More is better! It’s true for many things, and the upstream frequency range for (Euro-)DOCSIS is one of those things, but like so often in life, it doesn’t come for free. When considering extending this range it’s good to know the benefits, possible issues you may encounter, and the alternatives....

Since the early days of DOCSIS, cable modems are provisioned using DHCP, the Dynamic Host Configuration Protocol, to obtain the basic connectivity settings. When the cable modem is powered on, it begins the ranging process with the CMTS. When the ranging process completes, the cable modem starts with the IP...

How to create a cable modem config file Cable modems get their operational parameters using config files. These config files define what the internet subscription will be, what additional services are activated and other configuration details. This blog post will get you started creating your own modem config file. What’s...

While working with DOCSIS systems it is important to understand the upstream periodic ranging process. Ranging can be seen as the DOCSIS heartbeat between Cable Modem (CM) and Cable Modem Termination System (CMTS). As many people tend to struggle with the details of this process, the goal of this article is to visualize the periodic ranging process. Lets...

Will it turn out to be a marathon, or will 10 miles do this time? If understanding DOCSIS 3.0 was running 10 miles, how far will I need to run before I understand 3.1? Is the terrain rough and hilly or will it be a walk in the park? You...

If you ask cable people for the differences between DOCSIS and EuroDOCSIS, the only thing they can typically think of is the difference in downstream channel width: 6 MHz for DOCSIS, 8 MHz for EuroDOCSIS. In reality there’s a lot more to it, as we will discuss in this blog...