What are the main IPTV QoS standards and metrics and how do you apply them?

It matters little what standards are created, unless they are adopted and deployed by those internet service providers on the packet route. In a walled garden network set ch as FadtWeb who deployed IPTV in Milan on Dec 2000, the network core can be wide enough to not even require traffic prioritization at all. Practical solution begins at the video source, VoD servers or live transcoders: rudimentary traffic shaping that smooths the transmitted bitrate, thus avoiding bursts, goes a long way to avoid transit buffer congestion and resulting packet loss. This method was proven with VoD server and live stream multipliers from BitBand Technologies back in the year 2000 FastWeb deployment.

QoS standards are determined by relevant organizations based on various criteria such as Sufficient bandwidth, allowable delay, Jitter and variations in packet arrival, and packet loss rate. For instance, in 2009, the ITU-T, the standardization sector of the International Telecommunication Union, approved the Y.1901 standard, which specifies the high-level requirements to support IPTV services.These include IPTV requirements for service offering, network aspects, QoS and QoE, service and content protection, end system, middleware, and content.

From a practical perspective, all that it takes is finding r the clients to record the packet loss and retransmission counts and rates and reports those back to the service backend in the background. These metrics are readily available via ‘netstat-s’ on any Unit x based platform, however per connection stats would be more accurate, fine grained. Additional metrics from the video player would gauge severe network outages causing re-connections and HA failovers.

Several metrics are used to measure the quality of service provided in IPTV, including: ??????????????: Bandwidth, Jitter, delay in sending and receiving data packets, packet loss, and bitrate, which is the amount of data transmitted per second. ?????????? ??????????????: Frame rate, video resolution, video compression ratio, and VQA (Video Quality Assessment). ???????? ????????????????????: Buffering time or waiting time for video playback to start, the number of interruptions or the number of times video playback is interrupted, and user satisfaction. By using appropriate tools and software, network operators can measure and analyze these metrics and take the necessary steps to improve IPTV service quality.

IPTV QoS monitoring is performed using software tools such as specialized network monitoring software and traffic data analysis tools. The Simple Network Management Protocol (SNMP) is an internet standard protocol used to monitor and manage network devices connected over an IP. SNMP is used for communication between routers, switches, firewalls, load balancers, etc. However, IPTV QoS monitoring can also face challenges. For example, the volume of data and the generation of traffic data in IPTV networks is very high, making analysis difficult

Troubleshooting can be performed on various parts of an IPTV network. For instance, in the client-side, troubleshooting needs to be done on the STB, which can be achieved by updating its firmware or checking for hardware issues. Additionally, by verifying and reconfiguring the STB settings, some problems can be resolved. In other parts of the network, the CDN can be examined. If the network traffic is overloaded, the causes of this problem can be identified and solutions can be provided. In the network hardware section, logs and error lists generated by the applications can be used to resolve issues."