Client terminal active load balancing method facing to network multimedia transmission service

A transmission service and load balancing technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as inaccurate judgments, and achieve the effect of reducing bandwidth waste and reducing transmission nodes

Active Publication Date: 2008-05-21
金程科技有限公司
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Problems solved by technology

Its disadvantage is that when the global load balancing adopts the principle of "users accessing nearby" as the strategy for selecting the optimal server, in the MAN environment, th

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  • Client terminal active load balancing method facing to network multimedia transmission service
  • Client terminal active load balancing method facing to network multimedia transmission service
  • Client terminal active load balancing method facing to network multimedia transmission service

Examples

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[0029] The present invention includes the following steps:

[0030] 1) Multimedia resource download speed measurement method;

[0031] 2) Adjustments during downloading of multimedia resources;

[0032] 3) Transmission overload protection adjustment.

[0033] 1. Multimedia resource download speed test

[0034] The client obtains information from the seed file. There are a total of m nodes holding the required resources, denoted as A 1 , A 2 ,..., A m . The client first requests data of the first block (256KB) of the SHA-1 check block of the entire resource data stream from these m nodes, and conducts speed measurement. The speed measurement program is an independent unit, and the time is only 10 seconds (unfinished forced shutdown), and the rate R during the calculation is calculated. 1 , R 2 ,..., R m (Using RTT, RoundTrip Time, that is, from initiating the request to receiving the first block of data).

[0035] The client program sets different speed thresholds Fr according to d...

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Abstract

The invention discloses a network multimedia transmission service-oriented client active load balancing method, which is characterized in actively adjusting the number of the nodes of the connecting proxy service according to the nodes of the proxy service connected with the client and the transmission speed of the nodes of the proxy service. When the transmission speed exceeds a certain threshold value and causes the time consuming of the bandwidth, the transmission nodes are actively reduced. The active load balancing method can be the supplement of the lagging type load balancing method or the prediction type load balancing method of the server end, enhancing the response of the system to the network transmission and improving the service quality of the multimedia network transmission.

Description

technical field [0001] The invention relates to a load balancing technology in multimedia network transmission services, in particular to a client initiative load balancing method for network multimedia transmission services. Background technique [0002] With the development of the Internet and the popularization of multimedia services, the bottleneck of transmission bandwidth has become the main contradiction in the field of network multimedia applications. A key technology to solve network transmission and service bottlenecks is load balancing. At present, the methods used in load balancing technology mainly include: DNS round robin, HTTP redirection and IP spoofing methods. [0003] The DNS round-robin method is a traditional method, that is, multiple WWW mirror hosts correspond to the same domain name in the DNS. When a user accesses the WWW and asks the DNS server to resolve the domain name, the DNS server resolves the domain name in turn according to the sequence of t...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L12/803H04L29/08
Inventor 陆系群徐挺吴哲锋何辉
Owner 金程科技有限公司
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