DOCSIS Archives

1 02, 2017

DOCSIS CMTS Suggestions, Best Practices and Recommendations

Mia Colabrese2021-08-16T17:18:15-04:00February 1st, 2017|

DOCSIS CMTS Suggestions, Best Practices and Recommendations Episode 25 Today is Friday January 27th and this is episode 25 of Get You Tech On - the cable industry’s #1 DOCSIS podcast. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is the a man who is world famous in certain parts of the country, John Downey, CMTS Technical Leader at Cisco Systems, welcome John thanks for coming back again. Today’s episode is a good one. I’ve accumulated a backlog of questions on DOCSIS CMTS optimization we

2 09, 2016

How DOCSIS Revolutionized the Cable Industry

Mia Colabrese2024-11-21T13:32:09-05:00September 2nd, 2016|

How DOCSIS Revolutionized the Cable Industry The cable industry is constantly facing competitive threats from companies like Google and Verizon who up the data speed game with fiber optic cable. They compete by offering higher and higher data speeds at lower and lower prices. But before we get into that, let’s look back at the 20 years of DOCSIS history and how DOCSIS has revolutionized the cable industry. Google Fiber Expansion (Source: Google.com) 20 Years Ago - The Internet Emerges The year was 1996. Broadband Library was celebrating

8 08, 2016

Top Reasons Cable Modems are not Getting Expected Speed and CMTS Monitoring

Mia Colabrese2021-08-16T20:05:30-04:00August 8th, 2016|

Cable Modems not Getting Speed - Top Reasons Cable Modems are not Getting Expected Speed and CMTS Monitoring Episode 22 Hosted by Brady Volpe of the Volpe Firm, Nimble This and Guest John Downey, CMTS Technical Leader at Cisco Systems. Today’s show we will cover cable modems not getting speed and monitoring your CMTS for proper Cable Modem State and Service Flow Operation. At the bottom John has supplied us with his presentation if you would like to listen along with viewing the slides. There were some technically issues

27 07, 2016

DOCSIS 3.1 In Your Plant Now

Mia Colabrese2016-07-27T11:00:12-04:00July 27th, 2016|

DOCSIS 3.1 In Your Plant Now In last month's article we focused on demystifying OFDM in DOCSIS 3.1. If you did not read the article please do, because we are going to now build on what we learned last time in the Broadband Library DOCSIS Online article titled “OFDM, completely new in DOCSIS 3.1”. You can find it in the archives with this link: bit.ly/OFDM3 - Also, for those not familair with bit.ly, its just a URL shortening service. Just click on the link or type it into

20 04, 2016

RF Measurements in the Cable Plant

Mia Colabrese2021-08-16T20:15:37-04:00April 20th, 2016|

RF Measurements in the Cable Plant - Learn more about RF Episode 20 Hosted by Brady Volpe of the Volpe Firm and Nimble This. Guest John Downey, CMTS Technical Leader at Cisco Systems and special guest, Ron Hranac Technical Leader at Cisco Systems. Today’s show we will cover a number of topics including RF measurements and fundamentals. The discussion starts with basic building blocks of the sine wave and evolves to how QAM (quadrature amplitude modulation) signals are comprised of sine waves with varying amplitude and phase shifts, which means even though we call

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 01, 2016

May the Force be with Operational Challenges, Industry Trends, DOCSIS 3.1 and Star Wars

Mia Colabrese2021-08-16T20:24:54-04:00January 18th, 2016|

May the Force be with Operational Challenges, Industry Trends, DOCSIS 3.1 and Star Wars Episode 18 Hosted by Brady Volpe of the Volpe Firm and Nimble This. Guest John Downey, CMTS Technical Leader at Cisco Systems. Today we are going to focus on your questions and provide our answers. If we don’t have answers we promise to make up answers so convincingly true that you will never know the difference. Just kidding. DOCSIS 3.1 operational challenges. In the NEWS According to Cablelabs, The certification of five vendors marks the largest

14 12, 2015

Operational Challenges – DOCSIS CMTS Challenges to Operators

Mia Colabrese2021-08-17T08:04:36-04:00December 14th, 2015|

Operational Challenges in Cable - CMTS Challenges to Operators Episode 17 Hosted by Brady Volpe of the Volpe Firm and Nimble This. Guest John Downey and Steve William TWC Director, Access Network Planning, Design & Operations. Steve is also a huge supporter of the SCTE, having served as on a number of SCTE chapter and National board positions and is currently serving on our SCTE Board of Directors. Hello Steve and thanks so much for your support of the SCTE and to our industry. We will also cover operational challenges

5 10, 2015

CableLabs interop DOCSIS 3.1 Channel Bonding

Mia Colabrese2021-08-17T08:14:53-04:00October 5th, 2015|

CableLabs Interop, DOCSIS 3.1 Channel Bonding Episode 15 Hosted by Brady Volpe of the Volpe Firm and Nimble This, with Guest John Downey. Today we have news, updates from the CableLabs interop in Colorado, Max transmit power with 8 upstream DOCSIS 3.1 channel bonding, more on T3 timeout, partial mode oh my, T1 timeouts, my recommendations on ad blocking and more. In the NEWS SCTE Cable Tec Expo is less than two months away in New Orleans Apple's fourth-generation Apple TV will be available in late October. Hackers have stolen personal

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.