Ciena to Highlight New Products, Key Applications and Professional Services for Flexible, Service-Oriented Networks at SUPERCOMM; Company Also Participating in Second OIF Worldwide Interoperability Demo

Business Wire, May 31, 2005

LINTHICUM, Md. -- Ciena(R) Corporation (NASDAQ:CIEN), the network specialist, today announced that visitors to its SUPERCOMM 2005 booth (#22039) will see demonstrations of the Company's platforms that enable flexible, service-oriented networks, including solutions targeted at the worldwide TDM-to-packet migration, carrier-class Ethernet services, flexible transport and switching, and professional services. Ciena will also take part in the Optical Internetworking Forum's (OIF) second Worldwide Interoperability Demonstration.

Ciena will showcase the service-enabling capabilities of its product line, including new products and features that support telco, cable, government and enterprise customer networks. In particular, Ciena will highlight its recently announced FlexSelect(TM) Architecture, a software-first approach to network convergence that combines programmable hardware with service-oriented management functionality - automating delivery and management of any mix of services. In addition, Ciena will demonstrate its new CN 4200(TM) FlexSelect Advanced Services Platform, the first multiservice transport and service aggregation platform to enable a flexible, cost-effective transition from TDM to service-selectable packet networks.

Ciena's booth will emphasize the Company's:

--Transport Solutions - Ciena provides service-oriented flexibility for the profitable delivery of innovative services through its FlexSelect Architecture. Ciena's transport solutions include long-haul and ultra-long haul, flexible metro transport, DWDM, CWDM and Ethernet transport, service management and intelligent networking.

--Data Applications - Ciena provides profitable, reliable and scalable data networking for wireless and wireline applications, including layer 2 and layer 3 VPNs, Ethernet service interworking, carrier Ethernet MAN/WAN services, IP/MPLS migration, broadband aggregation and wireless backhaul.

--Broadband Access Solutions - Ciena offers expertise in broadband migration for performance and cost advantage, including legacy DSL upgrade, UNE-L migration and TDM-to-VoIP migration solutions.

--Enterprise and Government Solutions - Ciena enables time-sensitive, bandwidth-intensive and mission-critical applications across distributed environments through its Adaptive WAN -- a wide area network solution that optimizes and switches traffic at the lowest possible layer, providing maximum throughput and the lowest latency across multi-site organizations for applications such as networked remote storage, Web services and grid computing.

--Global Network Services - Ciena offers a wide range of cost-effective professional services and a consultative approach to maximize opportunities in the market. Ciena's specialists provide project management services, managed network services, multi-vendor services, network design and integration services and UNE-L migration services.

In addition, Ciena, a founding member of OIF, will demonstrate its continued leadership in network automation and control plane technologies in a demonstration involving 13 equipment vendors and seven leading global carriers. The event, conducted simultaneously in China, Japan, Germany, Italy, France and the United States, will highlight network interoperable solutions among the participating vendors employing OIF implementation agreements in a multi-carrier environment. Ciena's CoreDirector(R) Multiservice Optical Switch will be tested on Optical UNI 2.0, E-NNI, GFP and VCAT interoperability, while Ciena's CN 3600(TM) Intelligent Optical Multiservice Switch will continue VLAN testing, which began in April.

SUPERCOMM 2005, the world's largest annual exhibition and conference for communication service providers and private network managers, will be held June 6-9 at McCormick Place in Chicago.

ABOUT CIENA

Ciena Corporation is the network specialist, focused on expanding the possibilities for its customers' networks while reducing their cost of ownership. The company's systems, software and services target and cure specific network pain points so that telcos, cable operators, governments and enterprises can best exploit the new applications that are driving their businesses forward. For more information, visit www.ciena.com.

ABOUT OIF'S WORLD INTEROPERABILITY DEMONSTRATION 2005

The Optical Internetworking Forum (OIF) is sponsoring the industry's second international joint carrier, multi-vendor optical networking interoperability demonstration. The event, conducted simultaneously in China, Japan, Germany, Italy, France and the United States will highlight network interoperable solutions among the participating vendors employing OIF implementation agreements in a multi-carrier environment. The global interoperability event will include testing of User Network Interface / UNI 2.0 Ethernet over multiple SONET / SDH transport networks interconnected by control plane External Network-Network-Interfaces / E-NNI. An overview of the event will be on display June 7-9 at SUPERCOMM 2005 in Chicago, OIF Booth #50094. Additional information can be found at http://www.oiforum.com.