[0] ADVISORY/LuxN Showcases Gigabit Ethernet Interoperability Across Networld+Interop 2000 Exhibit Hall.

News/Business Editors and High-Tech Writers

ADVISORY...for Friday (Sept. 22)

NetWorld Interop Atlanta 2000

NOTE TO MEDIA: Diagram is available in a Smart News Release(TM) on

Business Wire's Home Page at www.businesswire.com

--(BUSINESS WIRE)

      WHO: LuxN Inc. (www.luxn.com), the premier provider of
        intelligent, multi-service, optical access solutions.

          LuxN will showcase live, interactive demonstrations of its
        optical network access solutions at the Networld+Interop
        conference. LuxN's WavSystem(TM) solutions have set new
        standards for optical network access. With LuxN, local service
        providers and enterprise companies are now able to
        cost-effectively extend optical networks from metropolitan
        points of presence to enterprise customer premises. LuxN's
        solutions are available today and are being used by customers
        to experience the benefits of advanced optical-access
        technology. Offering a new vision of optical access, LuxN is
        providing the solutions for tomorrow's all-optical Internet.

      WHAT: LuxN, in conjunction with Riverstone Networks
        (www.riverstonenet.com), the leader in high-speed metropolitan
        area network infrastructure, will showcase live data being
        transmitted across the show floor through optical fiber at
        Gigabit Ethernet speeds.

          Using a multimedia video stream, traffic will originate at
        LuxN's booth (#7933), and be passed to a Riverstone RS 2000
        switch router. The Gigabit Ethernet data stream will then go
        to a LuxN WavStation(TM) for transport across the show floor
        using approximately 800 feet of single-mode optical fiber. In
        the Riverstone booth (#4531) the traffic will arrive at a LuxN
        WavFarer(TM), be passed to a Riverstone 8600 switch router and
        presented as a multimedia data stream on a video display.

          In addition, technical presentations of LuxN's ColorSIM(TM)
        network monitoring solution will be provided in LuxN's
        (invitation-only) Technology Suite. ColorSIM, integrated into
        LuxN's WavSystem line of optical access solutions, gives
        carriers and service providers the ability to continuously
        monitor each lambda of their network without the need for
        separate bit error rate testing equipment. It employs a
        unique, non-intrusive, "wrapperless" methodology that does not
        tap any portion of the optical power and is bit-rate and
        protocol independent.

      WHY: Service providers, as well as enterprise companies, are
        constantly faced with network challenges - the need for faster
        speeds, higher bandwidth, data integrity and more. By engaging
        an optical network, service providers can deliver new, high
        bandwidth, multi-protocol services while maximizing their
        optical fiber assets to generate new revenues. Enterprise
        end-users can dramatically upgrade their public network access
        performance while enjoying the advantages of using multiple
        communications protocols such as Fibre Channel, Gigabit
        Ethernet and/or SONET.

          In addition to providing unique monitoring capabilities
        without the need for separate test equipment, ColorSIM
        provides users the ability to forecast impending problems in
        their networks so that serious data transmission problems can
        be avoided. It promises to be an important tool for monitoring
        Quality of Service (QoS) agreements.

      WHEN: The Networld+Interop 2000 Conference will be held September
        26-28, 2000. The LuxN Optical Network demonstration will be
        shown live throughout the conference. Technical presentations
        and demonstrations of LuxN's ColorSIM will be shown by
        appointment only.

      WHERE: The Gigabit Ethernet Interoperability demonstration will be
        shown in LuxN's booth (#7933) and in Riverstone Networks'
        booth (#4531). Preview LuxN's ColorSIM network monitoring
        solution in the LuxN Technology Suite at the Omni Hotel,
        across from the show floor. The Networld+Interop 2000
        Conference will be held at the Georgia World Congress Center
        in Atlanta, Georgia. More information is available online at:
        http://www.key3media.com/interop/atlanta2000/.

      CONTACT: Contact Aurea DeFranco ([e-mail]) at
        408/246-1857 to schedule a detailed demonstration of ColorSIM
        in the LuxN Technology Suite. If you are unable to attend but
        would like to meet with LuxN, please call to set up an
        appointment.

          For more information on Riverstone Networks, contact Steve
        Garrison ([e-mail]) at 408/878-6433.

    Note: A diagram is available at URL:
    http://www.businesswire.com/cgi-bin/photo.cgi?pw.092200/bb1