Method for large scale multimedia cut-in net gate

A technology of media access and access gateway, applied in the direction of network connection, data exchange network, digital transmission system, etc., can solve the problems of low bandwidth and limited link connection, etc.

Inactive Publication Date: 2005-03-02
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

But for the multimedia access gateway at the network layer, if the data in a multimedia group communication exceeds 10Mbps, there is a big problem in forwarding this large-scale communication data stream to multiple client nodes.
In addition, in actual situations, the link connections between many networks are limited, which is far lower than the bandwidth inside the network.

Method used

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  • Method for large scale multimedia cut-in net gate
  • Method for large scale multimedia cut-in net gate
  • Method for large scale multimedia cut-in net gate

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Embodiment Construction

[0027] Below we refer to the accompanying drawings to describe the embodiments of the present invention in detail.

[0028] First, the system architecture of the present invention will be described.

[0029] Usually, there are two main ways to connect to the multimedia center server.

[0030] ●Connect via multicast

[0031] ●Connect via unicast

[0032] These two issues are often discussed separately in previous studies, but in fact, users often cannot determine the specific network connection mode. Therefore, the access gateway system proposed by the present invention will consider an automatic detection method to automatically detect the network connection mode for the user. And adopt two modes of tunnel and access node to organically connect two different types of networks together, so as to solve the uncertainty of user connection mode.

[0033] Specifically, the topological structure of the access gateway proposed by the present invention is as follows figure 1 shown...

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Abstract

This invention puts forward a method for accessing gate by large scale media including: A starting the gate linked with a control server in a network state test technology to enable the server to identify all gates capable of providing services timely to get current load of the gates and generate a 'usable gate list', B When a user logs on to system by the control server, if will automatically select gate with the least load at its 'acc gate' from the list and informs the gate to serve the user, C. the gate system sets up a 'connector' objects, all objects are registered in a Hash list with deliver addresses as the key, D The gate system finds out the 'connector' according to the information of each deliverer information for transferring message.

Description

technical field [0001] The invention relates to the application of a large-scale multimedia network, in particular to a method for accessing a large-scale media gateway. Background technique [0002] The multimedia video conferencing system is a large-traffic group communication system. Using the traditional client / server model will bring a lot of data pressure to the central server, which will affect the scalability of the system. On the contrary, adopting the multicast communication mode will save network bandwidth and host processing capability very effectively. [0003] Although the multicast protocol is designed for multimedia communication, due to the limitation of network conditions, the multicast protocol is often opened in some high-speed networks and experimental networks, and it cannot guarantee that all the nodes participating in the video conference are in such a network. The access gateway technology proposed by the invention will provide transparent interface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66H04L47/76
Inventor 金天盛向治喻湘宁李未
Owner BEIHANG UNIV
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