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. That is exactly what this article offers.
Extended upstream power allows 3.0 cable modems to transmit upstream bursts at higher powers than previously established. This feature has been added some time after the introduction of EuroDOCSIS 3.0. But why? Do we need higher powers now than before?
The first steps in a new technology are always challenging. To control the take off for the upcoming DOCSIS 3.1 (promising a great deal of capacity potential), it helps to supplement the theory with a more practical view on things. You don’t want to launch a pilot or field trial without some prior practical experience, right? In this blog post we'll take a signal/spectrum analyzer and find out what the DOCSIS 3.1 OFDM downstream signal really looks like.
DOCSIS 3.1 is the latest version of the DOCSIS set of specifications, promising speeds of up to 10 Gbps . It defines a totally new physical layer for achieving those speeds. However to fully utilize its features, HFC network upgrades are required. The goal of this course is to provide insight into...
New features and bug fixes require new software to be downloaded and installed onto a cable modem. DOCSIS defines a secure way to do this: the Secure Software Download (SSD) mechanism. This blogpost describes that mechanism and how it changes in DOCSIS 3.1.
Although Wi-Fi operates at different frequencies than the ones used by the DOCSIS system, many interference cases have been observed. The interference can have an impact on the DOCSIS system, on the Wi-Fi system or on both.
Excentis supports CableLabs DOCSIS 3.1 interops with ByteBlower for traffic generation.
After the summer holidays we started working with fresh energy on a brand new large scale test set-up! It’s now fully ready and tested. Read on for details and photos.
Thanks to the power of the cloud, it's easier than ever to break the encryption as used with DOCSIS and EuroDOCSIS. Since version 3.0 of the standard it's also much easier for operators to counter these attacks, but despite having arrived at DOCSIS 3.1 already, not everyone already implements the DOCSIS 3.0 security. This blog post explains what the problem is, and more importantly: tells you how to protect your network.
Nothing is perfect. We all know this, and we have to live with it. However, trying to improve is a key to success. This is true for cable networks as well. A bad plant condition and interferers may degrade the communication between CM and CMTS. Luckily though there is lot of data that can be monitored to detect quite some issues.