Routing flow control method and system for streaming media data

Abstract

The invention relates to a routing forwarding control method and system for streaming media data, and the method comprises the steps: classifying the received streaming media data at each router node in a network according to a set priority rule, and putting the streaming media data into various corresponding cache queues; a token bucket and an overflow bucket are set for a cache queue of a router, the use state of bandwidth resources of a local router node in a current period of time can be determined according to a count value obtained through statistics of the generated overflow bucket in a preset observation window, and for routing table entries which are sent by different neighbor nodes and have the same destination address and the shortest distance, the use state of the bandwidth resources of the local router node in the current period of time can be determined. A neighbor node with the highest overflow bucket count serves as a strong connection node, the priority of the strong connection node in the routing process is higher than that of other common nodes which are not in strong connection, more data streams can be distributed to the strong connection node with the low bandwidth utilization rate in the routing path selection process, effective distribution of streaming media data is achieved, and the routing path selection efficiency is improved. And the congestion problem is reduced.

Description

technical field [0001] The invention relates to the field of Internet streaming media services, in particular to a routing flow control method and system for streaming media data. Background technique [0002] Streaming media refers to media formats, such as audio, video or multimedia files, that are played on the Internet in a streaming manner. The key technology for the realization of streaming media is streaming transmission. Streaming transmission mainly refers to parsing the entire audio, video and 3D media and other multimedia files into compressed packets through a specific compression method, and transmitting them in segments in the network in the form of streams. It can realize the service of broadcasting at the client terminal side, avoiding the long delay caused by the traditional transmission method that needs to download the entire media file to the local area before it can be played. [0003] With the rapid development of broadband network technology, streamin...

AI Technical Summary

Problems solved by technology

[0006] However, the token bucket algorithm does not consider the situation that local network resources wait when they are idle

Some routing and forwarding nodes in the network are in the idle state for a long time, that is, there is no or only a small amount of traffic passing through for a certain period of time, so that the bandwidth resources of these network nodes are wasted, while other routing and forwarding nodes are in a busy state for a long time, resulting in poor resource utilization. balanced

The token bucket can only control the data flow of a certain node when it is congested, but it cannot assign the data transmission task to the network node in the idle state in the network, and the data flow limit is to reduce the quality of service to alleviate the local area network. load burden, so it is not an ideal streaming media data transmission strategy

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