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Comcast demos 100G transport with Cisco

Thu, 06/26/2008 - 9:07am
Brian Santo

Comcast has successfully completed another 100 Gigabit Ethernet (GbE) technology test over its backbone between Philadelphia and McLean, Va., this time using the industry’s first 100GE router interface developed for the Cisco CRS-1 routing system.

In March, Comcast demonstrated the transmission of 10G, 40G and 100G transmission –also on the Philly-McLean trunk – using equipment supplied by Nortel (story here).

The Cisco CRS-1 100GE interface uses Comcast’s existing optical infrastructure to enable the transmission of 100GE over DWDM fiber optic networks. Using this type of technology will enable companies, like Comcast, to increase bandwidth per wavelength by a factor of 10 over the initial deployed capability, according to Comcast.  

It also creates efficiencies by simplifying routing and operations through the use of statistically multiplexed 100GE links, in comparison to carrying the same amount of traffic split over more commonly used 10GE links.

“This demonstration is another important step in the future of 100GE networking, and we’re pleased with Cisco’s latest advancements,” said John Schanz, EVP of national engineering and technical operations for Comcast Cable. “Comcast’s single converged core IP network already carries more video, voice and data traffic than any other, and this new achievement will allow us to scale for tomorrow, while continuing to drive capital and operational efficiencies today.”

“The Cisco CRS-1 was purpose-built to deal with the exploding growth in IP traffic that has been fueled by video-based services,” said Kelly Ahuja, Cisco’s VP and GM of the core routing business unit. “By developing a 100GE interface for the Cisco CRS-1 platform, providers like Comcast can take advantage of economies of scale, flexibility and increase the quality of service delivery as they move towards 100G IPoDWDM networks.”

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• Comcast demos 100G transport with Cisco

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