Press Release

WOVEN SYSTEMS ETHERNET FABRIC SWITCH BEING DEPLOYED BY SANDIA NATIONAL LABORATORIES FOR HIGH-PERFORMANCE COMPUTING CLUSTER

Sandia Chooses EFX 1000 Ethernet Fabric Switch after Extensive Testing for its Superior Performance Advantage over InfiniBand

Santa Clara, CA - November 12, 2007 - Woven Systems(TM), Inc., the leading innovator of Ethernet Fabric switching solutions for data centers and high-performance computing clusters, today announced that Sandia National Laboratories, a multiprogram laboratory operated by Lockheed Martin for the U.S. Department of Energy, is deploying the EFX 1000 Ethernet Fabric Switch in a 128-node compute cluster. Sandia chose the EFX 1000 based on its proven ability to sustain 10 Gbps Ethernet throughput in a large remote direct memory access (RDMA) cluster during exhaustive testing at its Livermore, California laboratory. (Editor's Note: See Woven press release dated August 7, 2007, on "Woven Systems and Chelsio Communications Deliver Scalable High Performance for Computing Clusters at Sandia National Laboratories" for details on Sandia's evaluation. http://www.wovensystems.com/news/press_releases/chelsio.shtml)

"The ability to deploy standard 10 Gigabit-per-second Ethernet in compute clusters is a breakthrough advance for the industry," said John Naegle, senior engineer with Sandia. "Adaptive routing in an Ethernet mesh fabric, like Woven's, dynamically and automatically changes paths to eliminate congestion and balance traffic flows. This is particularly critical in a compute cluster where the application traffic patterns are changing constantly."

The Ethernet Fabric utilizes Woven's Active Congestion Management technology with latency-minimizing routing algorithms to balance traffic flow across the mesh fabric and deliver unprecedented levels of performance. The technology also detects switch or link failures, and automatically re-routes traffic to an alternate path in less than 10 ms, providing resiliency with no lost network connections and time outs. The companion Woven Dashboard performance monitoring application, also being used by Sandia, automatically discovers and graphically depicts the fabric's topology, and offers a constant, at-a-glance display of the load-balancing effect of the Active Congestion Management process.

"Woven Systems is proud to count Sandia Labs among the cutting-edge customers choosing the EFX 1000 Ethernet Fabric switch solution," said Jeff Thermond, Woven's president and CEO. "In test after test, Woven's massively scalable Ethernet Fabric is proving its ability to deliver sustained 10 GE performance. And like Sandia, other customers also value the tremendous versatility afforded by deploying a multi-path, meshed Ethernet fabric in data centers and compute clusters."

About Sandia National Laboratories
Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company, for the U.S. Department of Energy's National Nuclear Security Administration. With main facilities in Albuquerque, N.M. and Livermore, Calif., Sandia has major R&D responsibilities in national security, energy and environmental technologies, and economic competitiveness. Learn more at www.sandia.gov.

About Woven Systems
Woven Systems offers the industry's first massively scalable Ethernet Fabric switching solutions for data centers and HPC clusters. Distinguished by its patented vSCALE packet processing technology, Woven solutions are fully compliant with Ethernet standards. Woven redefines network performance and efficiency with Active Congestion Management for balancing traffic, operational simplicity and significantly lower power consumption. The Woven solutions deliver the scalability of InfiniBand(TM), the reliability of Fibre Channel and the simplicity of Ethernet. For more information, visit Woven Systems on the Web at www.wovensystems.com.