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RPR standard finalized

Mon, 06/21/2004 - 8:00pm
Jeff Baumgartner

Following reams of changes over the last few years, the IEEE 802.17 Resilient Packet Ring (RPR) standard has reached its final chapter.

The RPR Alliance announced approval of the standard by the IEEE 802.17 Working Group. The Alliance expects the IEEE Standards Board Review Committee to approve RPR Wednesday, the final "procedural step" in the standardization process.

The document, which carries the cumbersome title of "Part 17: Resilient Packet Ring (RPR) access method & physical layer specifications," will then be released for sale by the IEEE.

"The group has done a great job in getting broad industry participation," said Martin Green, vice president of marketing for the RPR Alliance and product manager at Cisco Systems.

Green said there likely won't be a certification process for RPR vendors, noting that most will simply comply with the standard and certify themselves. He added that most deployments based on pre-standard RPR equipment won't require a silicon change.

"We froze the technical set early," Green explained. "I've been pleasantly surprised. I thought [the lack of RPR standardization] would overhang the pre-standard market. It hasn't had the affect I thought it would. There's been good activity with pre-standard RPR."

Standard approval, however, will give vendors the green light to manufacturer RPR components in mass quantities, said Gady Rosenfeld, director of marketing and strategy at Corrigent Systems, another RPR Alliance member.

Cable operators and equipment suppliers have been exploring RPR technology in recent years. Scientific-Atlanta, for example, resells RPR gear from Luminous Networks under the Prisma brand. In April, C-COR.net did one better, inking a $20 million deal to buy RPR specialist Lantern Communications Inc.

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