Network Flows on a Typical Home Network In our ISP Network Report, we provide statistics on typical home Internet usage and latency, as they relate directly to the customer experience. For example, we found that the average download usage for fixed wireless...
A Small Study of DSCP Usage at US Regional ISPs The IP Differentiated Services Codepoint (DSCP) field (RFC 2474) is a mechanism that enables traffic to be treated differently by the network. This mechanism has seen little adoption on the public Internet due to...
ONT Rx Power vs. Fiber Length Over Time This post is the last in our short series exploring light levels (signal strength) in PON fiber networks. In the first post, we looked at Rx power vs. fiber length. The second post explored attenuation (Tx power minus Rx power)...
Fiber Attenuation and Length for Adtran and Calix A few weeks ago, I posted an analysis of signal strength vs distance in fiber (PON) networks based on a random sampling of ONT stats in Preseem. This is what that looks like for Adtran and Calix respectively. After...
ONT Receive Power versus Fiber Length How Adtran, Calix, and Ubiquiti Compare At Preseem, we collect a lot of data from ISP access networks to help operators move from reactive to proactive operations and make their teams more efficient. On the fixed wireless side, we...
Preseem is a Quality of Experience (QoE) monitoring and optimization platform. It uses highly granular and frequent network telemetry to find problems that negatively affect the subscriber experience. This post outlines a real-world WISP network configuration problem...
How Quality of Experience Monitoring Differs from Traditional NMS Tools Traditional network monitoring tools are not enough to ensure your network delivers a good user experience. That's because they measure what is, at best, a proxy for the customer’s real network...
The Reality of Netflix Streaming Due to a nasty flu that hit my family last weekend, our household had an overdose of Netflix streaming. Looking at the Preseem charts from those days, I was reminded of the value of metrics sampled at high frequency. To illustrate...
In a previous blog post, we wrote about the analogy of medical telemetry to network telemetry. We also looked at how telemetry solutions should offer metrics at a high granularity (specific) and at short intervals (frequent). In this post, we'll look at which network...
Network Monitoring: Many Shades of Gray Traditionally, networks have been monitored through pinging or polling network elements such as routers and switches to determine if they're online or offline. This is often done at long intervals, such as every one or five...
How Network Telemetry Improves ReportingIf you have a medical background or have spent time in a hospital, then the term telemetry may not be new to you. If this isn’t the case, then you may be wondering where the term network telemetry comes from. Bear with us as we...
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