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CIENA and Juniper Networks Demonstrate Interoperability

February 23, 1999

Next-generation Network Architecture Exhibited at OFC, Booth #901

Linthicum, MD and Mountain View, CA - February 23, 1999 — CIENA Corporation (Nasdaq:CIEN) and Juniper Networks, Inc., provider of the industry-leading M40 Internet backbone router, today announced successful interoperability testing between Juniper Networks M40 router and CIENA's MultiWave Sentry® dense wavelength division multiplexing (DWDM) optical networking system.

The announcement demonstrates the direct connectivity of Juniper Networks and CIENA's equipment and showcases the availability of an integrated Internet Protocol (IP)-to-DWDM solution that dramatically simplifies IP packet transmission via a MultiWave® optical core.

"Competitive carriers and Internet Service Providers (ISPs) searching for better alternatives to legacy network architectures will find the results of our interoperability testing with Juniper compelling," said Steve Chaddick, CIENA's senior vice president, strategy and corporate development. "The capacity, reliability and flexibility of a network built with Juniper Networks M40 routers on a CIENA MultiWave optical core offers significant bandwidth and service flexibility."

Testing between CIENA and Juniper Networks utilized cross- continent IP to DWDM network topologies. The evaluation also demonstrated the M40's ability to meet the stringent jitter measurements required by the Bellcore GR 253 standard by successfully passing jitter-free packets continuously using the MultiWave Sentry system.

"The phenomenal growth of Internet traffic is driving ISPs to evaluate transmission needs in their architectural planning," stated Dana Cooperson, senior analyst with telecommunications market analysis firm RHK. "Successful interoperability testing between Juniper Networks and CIENA demonstrates the feasibility of Internet architectures based on direct optical transport of IP traffic without intervening layers. This testing provides evidence to ISPs that they can simplify and cost-reduce their networks while maintaining reliability."

The industry's first wirespeed OC-48 router capable of optical forwarding rates of 40 gigabits per second, Juniper Networks M40 Router passed wire-rate OC-48 traffic absolutely error free through 12,000 Km of fiber (that is, 24 spans of 500 Kms each) via a MultiWave optical network. The M40 OC-48 optical interface used standard default settings and required no regenerators or external clock distribution systems to handle the link, thus proving that large IP-to-DWDM topologies using CIENA and Juniper Networks equipment are easily achievable today.

"Optical service providers are demanding backbone routers that scale with network growth and provide simple IP-over-glass connectivity," said Joe Furgerson, vice president of marketing for Juniper Networks. "We designed the M40 Router to provide both full wire rate performance at OC-48 at Layer 3 and to be seamlessly interoperable with a leading optical networking equipment vendor like CIENA, with strict adherence to the optical standards demanded for long-haul networks."

Juniper Networks M40 wire speed-performance backbone router began shipping in volume last year. The M40 processes 40 million packets per second (Mpps), delivering the fastest backbone routing performance today. Unmatched port density from DS3 to OC-48, coupled with JUNOS Internet software, provide the first routing system designed specifically to meet the needs of rapidly growing IP-based high-speed optical service providers.

OFC Demonstration

CIENA and Juniper will be showcasing their products in CIENA's booth #901 at the Optical Fiber Communications (OFC) Conference in San Diego, February 22 through 26.


Based in Linthicum, Maryland, CIENA Corporation is a market leader of open architecture, optical networking systems that form the core of telecommunications networks worldwide. CIENA's networking solutions utilize bandwidth expanding dense wavelength division multiplexing (DWDM) technology and include the MultiWave® 1600 long-haul transport system, WaveWatcher® network management software, the MultiWave Optical Add/Drop Multiplexer, the MultiWave Sentry&#8482 enhanced long-distance transport system and the new MultiWave® Firefly and MultiWave Metro&#8482 short-haul systems. Through its CIENA Services subsidiary, CIENA provides a range of engineering, furnishing and installation (EF&I) services for telecommunications service providers in the areas of transport, switching and wireless communications.

Additional information about CIENA can be found on its World Wide Web site:

About Juniper Networks, Inc.

Juniper Networks is the leading provider of the new generation of high-speed IP infrastructure platforms that meet the scalability, performance, density and compatibility requirements of rapidly evolving optically-enabled IP based networks. Using the breakthrough JUNOS software, ASICs, and wire-rate performance of the company's flagship M40 router, Juniper Networks enables new IP, content and broadband access service providers to maintain a competitive advantage by growing their businesses rapidly through new IP service delivery. The M40 is deployed in the world's largest and fastest Internet networks.

The M40 router is supported by Juniper Networks world-class service, support and manufacturing teams and Internet experts. The company is headquartered in Sunnyvale, California*. For more information on Juniper Networks, please contact the company at 408-745-2000 or visit their Web site at


Susan Ursch
Juniper Networks
Phone: 978-589-0124

Denny Bilter or Aaron Graham
CIENA Corporation
Phone: 877-857-7377

Suzanne DuLong
CIENA Corporation
Phone: 888-243-6223



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