Moreover, the speed test success probability is also predicted for every active PON in the network. It can run what-if scenarios to accurately predict speed test success probability for a current or target configuration. This app provides network design and capacity planning recommendations. And to make it easily accessible to operators, we’ve implemented it in a new Altiplano application called the PON Capacity Planner. Using digital twin technology helps to improve capacity planning and can result in increased PON utilization: up to 33% higher peak rate or double the number of users. Using a large set of training data, we can train a digital twin that predicts speed test success probability for all possible network and service configurations – including PON technology, split ratio, peak-hour throughput per user, offered peak rate, number of heavy users, and BSO status. Predictions can involve simulations that include a comprehensive physical model of the PON downstream scheduler and traffic shapers. Moreover, we can focus on speed test success probability, which bridges the gap between congestion risk and the user experience. These models can then be used to predict the congestion risk. High-frequency telemetry can be enabled for thousands of subscribers simultaneously, creating a large database of traffic models capturing all the statistical characteristics of the residential internet traffic. This can revolutionize PON capacity planning. 5 second intervals, sufficient to enable real-time monitoring, optimization, automation and other programmable actions. Data can be collected at high frequency e.g. Thanks to the arrival of software-defined access networking (SDAN), network controllers can monitor a much larger number of network devices, with AI/ML capabilities processing many more data points – up to 20x more counters, in fact – than legacy network management system (NMS). New techniques to mitigate the negative impact of long downloads on the congestion risk such as bandwidth sharing optimization (BSO) are not factored in. Established capacity planning does not account for such heavy usage. The impact of the PON downstream scheduler (WFQ) and traffic shapers is not considered.ĭue to game and video downloads (for example, a whole series), long-lasting full-speed downloads occur frequently. This shortcoming is mitigated by the QoE constant K, but such a mitigation may result in an overly conservative service offering and split ratio.īecause traffic fluctuations are not modeled, the formula cannot estimate the risk of congestion. The statistical properties of this traffic (variance and autocorrelation) are not taken into consideration. However, residential internet traffic is bursty. The formula uses the average peak-hour throughput per subscriber as input. Such a simple formula is understandably limited and imprecise: The second term (K x PIR) is added to cope with traffic fluctuations such that every user has a good QoE. The first term of the formula (N x T) allocates sufficient bandwidth for the average peak-hour traffic generated by N users. In this formula, C represents the required PON capacity, N the number of PON users, T the average traffic per user during peak hour, PIR the peak information rate, and K a QoE (Quality of Experience) constant. However, despite the pace of change in broadband, capacity planning methods have stood stillĮstablished capacity planning practices use a simple formula to assure that, during peak hour, at least one of the PON users provisioned with the highest bandwidth tier can download at full speed. A crucial element of ensuring this performance is capacity planning: determining and optimizing network resources, notably bandwidth, needed to meet current and future demands efficiently. The ever-increasing demand for bandwidth from an ever-increasing user base continues to increase pressure on broadband providers to deliver reliable, high-performance connectivity. Solutions for industry and the public sectorīroadband never stands still.Stadiums, arenas and entertainment venues.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |