Routing system and method of content distribution network

Abstract

The invention discloses a route system for content distribution network. The content distribution network comprises a core layer for executing CDN protocol of a content distribution system, and the core layer includes a core node, a trunk layer for executing switching between CDN protocol and P2P protocol and including a trunk node, and a P2P autonomous region connected with the trunk layer and positioned at the edge of the P2P autonomous region. The trunk node at the edge serves as the server of the P2P autonomous region, and the core layer and the trunk layer share an implementation application distribution layer. The trunk layer achieves a service load layer, and the P2P autonomous region achieves a P2P client. The route system comprises a two-stage route device including a global server load balancing device GSLB and a local server load balancing device SLB, wherein the GSLB is positioned on the trunk node on a trunk network for achieving redirection of the service load layer; and the SLB is positioned on the trunk node at edge of the trunk network for achieving redirection in the P2P autonomous region based on P2P route algorithm and the distribution condition of P2P client Peer.

Description

technical field [0001] The present invention relates to the routing technology of content distribution network, more specifically, to a routing technology of node overlapping content distribution network. Background technique [0002] With the development of the streaming media business, the content distribution network has a broad market prospect. [0003] At present, the content distribution network CDN system of China Telecom carries part of the VNET streaming media business. The service provider SP connected to the system mainly provides streaming media files in WMV format to support on-demand services and a small amount of live broadcast services. Ready to start. [0004] However, the current development of services carried by the CDN system of China Telecom is not ideal, and the existing CDN system has not been fully utilized. In the process of business development, there are still a large number of film and television SPs and other SPs that have not been connected t...

AI Technical Summary

Problems solved by technology

[0007] 1) The business model is single: the business volume is mainly from live broadcast, and the proportion of on-demand video is small; only streaming media and download services are supported, and services such as Web cache and P2P are not supported; in addition to the bearer business model, hosting (self-operated) services need to be expanded model

[0008] 2) SP access: access flexibility is not enough; access period is long; SP self-service function is not enough

[0009] 3) Business operation: less business-oriented statistical functions

[0010] 4) The network structure and business process are not reasonable enough: the health check of load balancing is not perfect, the strategy is single, and the cross-provincial service problem caused by the DNS mechanism; to adapt to the interconnection of the provincial network, it is necessary to realize the process of level-by-level distribution and host miss processing;

[0011] 5) Insufficient functions of the management support system: poor interoperability for multi-vendor equipment; insufficient content management functions, problems in multi-chip library management, unified management, distribution, and access statistics of content; single-use problems in the management support system

But desktop computers tend to have lower levels of security

If all the desktop computers in the office are interconnected through the internal P2P network, it will greatly increase the risk of insecurity--hackers can access the entire network unimpeded as long as they access one of the computers

[0015] 3) Cost issues: developers of commercial applications need to carefully detect the server resources and bandwidth required by enterprise applications

The possible result of the above problems must offset the original advantage of P2P that can reduce server-side expenses.

[0016] Energy consumption is also a problem - in the P2P model, the client system will need to run 24 hours without shutting down - and the emergence of this situation will lead to an increase in the overall cost of the P2P solution

Although the hardware equipment used in the P2P system may be lower than the price of the server, experts point out that the real cost of the P2P model lies in planning and management.

[0017] 4) Network bandwidth problem: Due to the large number of users in the P2P network, when a user searches, he will naturally get a large number of search results

In my country, the narrow network bandwidth has become an insurmountable obstacle for P2P applications

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