The Future of IP Video and DOCSIS: John Chapman, Part Two
John Chapman, Cisco Fellow and Chief Architect, discusses the viability of DOCSIS 3.0 versus all-fiber implementations, in this Part 2 interview from the floor of The Cable Show in Los Angeles.
What’s a better roadmap: DOCSIS or all-fiber? It’s a complicated debate. Our view is that the wide-ranging cable modem specification known as DOCSIS will continue to be foundational to advanced IP services.
Ultimately, the progression goes like this: Today’s DOCSIS-based cable modems are capable of 10’s of megabits per second (Mbps), in residential broadband services. DOCSIS 3.0 expands that range to hundreds of Mbps. Laboratory experimentation at Cisco suggests that a Gigabit per second DOCSIS offering is entirely feasible.
What might one do with gigabits per second worth of bandwidth? Video, HD video, 3D video, and TelePresence/video conferencing applications are all good examples. So, as far as we can see, DOCSIS contains plenty of breathing room for a video-heavy future.