PYUR wanted to further optimize their quality of service by lowering latency in scenarios with and without load. To achieve this, they reached out to Excentis as DOCSIS experts, knowing all the ins and outs of the DOCSIS specifications, and having intimate insights and experience on how to optimize and finetune all the configuration settings on the devices implementing the specifications. Together, we agreed on the high-level approach that Excentis would take:.
We started by developing Python ByteBlower scripts to simulate the HTTP response time measurements for both up- and download, in scenarios with load and without. These scripts were used on an Excentis lab test setup that replicated the PYUR access network, serving as a base for researching the latency behavior. As PYUR has their own ByteBlower in use, these scripts also became a core tool for future optimized testing in their own lab.
Based on extensive analysis and testing a significantly optimized configuration was proposed to, in the end, increase the user experience.
Note that it will be not be used in Excentis Cable Modem Config File Editor, but it is needed as a parameter for the docsis tool. In a similar way, Excentis Cable Modem Config File Editor textual files can be converted to docsis tool textual files using the text2bin function of the CommandLine tool combined with the docsis -d mode of the docsis tool to display the binary config file to docsis tool compatible text.
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