John Downey

Sr. CMTS Technical Leader

Cable Access Business Unit

John Downey joined Cisco as a Broadband Network Engineer in November 2000. He achieved Cisco Certified Network Associate (CCNA) and Cable Specialist certifications. His global support of DOCSIS and HFC systems has led to a vast knowledge of different architectures and troubleshooting skills. John is listed on a patent for a CMTS feature called RF Adapt, which monitors per-CM MER and FEC counters to determine when to move to a new logical upstream channel with more robust settings. This functionality was also implemented in the DOCSIS 3.0 Upstream Bonding Partial Mode feature. His technical articles have been widely published in various trade magazines including, Communications Technology (CT), Broadband Systems & Design, and CED Magazine. John and Brady Volpe also deliver a monthly Google Handout (podcast) on “Everything DOCSIS.” Prior to Cisco, John was the Broadband Training Manager of Acterna’s Multimedia Division in Indianapolis, Indiana. He earned his B.S. in Electrical Engineering from Pennsylvania State University in 1990, and has been an active SCTE member since 1996. On a personal note, John is an active bodybuilder with his pro card in natural bodybuilding. He used to coach his son’s Challenge soccer team for many years and enjoys the outdoors. He and his wife, Melanie, have two children and four grandsons.


September 29, 2020


What is the Intersection of Drag Racing, Weather Spotting and Remote PHY?

6 min read

Today's blog features an interview with John Downey, Senior CMTS Technical Leader, and Ron Hranac, Technical Marketing Engineer, both with the Cisco Cable Access Business Unit, for a look at this year's virtual Cable-Tec Expo.

How to Manage Cable Network Traffic Congestion

2 min read

With unprecedented demand facing local broadband networks, operators can alleviate and mitigate both congestion and capacity issues before they happen on cable operator DOCSIS plants.