The EVQA soft probe is an APK software that resides on the set-top box. It can passively monitor and capture all IP traffic entering and leaving the set-top box network port, and can automatically identify various video streams and EPG interaction data. Perform QoS/QoE parameter statistics, and then report these statistics parameters to the ACS collection server through the TR-069 communication protocol.

Although the soft probe is only data acquisition and Analysis on the terminal side, the soft probe system background can be collected and analyzed according to which CDN is accessed in the location of the set-top box (which the network element belongs to), and finds the network element and the CDN node with poor access quality.

By deploying the EVA hard probe at the program source and the CDN outlet, deploying the EVA-MINI dial probe on the network element, and deploying the EVQA soft probe in the set-top box, the full coverage service monitoring + service dial test can be achieved.

The EVA Network Service Overview page automatically detects the triple play services in the IP network, showing the distribution of IP video multicast, VOD on demand, voice and data services, and the distribution of key protocols. It can automatically discover the QoS/QoEproblems existing in the IP video service, generate various alarm events, and give an overall service quality score based on this.

The EVPM central management platform can help IP video network administrators to more effectively manage various EVA probes distributed throughout the network, and centrally monitor the overall IP video network service quality collected by each EVA probe.

Video MOS is an overall indicator reflecting video quality. It has certain links with the video server’s encoding quality, network packet loss and jitter. According to the definition of ITU-T P.800 subjective MOS scoring method: VMOS is 4-5 points, good; 3-4 points, acceptable; 2-3 points, worse; less than 2 points, unacceptable.

The quality of video services perceived by interactive TV users (user experience) is susceptible to a variety of factors, such as the price of interactive TV, user expectations, user personalized behavior, network performance and quality of service. From the technical level, the factors affecting the quality of interactive TV services mainly include four components: video content quality, video transport stream (MPEG TS) quality, IP network transmission quality, and user interaction quality.

As a digital video service, IPTV must compete with traditional cable TV. Since people have become accustomed to the low cost of cable TV, uninterrupted service availability and fast channel switching time, how to ensure that IPTV user experience quality can reach (or exceed) cable TV becomes a key factor in IPTV success. These changes are bound to be It will also bring many new difficulties and challenges to operators in the management, maintenance and testing of IPTV networks.