Press Release

InfoVista to License NETWORK HARMONi Products

InfoVista Will License NETWORK HARMONi Agent Technology to Support Service Level Agreements, Network and Application Performance Monitoring

SAN DIEGO, CA - April 24, 2001 -- NETWORK HARMONi, Inc. (NHI), an enterprise performance monitoring software developer, today announced a strategic OEM licensing agreement with InfoVista (NASDAQ: IVTA), a global provider off advanced software which monitors, analyzes and reports on the performance and quality of services of information technology infrastructure, (ITI), including networks, servers and applications. As a part of the agreement, InfoVista will license NHI's software products and embed the intelligent agent technology into its SLA reporting and proactive management solutions ( VistaViews ), giving InfoVista's customers accurate and reliable data for monitoring and managing service level agreements, networks, host systems and application performances.

Network, system and application performance is quantifiable, and directly affects a company's bottom line. NHI's enterprise performance monitoring software delivers both observational and active forms of real-time, network, system and application performance data. This data can be used to reduce mean time to repair problems, increase end-user productivity and empower IT managers to resolve performance issues, proactively and reactively. NHI's products add real-time, end-to-end monitoring capability that complements the business intelligence gathered by InfoVista's industry-leading SLA reporting products. NHI's standards-based architecture simplifies integration into network management software and other mission-critical management applications.

"NHI's focus on optimizing the measurement and reporting of Service Level Agreements (SLAs) is a strategic fit for InfoVista's solution set," said Daniel Tautges, vice president of NHI. "We are looking forward to integrating our intelligent software agent with InfoVista's solution to provide a best-in-class product for customers."

"Today's enterprises realize the bottom-line importance of their IT network infrastructure. Down-time or network problems can cost a company millions of dollars in just a few minutes, " said Christian Pascault, Director Product Management at InfoVista. "The aim of our agreement with NETWORK HARMONi is to enhance InfoVista's already strong product offering and offer companies stronger solutions for end-to-end performance and quality of service measurement from the LAN & WAN network components to the applications. Over the coming months we will be making further announcements about product solutions related to the NHI agreement."

About InfoVista
InfoVista is a leading global provider of Service Level Management software solutions. InfoVista designs, develops and markets technologically advanced software which monitors, analyzes and reports on the performance and quality of services of information technology (IT) infrastructure, including networks, servers and applications. InfoVista markets primarily to telecommunications companies, including British Telecom, France Telecom, and Cegetel; Internet service providers including UUNET and Wanadoo; and other IT-intensive organizations such as financial services companies including AXA, First Union Bank, Fleet Capital and Banque de France, and other multinational companies like NestlŽ and Shell. InfoVista stock is traded on the NASDAQ under the ticker symbol IVTA and the Nouveau MarchŽ under the symbol InfoVista (7667). For more information about the company, please visit www.infovista.com.

About NETWORK HARMONi
NETWORK HARMONi (NHI) is an enterprise performance monitoring software developer that delivers real-time, network, system and application performance data from the network's edge to its core. NHI's suite of software agents measures each critical link within the enterprise, including host systems, applications and network infrastructure for Unix, Linux, Windows and Solaris environments. NHI's products provide accurate, reliable data to help IT managers reduce mean time to resolve problems and better manage technology assets. With a history in packet decoding and data mining, NHI's agents support the robust requirements that network management, business intelligence, help desk, trending, and embedded system companies require. NETWORK HARMONi is a global company with headquarters in San Diego, Calif. Visit http://www.networkharmoni.com for additional information.

Media contact:

Mark E. Stumm
NETWORK HARMONi, Inc.
Telephone (858) 523-2403
mstumm@networkharmoni.com