News Articles Archives

4 03, 2016

OFDM, Completely New in DOCSIS 3.1

Mia Colabrese2023-09-06T19:41:07-04:00March 4th, 2016|

OFDM, Completely New in DOCSIS 3.1 CableLabs has just issued the first DOCSIS 3.1 certifications to five cable modem vendors. These vendors were Askey, Castlenet, Netgear, Technicolor and Ubee Interactive. Cable operators are implementing DOCSIS 3.1 trials and very soon. production systems. Frequently I receive questions about DOCSIS 3.1 such as “is it backwards compatible with DOCSIS 2.0 and 3.0 modems?”, “what are the channel bandwidths?”, “ ”, and many more. OFDM It Always Begins at the Physical Layer As with my original tutorials on DOCSIS, we start

18 12, 2015

Doubling Down on DOCSIS 3.1

Mia Colabrese2022-01-20T11:36:56-05:00December 18th, 2015|

Doubling Down on DOCSIS 3.1 DOCSIS 3.1 and PNM were hot topics at Cable Tec Expo in New Orleans and in most major publications and articles for 2015. Comcast is the largest driver of DOCSIS 3.1, but my recommendations are that whether you are a tier 1, tier 2 or even tier 3 cable operator DOCSIS 3.1 should be on your roadmap. Consumer behavior and technical innovations are leading factors behind this statement and I elaborate below. Consumer Behavior and the State of Internet Traffic Growth In May

12 11, 2015

GETTING PROACTIVE ABOUT NETWORK MAINTENANCE

Mia Colabrese2023-01-14T17:05:14-05:00November 12th, 2015|

GETTING PROACTIVE ABOUT NETWORK MAINTENANCE Proactive network maintenance (PNM) is more abstract than reacting to a crisis, and therefore, cable operators must have operational practices in place to ensure that once PNM tools are purchased they are used successfully, their benefits are tracked, and the organization is achieving the expected ROI. "Cable operators have been reactive since day one," said Brady Volpe, president and founder of the Volpe Firm. "They know how to fight fires very well. What they want is for the fires not to start. If

28 09, 2015

Hacked – Are You Sure You’re Secure?

Mia Colabrese2021-11-24T09:42:37-05:00September 28th, 2015|

Hacked - Are you sure you're secure? Security has the been a hot topic lately. As I’m writing this article I think about all of the recent events that we hear about impacting our daily lives such as: Hacks of OPM databases compromised 22.1 million people Experts warn 2015 could be 'Year of the Healthcare Hack - reuters.com' Cost of a Potential Blackout From Cybercrime: $1 Trillion - CNBC These headlines are really quite scary. I’m certain that some, possibly many of you have experienced security issues first hand.

20 07, 2015

DOCSIS Online

Mia Colabrese2021-08-18T10:05:06-04:00July 20th, 2015|

DOCSIS Reboot… Everybody is talking about DOCSIS 3.1 and the technology surrounding it. In the coming months I will cover both the emerging technology of DOCSIS and how it impacts our careers, our subscribers and our industry with a focus on DOCSIS 3.1. This is an opportunity to discuss both the technical aspects of the DOCSIS specifications and then discuss the impacts. As an example, when we first introduced quality of service (QoS) in the DOCSIS 1.1 specification there were a lot of items that were not quite tangible.

30 01, 2014

CED – Proactive Network Maintenance

Mia Colabrese2014-01-30T10:36:45-05:00January 30th, 2014|

Proactive Network Maintenance ZCorum debuts DOCSIS upstream tester ZCorum has introduced a new tool that analyzes DOCSIS pre-equalization data, which cable operators can use to identify upstream impairments. The company’s Pre-Equalization Analyzer uses technology from Nimble This to analyze the pre-equalization data from cable modems. Nimble This is a collaboration of software developers with The Volpe Firm, headed by Brady Volpe. The new ZCorum tester can not only identify upstream impairments, but also determine the location of the impairment and the severity of the impairment. This allows operators

12 09, 2013

DOCSIS 3.1: Begin Preparing Now

Mia Colabrese2013-09-12T14:45:51-04:00September 12th, 2013|

DOCSIS 3.1: Begin Preparing Now Posted on September 11, 2013 by Carl Weinschenk-BTR Experts believe that DOCSIS 3.1 is few years off. The specification has not yet been finalized. After that, test and early customer premise equipment (CPE) and corresponding CMTS and CCAP line cards will be sprinkled through systems. The bottom line is that it will be a long time until DOCSIS 3.1 is an element of everyday cable operations. So preparations should start now. The industry has been down this road before. What seems like a long road, with