Unlock instant, AI-driven research and patent intelligence for your innovation.

A video net switching method based on sdn switch

A switch and video technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as unfavorable multi-layer switch cascades, bandwidth loss, etc.

Active Publication Date: 2018-08-28
COMMUNICATION UNIVERSITY OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Source-based video switching technology can achieve net switching, and at the same time, it is better in terms of bandwidth utilization, but it is not conducive to the cascading of multi-layer switches, and there is also a greater risk in terms of time reference
Purpose-based video switching technology can easily complete multi-level expansion, and net switching is also relatively easy to achieve, but to achieve net switching, the bandwidth will be lost by half

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A video net switching method based on sdn switch
  • A video net switching method based on sdn switch
  • A video net switching method based on sdn switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The embodiment of the present invention provides a method for net video switching based on an SDN switch, which controls the switching of video streams by sending a flow table through the SDN, and at the same time buffers the video streams in the switch and completes precise switching. details as follows:

[0020] (1) Basic process of video switching

[0021] (1) Source A and Source B are the video sending ends, Destination is the destination end, the switch has port 1, port 2 and port 3, and the video streams of Source A and Source B reach port 1 and port 2 of the switch respectively. The switch analyzes the received video stream and extracts the tuple information (including source IP, destination IP, source port number, destination port number, etc.). The SDN controller adds flow entries through the Flow Mod message, sends the flow table to the switch, and the switch matches the extracted tuple information with the flow table through the table lookup algorithm, and d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a video net switching method based on an SDN switch. The video stream switching is controlled by sending a flow table through the SDN. At the same time, the video stream is buffered in the switch and the precise switching is completed. The technical solution of the invention is used to implement the IP process of media video production. Based on the software-defined network (SDN) in the software-defined network (SDN), the precise video switching (clean switching) based on the switch of the video stream is realized.

Description

technical field [0001] The invention belongs to the technical field of video production, and in particular relates to a software-defined network (SDN)-based switch-based precise video switching (clean switching) method in the process of media video production. Background technique [0002] Since the broadcasting industry has entered the digital age from the analog era, IP-related technologies have penetrated into the broadcasting industry step by step. Production has changed from linear to nonlinear, media assets have changed from tape libraries to disk arrays, and broadcasting has changed from video recorders to servers. In terms of hardware equipment alone, the equipment room of radio and television is quite close to that of IT enterprises. The biggest difference between the two lies in the transmission method. The most common method in the broadcasting industry is to use the SDI standard to transmit signals through coaxial cables. This looks very different from twisted-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04L12/933H04L12/935H04L29/06H04L49/111
CPCH04L49/10H04L49/30H04L49/90H04L65/60
Inventor 颜金尧耿俊杰蔡洋
Owner COMMUNICATION UNIVERSITY OF CHINA