Design and implementation of video quality monitoring system

Internet Service Provider(ISP)wants to know the quality of services that current network provides from the user's point of view,while users wish to obtain quantitative indicators to judge current network's service quality.For this purpose,using monitoring video quality as research object,a network monitoring system which faces users'experience of quality is presented.The QoS parameters'influences to video QoE are analysed on network transmission process by experiments;a method that detects packet loss of video by turning video streaming into test sequence is proposed,and it can measure the packet loss rate of video stream accurately with low network intrusion;based on the above research results,a video service monitoring system is built to monitor the QoE of video by expanding MIB and studying MIB's polling mechanism.The system has simple structure and strong feasibility.Experiments indicate that this system can monitor the QoE of video on network in real-time.