Cisco Eyes Bonding at National Show


Cisco Systems Inc. plans to showcase a broad product array -- ranging from voice-over-Internet-protocol and home-networking applications to digital-video-transport gear -- at next week’s National Show in San Francisco.

But its wideband, channel-bonding product -- part of Cisco’s next-generation network IP-centric view of the world -- may get the most attention.

With channel bonding, operators expand the number of quadrature-amplitude-modulation channels devoted to high-speed-data applications. “We take a fat pipe and make it fatter,” said John Mattson, director of cable marketing for the broadband-edge and midrange-routing business unit at Cisco.

“With channel bonding, you put multiple QAM channels together and strip the data across all of those channels,” he said. “You can bundle 2-24 channels together across a CMTS [cable-modem termination system]. Instead of 38 megabits in a single QAM, you get 912 megabits, which is 24 QAM channels.”

This would allow operators to offer 50 mbps or even 100 mbps to the home.

International cable operators are looking at wideband. Closer to home, some domestic MSOs are also eyeing the product, Mattson said, especially those staring at the prospects of Verizon Communications’ fiber-to-the-premises platforms -- which promise to deliver 30-mbps service -- competing in their services areas.

Channel bonding is being discussed as part of the next-generation Data Over Cable Service Interface Specification 3.0 standards work under way at Cable Television Laboratories Inc., Mattson said. Current Cisco equipment could be configured to handle wideband DOCSIS gear.

For more on Cisco’s channel bonding, please see Matt Stump’s story on page 69 of Monday’s issue of Multichannel News.