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 from 1.5 Mbps to 45 Mbps, a 30x speedup at the time. One of the early customers of HSSI was @Home and NSFNet. In 1996, John co-founded 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 and the cBR-8, the third generation CMTS. 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. John has invented many of the fundamental DOCSIS features. • DOCSIS 1.0 - co-invented basic req-gnt access mechanism • DOCSIS 1.1 - UGS for VoIP, contributed to QoS, • DOCSIS 2.0 - DMPI, CM load balancing • DOCSIS 3.0 - bonding, virtual splitting and combining, • DOCSIS 3.1 - drove OFDM adoption, OFDM/OFDMA Profiles, PLC channel, DTP (DOCSIS Time Protocol) • DOCSIS 4.0 - FDX N+X (work started in 2014), • DSG - DOCSIS Settop box Gateway • Modular CMTS • Remote PHY • LLX - Low Latency Xhaul In 2007, John was promoted to a Cisco Fellow, in 2011 officially became CTO Cable Access and in 2020, John became CTO Broadband. John is a member of the SCTE Hall of Fame and the Cable TV Pioneers. John has three times received the Cisco Pioneering Technology Awards, holds over 140 patents issued and pending, and has published over 50 white papers. John was listed in CableFax 2021 and 2021 Top 100 Power Players. John is a 7th Degree Black Belt Master in Taekwondo, 5th degree in Hapkido, and a blue belt in Gracie Jui-Jitsu. John enjoys white water canoeing and skiing.