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John Chapman

Cisco Fellow & CTO

Cisco’s Cable Access Unit

John began his electronics career in high school when he built an AM tube radio receiver and transmitter. This led him to study Electrical Engineering at the University of Alberta in Canada. After graduating, John moved to California's Silicon Valley and designed European analog line and trunk cards for ROLM.

After ROLM was bought by IBM and sold to Siemens, John joined a small, private start-up company in Silicon Valley called Cisco. The year was 1989, the Internet was still emerging, routers were unknown, the Internet backbone ran on T1 lines and it was five years before the netscape browser.

John designed the HSSI (High Speed Serial Interface) Wide Area Network interface. When HSSI was deployed, it allowed the Internet backbone to move to 45 Mbps, a 30x speedup at the time. One of the early customers of HSSI was @Home.

In 1996, John help to found the CMTS group at Cisco with a handful of engineers who had been with Cisco since its early days and were yearning to do an internal start-up at Cisco. John architected the uBR7246, the industry's first DOCSIS CMTS.

Since then, John has been instrumental in the development of DOCSIS. John added in many of the voice features of DOCSIS 1.1. He invented DSG, the DOCSIS Set-top Box Gateway protocol. John developed the Modular CMTS architecture and wrote the DEPI specification. He originated the principles for bonding multiple DOCSIS channels together to create a wideband channel that was the basis for DOCSIS 3.0. John has consistently presented at SCTE over the years on a number of important issues to the cable industry, and enjoys working closely with the cable operators on driving DOCSIS to the next level.

In 2007, John was promoted to a Cisco Fellow, the top engineering position in Cisco, and was named CTO of the Cable Access Business Unit a few years later. John has twice received the Cisco Pioneering Technology Awards and holds over 80 patents issued and pending, with the majority of those patents focused on DOCSIS and cable technology.

He is a 6th Degree Black Belt Master in Taekwondo and enjoys white water canoeing and skiing. In his spare time, John enjoys spending time with his two girls Mikayla and Shayna.

Articles

September 26, 2019

SP360: SERVICE PROVIDER

Mobile Xhaul Over DOCSIS Delivers Faster Time to Market at a Lower Cost Than Building a New Fiber Plant

Every time a new smartphone comes on the market, I ask myself, should I buy it or not?  It has cool new features, but my current model does everything I need.  Do I really want to spend more money and replace my existing hardware? But, I really like the cool new features. It’s a dilemma. What if the…

5G, 10G, Whatever It Takes

The headline refers, of course, to a favorite scene from “Mr. Mom,” when Michael Keaton’s character, Jack, grabs a chainsaw (which is running) and dons safety glasses as his wife’s boss, Ron, shows up to pick her up for work. Jack turns the chainsaw off, then relays his plan to put on an addition, i…

Remote PHY for Infrastructure Automation: Why It Matters and Where It’s Headed

Occasionally, when in the middle of a vast and highly complex architectural transition, it makes sense to pull up and survey the situation. This is one of those times. As the trigger, the gathering of like-minded IP technologists present at this week’s ANGA conference, in Cologne; as the situation,…

A DOCSIS 3.1 Update: Musings From a Guy Who’s Been DOCSIS Since Before There Was Such a Thing

Greetings, colleagues, and especially those of you headed to the ANGA conference in Cologne next week. I’m expecting there will be considerable discussion about current events in broadband, and as such thought I’d impart my latest thinking on one of my favorite topics – the Data Over Cable Service I…

October 18, 2017

SP360: SERVICE PROVIDER

So You’re Building Out Your Mobile Footprint …

As more and more cable service providers forge MVNO partnerships with mobile carriers, or build their own MNO-styled networks, the time has come to start solving mobile backhaul problems — and especially the backhaul latencies required by LTE networks — by expanding the DOCSIS specificat…