CIENA TO DEMONSTRATE LIGHTWORKS SERVICES AT SUPERCOMM 2003

Company to Show Cost-Saving Benefits of its Network Solutions

Linthicum, MD — 05/27/2003

Ciena® Corporation (NASDAQ: CIEN), a leading provider of global network solutions, today announced that visitors to its SUPERCOMM 2003 booth (#10641) will see demonstrations that highlight Ciena’s portfolio of innovative network solutions that help carriers use their existing network infrastructure to increase the efficiency of current services and to create new revenue-generating opportunities. In addition, Ciena will highlight the expected network benefits of the Company’s pending merger with WaveSmith Networks® and existing partnership with Équipe Communications™. Ciena also will host Optical University seminars to discuss the next phase of network evolution with a focus on improving network economics.

SUPERCOMM 2003, the premier annual communications infrastructure exhibition and conference, will take place at Atlanta’s Georgia World Congress Center from June 1-5, with Ciena’s demonstrations being held from June 3-5. The exhibition hours are Tuesday, June 3 from 9:00 a.m. - 5:00 p.m.; Wednesday, June 4 from 9:00 a.m. - 5:00 p.m.; and Thursday, June 5 from 9:00 a.m. - 3:00 p.m.

Ciena will hold several network and services demonstrations in Booth #10641, including those showcasing interoperability between Ciena, WaveSmith and Équipe products working within Ciena’s LightWorks™ architecture. Scheduled demonstrations include:

  • End-to-end provisioning of an OC-12/STM-4 circuit from the LightWorks ON-Center® Network Management Suite across the WaveSmith DN 4100®, ONLINE Edge™, ONLINE Metro™, Équipe 3200™, CoreDirector® and CoreStream™ platforms and back to the WaveSmith DN 4100.
  • Service Level Agreement (SLA) management of an OC-48/STM-16 circuit from the LightWorks Service Level Manager across the ONLINE Edge, ONLINE Metro, CoreDirector, CoreStream and back to the ONLINE Edge.
  • 10/100 Ethernet transported across the WaveSmith DN 7100™, ONLINE Edge, ONLINE Metro, Équipe 3200, CoreDirector, CoreStream and terminated on MetroDirector K2™ 10/100 Ethernet.
  • ONLINE Edge Storage Area Network (SAN) extension transporting Fibre Channel traffic across the CoreStream long-haul DWDM system.
  • WaveSmith ATM Private Network-to-Network Interface (PNNI) and ATM/MPLS functionality interworking with the Équipe 3200 platform as well as Label Switch Routing across the Équipe 3200 MPLS core.
  • LightWorks ON-Designer network planning tool for the ONLINE Edge, ONLINE Metro, CoreDirector, MultiWave Metro®, MultiWave Sentry® and CoreStream products.

Optical University

Ciena is proud to once again offer its Optical University series of seminars at its SUPERCOMM 2003 booth to help service providers and their customers understand the evolution of next-generation networks as the demand increases for advanced data services. Among the speakers scheduled to present are Roger Gallagher, director, transmission for Ciena customer BT, Todd Patterson, product development leader for Ciena customer Progress Telecom, Steve Alexander, senior vice president and CTO for Ciena and Joseph Berthold, vice president of network architecture for Ciena and president of the Optical Internetworking Forum.


About Ciena

Ciena Corporation delivers innovative network solutions to the world's largest service providers, increasing the cost-efficiency of current services while enabling the creation of new carrier-class data services built upon the existing network infrastructure. Additional information about Ciena can be found at www.ciena.com.
About WaveSmith Networks

WaveSmith Networks® was founded in March of 2000 to redefine multiservice switching. Its approach empowers carriers to cap their investments in aging technology while they begin deploying next-generation platforms. In this way, WaveSmith embraces carriers’ near-term, tactical requirements as well as their strategic vision. The WaveSmith Distributed Node™ (DN) multiservice switch platform is the first product line designed from the ground up to sustain and leverage today's Layer 2 infrastructure with an evolutionary path to future technologies. For more information, visit WaveSmith at www.wavesmithnetworks.com.

About Équipe Communications

Équipe Communications™ is building the only true next-generation ATM/MPLS multiservice core switch specifically designed for large-scale service providers. It is the most cost effective, high availability solution for scaling layer 2 services, transitioning from ATM to MPLS, and driving reductions in operations costs through integration with intelligent optical networks. For more information, visit www.equipecom.com

Note to Investors

This press release contains certain forward-looking statements based on current expectations, forecasts and assumptions of Ciena (the Company) that involve risks and uncertainties. Forward-looking statements in this release, including, but not limited to, Ciena’s intended product demonstrations and interoperability with WaveSmith and Équipe products, and the expected speakers at Optical University, are based on information available to the Company as of the date hereof. The Company’s actual results could differ materially from those stated or implied in such forward-looking statements, due to risks and uncertainties associated with the Company’s business, which include the risk factors disclosed in the Company’s Report on Form 10-Q filed with the Securities and Exchange Commission on May 22, 2003. Forward looking statements include statements regarding the Company’s expectations, beliefs, intentions or strategies regarding the future and can be identified by forward looking words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “should,” “will,” and “would” or similar words. The Company assumes no obligation to update the information included in this press release, whether as a result of new information, future events or otherwise.

Press Contacts:
Nicole Anderson
Ciena Corporation
(877) 857 -7377
pr@ciena.com
Investor Contacts:
Marie Downing
Ciena Corporation
(888) 243-6223
ir@ciena.com