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Method, system and device for responding service request from user in content distributing network

A content distribution network and service request technology, applied in the field of streaming media applications, can solve problems such as network congestion, failure to consider the link status of user terminals to CDN service resources, and failure of user access to obtain normal services, so as to achieve the best quality of service Effect

Inactive Publication Date: 2008-10-15
蓝汛网络科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, when the load balancing system allocates CDN service resources for user terminals, it only considers whether the CDN service node has idle resources, the distance from the local DNS of the user terminal, etc., and does not consider the link status of the user terminal to the CDN service resources. , which may cause the CDN service node to be idle and available and the closest distance to the local DNS of the user terminal, but due to the congestion of the network from the user terminal to the CDN service node, the user's access cannot get normal services, which greatly reduces the Service Quality of CDN System

Method used

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  • Method, system and device for responding service request from user in content distributing network
  • Method, system and device for responding service request from user in content distributing network

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Experimental program
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Embodiment 1

[0087] Step A01: The user terminal directly initiates a content service request to the load balancing system in the CDN management control layer; if there is content service data requested by the user terminal in the CDN, go to step 402; otherwise, the CDN neutralizes the link condition of the source site The best CDN service node obtains the requested content service data from the source station, and proceeds to step 402;

[0088] Step A02: The load balancing system selects and initiates content services according to the pre-collected resource status information of the CDN service node and user terminal information (including resource status information, and link status information with the CDN service node and other user terminals) A content distribution node whose link status between the requested user terminals meets the preset conditions and has idle resources, the selected content distribution node in this embodiment is a CDN service node; then, return the IP address of t...

Embodiment 2

[0092] Step A11: the user terminal initiates a domain name resolution request to the service site through the local DNS, and the request is forwarded to the load balancing system in the CDN management control layer;

[0093] Step A12: The load balancing system first obtains the IP address of the local DNS in the domain name resolution request, and then searches for the IP address range of the user terminal using the DNS according to the IP address, determines the network area to which the address range belongs, and assigns the network area As the network area where the user terminal that initiates the domain name resolution request is located;

[0094] The load balancing system then initiates a domain name resolution request based on the pre-collected resource status information of the CDN service node, user terminal information (including resource status information, and link status information with the CDN service node and other user terminals), and the determined In the net...

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Abstract

The embodiment of the invention discloses a method for responding to service requests of users in a content distribution network, which comprises the following steps that: the service requests sent by user terminals are received; the service requests are used for requesting address information of content distribution nodes; the information of link state between the user terminals and the content distribution nodes in the CDN is obtained; according to the information of link state, the content distribution nodes meeting preset conditions with the user terminals are selected; the address information of the selected content distribution nodes is returned to the user terminals. The embodiment of the invention also discloses a content distribution system and load balancing equipment. By adopting the method, the system and the equipment of the invention, the service quality of the CDN system can be improved.

Description

technical field [0001] The invention relates to the field of streaming media applications, in particular to a method, system and device for responding to user service requests in a content distribution network. Background technique [0002] With the rapid development of Internet services and content, the growth rate of content and traffic has exceeded the speed of physical network expansion. At this time, network congestion will occur and affect the service application experience. Content Delivery Network (CDN), as a technology and service to improve the efficiency of Internet content transmission, especially to improve the service quality of video and other multimedia content transmission, and save backbone network bandwidth, has been more and more widely used and promoted. [0003] Such as figure 1 As shown, the CDN network architecture is mainly composed of a management control layer and a network content distribution layer. Among them, the management control layer is co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/56
Inventor 何燕锋张焕强厉建宇
Owner 蓝汛网络科技(北京)有限公司
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