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Dark Fiber - Verizon Performs Field Trials of XG-PON2 to Boost FiOS Network

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November 03, 2010

Verizon Performs Field Trials of XG-PON2 to Boost FiOS Network

By Mini Swamy
TMCnet Contributor

Verizon, adding to its never-ending list of firsts, has taken a leap into next-generation technology by positioning itself to deliver a 10 Gbps broadband connection symmetrically. This was made possible after it successfully completed the world's first field trial of XG-PON2 GPON FTTH.

In a previous trial, Verizon tested XG-PON1 technology from Huawei (News - Alert) and Motorola affirming its FiOS network design.XG-PON1 supports 10-Gbps transmission in the downstream direction only.

Although it used the same optical fiber that provides business with its existing FiOS network, this time it used a pre-standard XG-PON2 technology from Alcatel-Lucent (News - Alert). The trial didn't disrupt existing FiOS TV connections and business customers suffered no impairment to their data services, demonstrating its ability to employ both GPON and XG-PON2 signals over the same fiber.

 The optical network terminal unit placed at the business-customer location supported up to 10 single Gigabit Ethernet links, as well as one dedicated link capable of delivering the full 10-Gbps symmetric speeds to a single location. Two PCs, each having a 10-Gbps network interface card, were communicating across the network between the ONT and the line terminal equipment located in the Verizon (News - Alert) switching facility in Taunton. During the process of testing, there was a continuous transfer of 2-GB files, upstream and downstream, from 20 concurrent clients using commercial Web server applications. The purpose of this exercise was to demonstrate and simulate what business customers were likely to experience while performing file transfers from 20 clients simultaneously. This test demonstrated an application layer throughput of 9.1 Gbps, upstream and downstream.

Verizon tested the speed of downloads and uploads, and a 2.3 GB movie was downloaded and uploaded. It just took an average of four seconds to perform the task. This clearly indicated that the speeds were close 60X faster than the maximum speed with Cable's DOCSIS 3.0 technology and more than 20,000 times faster than what the average cable subscriber would experience. An additional test was done to transfer a 6.9-GB medical image file in 11 seconds. "As more businesses adopt FiOS (News - Alert), we are expecting new applications to drive our customers' upstream bandwidth usage on the wireline network," Vincent O'Byrne, Verizon director of technology, said, and added that while the bandwidth demand today was highly asymmetric, applications such as telemedicine, remote file storage and backups, video hosting, remote computing, and other cloud-based services, to name a few, will drive up the upstream bandwidth demand over Verizon's network. He further indicated that they would be leveraging the FiOS network capacity and positioning with next-generation technology that would be tremendously useful to customers in the near future. In a related news release, in order to meet the growing popularity of carrier Ethernet services as a business communications platform, Verizon Business (News - Alert) is expanding its managed services portfolio with the addition of global managed Ethernet. Now, multinational organizations can place Verizon Ethernet services in a managed network environment containing just those services, or in combination with other network services for a complete end-to-end, global managed network solution.

Mini Swamy is a contributing editor for TMCnet. To read more of her articles, please visit her columnist page.

Edited by Tammy Wolf
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