Tuesday, October 23, 2018

Cisco Introduces Full-Duplex Ready Technology for Cable Broadband; Same Upload/Download Speeds

Cisco is helping cable operators get ready to finally end the wide speed disparity between upload and download speeds offered by most cable operators.

As cable operators continue to upgrade their cable systems to support DOCSIS 3.1 technology that makes it much easier to offer gigabit broadband speeds, Cisco is introducing the industry’s first “Full Duplex-Ready” GS7000 FDXi neighborhood node. It is an intelligent, remotely programmable piece of equipment that divides up broadband service to a number of households in a neighborhood. But unlike previous models, this one can offer customers the same upload and download speeds. Since the earliest days of cable modem technology, most bandwidth has been reserved for downloading, giving customers only a fraction of available speed for uploading content.

Cisco promises cable operators can provision its newest offering to deliver Full Duplex service in as little as two minutes. The equipment is expected to undergo field trials as early as this fall with sales widely expected to begin in early 2019.

Comcast reports it is already testing its own new network configuration combining Distributed Access Architecture with Full Duplex.

With remote surveillance cameras, video teleconferencing and virtual reality applications beginning to use significant amounts of upload bandwidth, cable operators expect an upswing in upstream traffic on their networks.

Comcast’s Robert Howald told attendees at a pre-SCTE Cable-Tec Expo event that the cable operator “wants to go symmetrical,” which means offering customers the same upload and download speeds. To manage this, Comcast needs to eliminate a large percentage of copper coaxial cable from its network and replace it with fiber, something the company has gradually been doing over the past few years. Comcast may be positioned to bring Full Duplex online earlier than many other cable operators because of its ongoing effort to push fiber optics closer to its customers.

Other cable operators, particularly smaller ones, may have a long way to go to be Full Duplex ready at high internet speeds. Some, like Altice’s Cablevision, have chosen to scrap traditional hybrid fiber-coax technology entirely, going all-fiber straight to the home. Other operators are hoping customers are not quite ready to demand identical upload and download speeds, and believe faster download speeds will satisfy customers for at least the next 5-10 years. If they are wrong, competitors offering fiber service could steal a lot of their business sooner than they think.

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