Sunnyvale, Calif., May 16, 2001, ‹ MontaVista Software Inc., the company
powering the embedded revolution, announced today that its Hard Hat� Linux®
operating system now supports the IBM next-generation reference platform for
the recently announced NP4GS3 network processor.

The advanced IBM PowerNP network processor software has been ported to run
on MontaVista Hard Hat Linux, providing an advanced operating system
platform for customers to use for testing, optimizing performance and
deploying NP4GS3-based applications. This port provides OEMs of high
performance network systems, including switches and routers, with a high
quality Linux platform for their development and deployment needs.

³The combination of IBM¹s high-performance, PowerNP hardware and software
platform with MontaVista's flexible Linux-based embedded OS platform and
design tools can help equipment vendors rapidly introduce next-generation
networking systems,² said Mike Montgomery, manager of network processor
enablement for IBM.

IBM¹s PowerNP reference platform is an integrated hardware, software and
services platform, featuring a packet routing switch module along with a
PowerPC control point microprocessor. It allows equipment manufacturers to
configure a "real world" network switch or router environment to conduct
thorough development, integration and testing before building their
products. 

³This port by IBM is further proof of the growing acceptance of Hard Hat
Linux for embedded applications in the telecommunications market," added
Sheila Baker, vice president, marketing, at MontaVista Software. "Now,
designers using the NP4GS3 can benefit from the robustness and openness of
our scalable operating system.²

IBM¹s new copper-based NP4GS3 offers more efficient data and resource
management capabilities, for delivery of new services such as streaming
audio and video downloads. The NP4GS3 also provides deep packet processing
support for OC-48, OC-12, gigabit Ethernet and Fast Ethernet at media speed.

MontaVista Hard Hat Linux boasts unrivaled development support for embedded
processor architectures including PowerPC and PowerNP CPU boards and
software components, with more than 480 fully tested and supported
host-target combinations.  The feature-rich release enables a wide variety
of embedded applications, providing a standard platform for designs in
communications infrastructure, networking, consumer electronics,
instrumentation and control.

About MontaVista Software Inc.
MontaVista Software Inc. is a leading provider of open-source systems
software solutions for embedded developers. Founded in 1999 by real-time
operating system pioneer James Ready, MontaVista's principal offerings are
the cross development tools and operating system tailored for embedded
developers. MontaVista products include Hard HatTM Linux®, a Linux-based
embedded source and binary distribution, development platform and tool kits
for x86/IA-32, PowerPC, StrongARM, MIPS, SH, ARM and other microprocessor
architectures. MontaVista offers developers a family of products and
services for embedded design targeted for applications ranging from
communications infrastructure to thin-client and edge applications.
MontaVista Software also makes available valuable technology add-on packages
that address specific customer requirements such as the Java Development
environment, High Availability technology, Legacy RTOS porting tools, GUI
toolkit and more.

Headquartered in the heart of Silicon Valley in Sunnyvale, Calif.,
MontaVista Software is a privately held company funded by leading investors
such Alloy Ventures, US Venture Partners, RRE Ventures, WR Hambrecht + Co.,
and Intel Capital. For more information about MontaVista, please visit
http://www.mvista.com  or call (408) 328-9200.

Linux is a registered trademark of Linus Torvalds. Hard Hat is a trademark
of MontaVista Software Inc. All other names mentioned are trademarks,
registered trademarks or service marks of their respective companies..

Contacts:

Joe Samagond
Director of Marketing and Corporate Communications
MontaVista Software Inc.
Phone (408) 328-9234
E-mail: jsamagond@mvista.com

Patricia Colby
PR Strategy and Business Development
Pacifico Inc. 
Phone (408) 293-8600 ext. 340
E-mail: pcolby@pacifico.com