Reverse Option: iPerf Version 2 vs 3 iPerf version 2 and 3 are currently maintained in parallel from two different teams. iPerf has been around for more than 15 years;...
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Network Testing and Troubleshooting Network testing and troubleshooting is an art and a science that every network engineer should master. That means, it’s a field that requires knowledge and preparation...
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Recently our team received word that several clients in a classroom where disconnecting while doing online benchmark tests. The clients will rename nameless but were of the “lower end” variety. These clients were single band 802.11n devices which have had a bad track record of reliability, no matter what the…
What NetBeez Does NetBeez captures network and application performance (e.g. latency increase) from the user perspective on wired and wireless networks. Sensors at each network location run tests and simulate the user experience. We have dozens of demo NetBeez agents deployed around the country and the world and we collect…
Multiple Input Multiple Output (MIMO) routers have become the standard in commercial and consumer WiFi. However, combining optimally multiple wireless signals in order to achieve higher data transfer rates is a challenging problem for dynamic and crowded wireless environments. The good news is that an MIT group has demonstrated significant…
On April 14th, I presented Distributed Network Monitoring for Wireless Metropolitan Networks during Mobility Field Day 1.Mobility Field Day is a two-day live-streamed event on wireless mobility organized by Stephen Foskett and his group. You can watch the recording of the video here. In my presentation, I first talked about…
Between the 3rd and the 8th of April 2016, the Internet Engineering Task Force (IETF) group met in Buenos Aires, Argentina. Bill Jensen and James Dishongh are two of the network engineers involved in the design and deployment of the network infrastructure that provided wired and wireless connectivity to the…
There are more than 8 million Raspberry Pis around the world, and at least a million in the US (I don’t have numbers, but I think this is a safe assumption). In a previous post, I described how to use a Raspberry Pi to monitor your parents’ home network. But…
Active monitoring of data centers is nothing new to NetBeez. In a previous post, I showed how leaf-and-spine data centers based on Cumulus Linux can be monitored with NetBeez. I also wrote about how Microsoft is monitoring its data centers with an active probing system called Pingmesh. You may not…
Synthetic Network Monitoring Synthetic network and application monitoring is accomplished using agents that run scripts to emulate user behavior. The agents run on workstations placed at multiple locations on an Intranet and/or Internet. The objective of synthetic monitoring is to collect end-user experience information data and provide a mechanism to…
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