Ciena Corporation (Ciena) is a provider of communications networking equipment, software and services that support the transport, switching, aggregation and management of voice, video and data traffic. The Company�s packet-optical transport, packet-optical switching and carrier Ethernet service delivery products are used, individually or as part of an integrated solution, in networks operated by communications service providers, cable operators, governments and enterprises globally. Its communications networking products, through their embedded software and its network management software suites enable network operators to deliver enterprise communication services. The Company operates in four segments: packet-optical transport, packet-optical switching, carrier Ethernet Service delivery, and software and services. On March 19, 2010, the Company acquired optical networking and Carrier Ethernet assets of Nortel�s Metro Ethernet Networks business (MEN Business).