Arbor Networks Expands Operations to Europe, Meeting Strong Global Demand for Network Anomaly Detection Solutions to Combat Fast-moving Threats.

Business Editors/High-Tech Writers

LONDON & LEXINGTON, Mass.--(BUSINESS WIRE)--Feb. 26, 2003

Building upon Arbor's success in the North American Service

Provider market, proven EMEA sales team off to a strong start

in Europe, with seven Peakflow deployments underway

Arbor Networks(TM), the leading provider of network anomaly detection solutions, today announced its expansion into Europe, answering global demand for a new approach to countering the ever-evolving threats to service provider networks.

Faced with growing and significant threats ranging from distributed attacks like denial of service (DoS) and network worms, to operational challenges like inefficient peering and capacity planning, service providers have recognized that the dynamic nature of such threats calls for a holistic, network-wide, anomaly-based solution.

Arbor's solutions are built upon its patent-pending Peakflow(TM) Platform, an architecture for network-wide data collection, analysis and anomaly detection. Peakflow's unique ability to model normal network behavior from the edge through the core, compare traffic against this baseline in real-time and then speed the resolution of anomalous behavior, has established Arbor as the leader of the burgeoning anomaly detection market.

Since Peakflow became generally available in May of 2001, Arbor has won significant North American business, spanning four tier-one service providers, the U.S. Department of Defense and a Fortune 500 enterprise.

Rob Pollard, director of sales, EMEA, leads Arbor's European operations from the company's London office. Since joining Arbor in late 2002, Pollard has driven early competitive wins in Europe, including a tier-one service provider deployment and six trial deployments underway in service provider networks in three central European countries, two Eastern European countries and one Southern European country.

Pollard brings to his role at Arbor 15 years' experience selling to the telecommunications market throughout EMEA. He joins Arbor from TollBridge Technologies where, as Managing Director EMEA, he successfully launched TollBridge into the region, generating a rapid revenue stream and establishing multiple channel partners. Previously, Pollard performed various sales and sales management roles throughout EMEA with Promatory Communications, Tellabs and Newbridge Networks.

"The impact of the recent SQL worm highlights the demand for solutions capable of detecting and resolving the zero-day threats that evade signature-based solutions," said Tom Schuster, Arbor senior vice president of sales and marketing. (Please see Arbor Networks Taps Former RSA Senior Executive Tom Schuster to Lead Global Sales and Marketing Initiatives, also issued today.) "We approach the problem uniquely; modeling the normal behavior of the network rather than modeling the threats against it. The strong demand from local service providers that pulled us into the European market speaks to the value of our approach. Rob's depth of experience in selling to telecommunications companies across EMEA will fuel continued success in the European market."

Since establishing its EMEA operations, Arbor has also grown existing business with its global customers, adding deployments in Europe to initial deployments in North America.

About Arbor Networks

Arbor Networks provides solutions that dynamically measure, visualize and protect networks, eliminating business vulnerabilities, both security and operational, that network operators face everyday. Peakflow, Arbor's network-wide anomaly detection platform, bolsters infrastructure security and streamlines backbone operations, improving profitability and driving revenue for the operators of complex networks. Funded by Thomas Weisel Venture Partners, Battery Ventures, Cisco Systems, Comcast Interactive Capital, SAIC Venture Capital Corporation, Ironside Ventures and EDF Ventures, Arbor is headquartered in Lexington, MA, with a research and development office in Ann Arbor, MI and EMEA headquarters in London. Arbor has been recognized as one of UPSIDE Magazine's Hot 100 Private Companies, Red Herring's Ten to Watch and Network World's Ten Start-Ups to Watch. www.arbornetworks.com

Copyright (c) 2001-2003 Arbor Networks, Inc. All rights reserved. Arbor Networks, the Arbor Networks logo, Peakflow and the Peakflow logo, and ArbOS are trademarks of Arbor Networks, Inc. in the USA and other countries. All other trademarks are the property of their respective owners.