment describes in detail the routing management method of a converged content delivery network according to the present invention:

[0050] The routing nodes in the ISP domain can usually be divided into three categories: edge routing nodes (marked as set E), core routing nodes (marked as set F) and inter-domain routing nodes (marked as set T), such as figure 2 shown. The present invention defines edge routing nodes, core routing nodes and inter-domain routing nodes as follows:

[0051] Definition 1 Edge routing node: The routing node directly connected to the host is called the edge routing node.

[0052] Definition 2. Inter-domain routing nodes: The routing nodes connected to other ISP intra-domain routing nodes are called inter-domain routing nodes.

[0053] Definition 3 core routing nodes: all routing nodes in the ISP domain except edge routing nodes and inter-domain routing nodes.

[0054] If all content servers are deplo...

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Abstract

The invention provides a content route managing method of a fusion type content distribution network, belonging to the technical field of internet. The invention aims to provide a two-layered content node deployment mechanism aiming at ISP-CDN (Internet Service Provider-Content Distribution Network) and design an indexing and synchronization mechanism to improve a content route policy under a CDN environment; a flow settlement cost and data transmission quality are considered. The network data is singly processed, namely the flow cost consumed by primary transmission is only related with a passed route hop count and the size of the data is not considered; an inverse ratio relation is formed between the node quantity selected from a core route node set F and the repeated flow; a synchronous cost is in direct proportion to the node quantity; a synchronous initial source is an inter-domain router node; with regard to an inter-domain route node t, a breadth first search algorithm is used for generating k content nodes covered by a minimum spanning tree TR which takes the t as a root; the k notes are found and an RC+SC minimum is realized by adopting an algorithm based on a greedy strategy.

Description

technical field [0001] The invention relates to a content routing management method, which belongs to the technical field of the Internet. Background technique [0002] With the continuous upgrading of Internet technology, the performance of the server-network forwarding equipment-terminal machine has been greatly improved, such as bandwidth, forwarding rate, processing capacity, etc. Online real-time applications such as high-definition video transmission have become popular, prompting Internet traffic to increase exponentially . The ever-increasing traffic, complex and changeable structure, and the asymmetry of server and client capabilities and resources have prompted the emergence of content distribution technology, thereby ensuring that users at the edge of the network can obtain a good access experience. In the early CDN, by setting up servers with the same content at the edge of the network, the dynamic resolution of DNS was used to disperse the access traffic to the...

Claims

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Application Information

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IPC IPC(8): H04L12/24
Inventor 何慧张宏莉张伟哲李乔秦泓洋范国涛王雅山
Owner HARBIN INST OF TECH
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