The Resilient Packet Ring Alliance said RPR reached a technical milestone after the 2.0 version of the draft standard was been approved for working group ballot.
Specifically, the IEEE 802.17 RPR working group approved the RPR standard for balloting, signifying that the draft is mature enough to justify taking a formal vote, the alliance said. Previously, the working group gathered and addressed comments, but no votes were taken. With the current ballot, working group members will approve or disapprove the 2.0 version of the draft. The working group ballot requires a 75 percent approval before moving ahead on the next stage, whereby a "broad community of [RPR] users and vendors" will review the draft. The sponsor ballot is expected in late spring next year, with final approval expected later in 2003, the alliance said.
RPR, a standard for metropolitan area networks, is a Layer 2 technology designed to take the best of Sonet and Ethernet to support carrier-class voice services and packet-based applications. RPR is also designed to cohabitate with existing Sonet and Ethernet physical layers.
Separately, Infineon Technologies upgraded its membership in the RPR Alliance to "principal" level, joining Cisco Systems, Corrigent Systems, Lantern Communications, Mindspeed Technologies and Nortel Networks.