WISPAPALOOZA 2019 Show Daily Day 2

W ISPs can happily pat themselves on the back, according to Preseem, a provider of WISP network quality of experience monitoring and optimization. According to Preseem, which collects detailed metrics on subscriber, network equipment and overall network performance from its customer base of fixed wireless internet providers, there is little throughput degradation during peak times, indicating that networks are not heavily oversubscribed. “The difference between peak and off peak is surprisingly small,” said Preseem, in its newly released “2019 Fixed Wireless Report.” “This indicates that on the whole, subscriber throughput does not degrade significantly during the busier times.” In comparison to download throughput, the per-subscriber upload rates show a larger difference between peak and off-peak. Of course, upload throughput numbers are more confusing because most subscribers do not stress the upload direction of their connec- tion, noted Preseem. Even so, the difference indicates that WISP networks may be more congested in the upstream during peak than is commonly assumed. “While subscribers care most about download performance, it is impor- tant to note that a congested upload path can cause download throughput problems because of TCP acknowl- edgement starvation,” said the report. “Similarly, a congested upload path can cause packet loss, which is also bad for the customer experience.” Preseem measures latency by tracking the roundtrip time for individual TCP segments to obtain a detailed view of the latency in the access network. This approach results in thousands of latency samples per second per subscriber. This is fundamentally different than ICMP ping-based latency measurement because it measures true end-to-end latency including the latency in the subscriber’s home, said the company. Somewhat surprisingly, the study found that latency difference between peak and off-peak times is relatively small. It should be noted, however, that these metrics are collected from networks where Preseem is deployed to optimize latency and the subscriber experience. There- fore, it is quite likely that the latency in networks without such optimization is significantly higher. In terms of subscriber usage, or the total number of bytes transferred by a WISP subscriber over a period of time, Preseem found that the average subscriber download usage for WISP subscribers is 6.6 GB per day, or 196 GB per month. As might be expected, the average hides significant variation between subscribers, said Preseem. For instance, the “2019 Fixed Wireless Report” shows that 33 percent of subscribers use less than 1 GB of download usage per day and almost 11 percent use more than 16 GB per day. Look for more data points from Preseem’s “2019 Fixed Wireless Report” in Day 3 of the WISPAPALOOZA 2019 Show Daily. m Visit Preseem at WISPAPALOOZA 2019 booth #700. Source: Preseem Source: Preseem 2 0 WISPA PALOOZA SHOW I OCTOBER 14 - 18, 2019 www.bekabusinessmedia.com L Z OO 2019 COMMENT Lorem Ipsum Dolor Sit Amet 02 DAY 03 AY 03 DAY 01 DAY 2 Know Your Network, Courtesy of Preseem