Robust Platform Reduces Network Costs and Enables Delivery of Revenue-Generating Managed Services

LEXINGTON, MA--(Marketwire - June 3, 2008) - Arbor Networks, a leading provider of secure service control solutions for global business networks, announced today that OpSource, the leader in Web operations, has deployed the Arbor Peakflow SP platform ("Peakflow SP") for network-wide anomaly detection and mitigation, application intelligence and as a revenue-generating managed services platform.

OpSource is leveraging Peakflow SP to see what applications are running on its network, to profile application network behavior, and to detect and report on application traffic violations -- thereby reducing downtime and accelerating problem resolution. Only Peakflow SP combines pervasive, cost-effective visibility with deep application insight and analysis of critical network traffic, services and applications. Additionally, Peakflow SP is a strategic investment that enables OpSource to leverage the same solution used for infrastructure visibility and security to deliver new, differentiated, revenue-generating managed services and DDoS protection to its customers.

"OpSource is using Peakflow SP as a platform for DDoS protection and traffic modeling. In today's highly competitive SaaS market, that is a combination that is hard to beat," said John Rowell, chief technology officer of OpSource. "Peakflow SP leverages IP flow data from existing infrastructure to help us to optimize services, reduce costs and get pervasive, cost-effective network and application visibility. We are also using Peakflow SP to deliver differentiated, in-cloud DDoS services to our customers. It is a very powerful platform."

"Organizations that outsource Web application delivery to OpSource do so because of their reputation for quality services and performance," said Rob Malan, Arbor Networks co-founder and chief technology officer. "Peakflow SP is a very robust platform for cost-effective, pervasive and intelligent visibility into network and application traffic, combined with the ability to quickly recognize and mitigate security threats. The result for OpSource is the actionable intelligence it requires to meet the needs of its customers."

Peakflow SP provides real-time, network-wide anomaly detection and reporting of routing and traffic patterns across an entire network, enabling its users to interpret and visualize threats on the network. Arbor Networks' users can quickly determine the root cause of changes in traffic, which may be the result of new applications, or violations in usage policies, and offer the ability to evaluate peering relationships with partners to optimize transit performance.

About Arbor Networks

Arbor Networks is a leading provider of security and network management solutions for global business networks, including more than 70 percent of the world's Internet service providers and many of the largest enterprise networks in use today. Arbor delivers secure service control solutions that both protect global networks from the edge to the core from a host of threats, as well as helping customers gain network-wide visibility they can translate into actionable business intelligence to generate new forms of revenue and maintain a competitive advantage. Arbor's solutions give customers a single, unified view into their networks' performance, helping them to quickly detect anomalous behavior, mitigate threats and enforce policy. Arbor also maintains the world's first globally scoped threat analysis network -- ATLAS -- which uses technology embedded in the world's largest ISP networks to sense and report on comprehensive worldwide threat intelligence.

To learn more about Arbor Networks, please visit: http://www.arbornetworks.com . To learn more about ATLAS, please visit: http://atlas.arbor.net . To learn more about the Arbor Security Engineering & Response Team (ASERT) -- the company's security research arm -- please visit the ASERT blog: http://asert.arbornetworks.com.

Note to Editors: Arbor Networks, ATLAS and the Arbor Networks logo are trademarks of Arbor Networks, Inc.

About OpSource

OpSource delivers Web applications and software-as-a-service for on-demand companies, with hundreds of applications, millions of users and billions of transactions supported daily. OpSource On-Demand, the leading platform for Web application delivery, is defining how Web-based software is delivered. By choosing OpSource as their Web application delivery partner, companies are freed from investing in and managing the complex and costly infrastructure and services necessary to deliver applications over the Web. They can instead focus their resources on developing, marketing and selling their applications and services. OpSource On-Demand is suitable for companies at any stage of growth, with any type of on-demand application. OpSource is the only company to offer Success-Based Pricing, a unit-based pricing model that allows businesses to begin with a modest minimum commitment and scale expenses as revenues increase. Headquartered in Santa Clara, CA, OpSource has Web application delivery centers in Virginia, London and Bangalore. For more information about OpSource, visit http://www.opsource.net .