Broadband Archives

2 03, 2017

DOCSIS 3.1 – CCAP and Cable Modems the New Rock Stars in Test

Mia Colabrese2021-11-24T09:38:45-05:00March 2nd, 2017|

DOCSIS 3.1 - BOOM - Drop the Mic. CCAP and Cable Modems the New Rock Stars in Test We have always known that DOCSIS rocks but it is just so much cooler than we all thought. In the Winter edition of Broadband Library, I talked about how DOCSIS® 3.1 were beating expectations and performing exceptionally well in production environments. In this article, I want to focus on how the DOCSIS 3.1 specification outlines the test side, which enables operators to maintain deployed systems. Yes, you read that right,

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

19 12, 2016

DOCSIS 3.1 Beating Expectations, Working and Ready for Service Now

Mia Colabrese2016-12-19T11:18:36-05:00December 19th, 2016|

DOCSIS 3.1 Beating Expectations, Working and Ready for Service Now At this years SCTE Cable Tec Expo, several large MSOs, such as Comcast, made statements that DOCSIS 3.1 is working and it is working with great results. Only the downstream OFDM (orthogonal frequency division multiplexing) portion is currently supported in DOCSIS 3.1 CMTSs. Upstream OFDMA (orthogonal frequency division multiple access) is supported in the CPE side (aka cable modems), but only one CMTS vendor has support for upstream OFDMA. This is really not considered a show stopper, however.

12 09, 2016

Proactive Network Maintenance (PNM) with Larry Wolcott, Leader at Comcast’s Next Gen Technology Group

Mia Colabrese2021-08-16T19:52:13-04:00September 12th, 2016|

Proactive Network Maintenance (PNM) with Larry Wolcott, Leader at Comcast’s Next Gen Operations Technology Group Episode 23 Hosted by Brady Volpe of the Volpe Firm, this podcast will focus on Proactive Network Maintenance (PNM) and the next generation in technology in 2016 and a peak of what is to come in 2017. Guest John Downey, CMTS Technical Leader at Cisco Systems. Special Guest Larry Wolcott, Leader at Comcast’s Next Gen Operations Technology Group. Proactive Network Maintenance (PNM) Transcription So in our show today we going to have a lot of discussions around proactive

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

30 08, 2016

Comcast Larry Wolcott Get’s His Tech On PNM 3.0 – Advances 2016 & Expectations 2017

Mia Colabrese2022-01-07T11:38:13-05:00August 30th, 2016|

Comcast Larry Wolcott Discusses PNM This video and podcast with host Brady Volpe and guests Larry Wolcott and John Downey feature Comcast Larry Wolcott Discusses PNM and Advances in Technology 2016 Advances in PNM Technology What to expect in 2017 Find out the exciting new industry happenings when it comes to PNM (Proactive Network Maintenance). Larry Wolcott of Comcast will be joining Brady and John to PNM. Larry has been heavily involved with PNM via Comcast and a leader in the industry when it comes to championing and

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

26 05, 2016

DOCSIS 3.1 Clearing Up Misconceptions

Mia Colabrese2021-08-16T20:10:13-04:00May 26th, 2016|

DOCSIS 3.1 Clearing Up Misconceptions with DOCSIS 3.1 Spectrum Allocation Episode 21 Hosted by Brady Volpe of the Volpe Firm and Nimble This, with guest John Downey, CMTS Technical Leader at Cisco Systems. Today’s show we will cover DOCSIS 3.1 spectrum allocation, applications and deployment in existing cable plants. No changes in the existing plants are necessary! What Cable Operators need to know. In addition, ANGACOM presentation preview by both John Downey and Brady Volpe who will be presenting at ANGACOM this year. Find out what they will be covering.

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