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Ciena Corporation is a global manufacturer of communications network equipment and solutions with expertise in Packet-Optical Transport Packet-Optical Switching Carrier Ethernet and Network Support Services.Many of the world's largest carriers and service providers have deployed Ciena solutions in their network; including AT&T BT Cable & Wireless CenturyLink Comcast France Telecom Korea Telecom Sprint Reliance Southern Cross Tata Communications Telecom Argentina Telmex Virgin Media and Verizon.Ciena also counts numerous national research and education networks as customers as well as enterprises in the healthcare finance transportation and retail industries for real-time latency sensitive applications such as disaster recovery/business continuity SAN/LAN extension data center consolidation and grid computing.We specialize in helping customers transition to service driven networks that fundamentally change the way they compete. With expertise in optical and Ethernet networking Ciena combines software-programmable hardware a common operating system and unified service and transport management to enable our customers to adapt and scale with any emergent business model.