Chatsworth, CA, January 16, 2006

MRV Communications and EdenTree Technologies Expand Partnership for Automated Test Lab Solutions

Combination of Lab Manager and Media Cross Connect Brings Automation, High Port Density, and Wide Network Protocol Support to Test Needs of NEMs, Service Providers and Enterprises

MRV COMMUNICATIONS, INC. (Nasdaq: MRVC), a leading provider of products and services for out-of-band networking, WDM and optical transport, metro Ethernet, fiber optic components, 10GE and other service aware networking technologies, today announced it will resell EdenTree Lab Manager™ software from EdenTree Technologies in an integrated solution with its Media Cross Connect ("MCC"). The joint solution is aimed at automating test labs for network equipment manufacturers ("NEMs"), service providers and enterprises.

The reseller agreement is an extension of a yearlong collaboration between the companies that has included the technical integration of EdenTree Lab Manager software with the MCC hardware as well as joint selling of this solution to customers including test labs at U.S. Army Ft. Huachuca, Cisco Systems, Inc. and SBC Communications, Inc.

The combined solution means increased productivity and reduced cabling errors as customers can design and schedule automated network tests of new equipment designs or new network deployments.

The MRV MCC offers the industry’s highest density and supports all fiber-optic interfaces up to 10 Gbps to enable interoperability and functionality testing of large and complex local area, wide area, and storage networks. The MCC is based on the open and flexible Linux operating system, which works with the MCC’s network management card to ensure secure access.

”The Media Cross Connect provides a reliable, cost-effective cross-connect platform for a wide range of network testing labs. With the addition of EdenTree's Lab Manager software to the solution, we extend the MCC’s automation capabilities to provide a practical solution for complex physical-layer switching infrastructures,” commented Noam Lotan, President and CEO of MRV Communications.

EdenTree’s Lab Manager automates physical reconfigurations of equipment in networks and labs, allowing users to design and apply configurations remotely, recall, share, and schedule those configurations, and search for and track the usage of lab resources, all from an easy to use graphical user interface or scripts. EdenTree Lab Manager manages and hides the complexity of multi-switch infrastructures, creating virtual switch matrices and allowing the user to focus on end devices.

“The productivity and ease-of-use benefits that our software provides to lab personnel are enhanced by a tight integration with the cross connect. With MRV’s extensive interface support and high density, we feel this partnership is especially beneficial to those test labs that support large and complex network configurations,” said Jay Oyakawa, President and CEO of EdenTree.

About EdenTree Technologies, Inc.
EdenTree Technologies provides connection management solutions for network equipment manufacturers, service providers, and enterprises that have dynamic lab and network environments. EdenTree’s Lab Manager, the “lab operating system” and leading software platform for managing and scheduling lab resources, is used by companies such as Cisco Systems, Hitachi Data Systems, BellSouth, and SBC, helping them reduce testing time and costs, increase leverage of equipment investments, and improve asset tracking. EdenTree brings an unprecedented level of speed, efficiency, and productivity to network labs, by eliminating manual reconfigurations, enabling remote access, automating repetitive processes, and storing test configurations and results.

For more information, please visit www.edentreetech.com

About MRV Communications, Inc.
MRV Communications, Inc. (“MRV”) is a leading provider of network equipment and services, and optical components. MRV’s networking business provides equipment used by commercial customers, governments and telecommunications service providers, and includes switches, routers, physical layer products and out-of-band management products as well as specialized networking products for aerospace, defense and other applications including voice and cellular communication. MRV’s optical components business provides optical communications components for metropolitan, access and Fiber-to-the-Premises applications, through its wholly owned subsidiary LuminentOIC, Inc. MRV markets and sells its products worldwide through a variety of channels, including a dedicated direct sales force, manufacturers' representatives, value-added-resellers, distributors and systems integrators. MRV also has operations in Europe that provide network system design, integration and distribution services that include products manufactured by third-party vendors, as well as internally developed and manufactured products. Publicly traded since 1992, MRV is listed on the NASDAQ National Market under the symbol MRVC. For more information about MRV and its products, please call (818) 773-0900 or visit our websites at www.mrv.com and www.luminentoic.com.