Press Release

Laurel Networks Participates in MPLS Interoperability Testing
at NetWorld+Interop Las Vegas 2002

Demonstrates MPLS VPN Interoperability at iLabs

Pittsburgh, PA - May 6, 2002 - Laurel Networks, Inc., the first provider of high-performance service edge routers, today announced its participation in the Multiprotocol Label Switching (MPLS) area of the InteropNet Labs (iLabs) at NetWorld+Interop Las Vegas from May 7th - 9th.

This is Laurel Networks' third consecutive participation in iLabs with its ST200™ Service Edge Router, which is currently deployed in production networks within the U.S. and Europe. Laurel will join a number of service provider equipment vendors in interoperability demonstrations focusing on MPLS Layer 2 VPNs (based on IETF Draft Martini) for transporting ATM, Frame Relay and Ethernet traffic as well as IP VPNs (based on RFC2547bis).

The iLabs is NetWorld+Interop's test bed addressing advanced protocol development and vendor interoperability. It has been instrumental in the development of MPLS, Session Initiation Protocol (SIP) and H.323 interoperability, as well as supporting development within the Internet Protocol version 6 (IPv6), 1000BASE TX, IP Multicast and VPN technologies.

"Service providers are increasingly adopting MPLS-based services, including MPLS-based VPNs such as those offered on the ST200," said Steve Vogelsang, vice president of marketing and co-founder of Laurel Networks. "The iLabs highlights the broad vendor support and interoperability of MPLS technology as well as the depth of features on the ST200 Service Edge Router."

"The iLabs showcases the latest innovations in networking," said Eduardo Pinheiro, technical program manager for NetWorld+Interop. "The iLabs MPLS interoperability demonstration provides Interop attendees a rare opportunity to see the latest technology being used by the world's largest service providers, in a multi-vendor environment."

For more information about NetWorld+Interop, contact Jennifer Clark, public relations manager, at 650-372-6765 or jennifer.clark@key3media.com. Additional up-to-date NetWorld+Interop information is available at www.interop.com.

About the ST200 Service Edge Router

The ST200 is custom-designed for service edge routing, with a powerful combination of industry-leading density, high-speed routing and service-enabling features that add value to network bandwidth. Deployed at the edge of an IP/MPLS service provider backbone, the ST200 enables an infrastructure that supports high-value, scalable IP services, maximizing revenue and driving down the overall cost of bandwidth. The innovative ST200 system architecture is edge-optimized with all major routing and forwarding functions distributed throughout the system to meet the significant per-customer delivery and billing requirements of scalable edge services.

About Laurel Networks

Laurel Networks is the first provider of high-performance service edge routers designed and developed specifically for the edge of IP/MPLS networks. Laurel's flagship ST200 Service Edge Router includes the features required to deliver high-value IP services, including: high-capacity routing and switching; rich bandwidth management functionality; and high-density, multi-service ports. Laurel Networks was founded in 1999 and is headquartered in Pittsburgh, Pennsylvania. For more information, visit www.laurelnetworks.com.

About NetWorld+Interop:

NetWorld+Interop provides networking, Internet and telecommunications professional buyers with a uniquely comprehensive forum for education and hands-on products and services in order to make critical purchase decisions. NetWorld+Interop affords buyers from enterprises, carrier/service providers, and resellers/integrators the opportunity to experience live technology demonstrations firsthand. It's this focus on advanced, MultiFinder, multiprotocol, multi-service interoperability technologies and solutions that make NetWorld+Interop the definitive networking event.

About Key3Media

NetWorld+Interop is a Key3Media event. Key3Media Group, Inc., is the world's leading producer of information technology tradeshows and conferences, serving more than 6,000 exhibiting companies and 1.5 million attendees through 60 events in 18 countries. Key3Media's products range from the IT industry's largest exhibitions such as COMDEX and NetWorld+Interop to highly focused events featuring renowned educational programs, custom seminars and specialized vendor marketing programs. For more information about Key3Media, visit www.key3media.com.

Certain matters discussed in this release are "forward-looking statements," including statements about Key3Media's future results, plans and goals and other events which have not yet occurred. These statements are to qualify for the safe harbors from liability provided by the Private Securities Litigation Reform Act of 1995. You can find many (but not all) of these statements by looking for words like "will", "may", "believes", "expects", "anticipates", "plans" and "estimates" and for similar expressions. Because forward-looking statements involve risks and uncertainties, there are many factors that could cause Key3Media's actual results to differ materially from those expressed or implied in this release. These include, but are not limited to, economic conditions generally and in the information technology industry in particular; the timing of Key3Media's events and their popularity with exhibitors, sponsors and attendees; technological changes and developments; intellectual property rights; competition; capital expenditures; and factors impacting Key3Media's international operations. In addition, the sections entitled "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in the Prospectus Supplement dated June 22, 2001 that Key3Media filed with the SEC under rule 424(b) and the section entitled "Item 1. Business - Certain Factors that May Affect Our Business" in the Annual Report for the year ended December 31, 2000 on Form 10-k (File No. 001-16061) filed by Key3Media with the SEC contain important cautionary statements and discuss many of the factors that could materially affect the accuracy of Key3Media's forward-looking statements and/or adversely affect its business, results of operations and financial position, which statements and factors are incorporated herein by reference. Key3Media does not plan to update any forward-looking statements.