Broadwing Chooses Keynote Systems to Measure Aggressive New SLA Suite; Keynote Monitors Peering Performance in ''Off-Net'' SLA.

Business Editors/High-Tech Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--April 2, 2002

Keynote Systems (Nasdaq:KEYN), The Internet Performance Authority(R) today announced that Broadwing Inc. (NYSE:BRW), a leader in integrated communications, has chosen Keynote Web Site Perspective(TM) to monitor its new, ground-breaking SLA (Service Level Agreement) Suite for IP products between Broadwing and its top traffic exchange partners.

Broadwing chose Keynote's Web performance services to test and monitor the performance of its new off-net SLA starting with the initial concept and continues to use Keynote performance data to measure the latency for Broadwing's SLA Suite. That data plays a mission-critical role in expanding Broadwing's off-net SLA Suite to other service providers.

The new SLA is offered for Broadwing's Dedicated Internet Access Services and guarantees consistent throughput, low packet loss and high availability for traffic on and off their network. Specifically, Broadwing's SLA suite is guaranteeing less than one percent packet loss, 90 milliseconds round trip latency between the Broadwing network and its top three traffic exchange partners and 100 percent availability, with one-hop core routing, for off-net traffic. Broadwing chose Keynote's Web Site Perspective(TM) to monitor latency and look beyond local data to understand the performance of their own network and the networks of their traffic exchange partners.

"Keynote's Web performance benchmarking and testing services give us the data necessary to measure our new off-net SLA Suite for our Dedicated IP customers, monitor the performance of our top peering partners, and assure that we deliver the quality of service our customers demand," said Tony Tomae, vice president of data and Internet services at Broadwing.

"Broadwing understands that guaranteeing high availability for customers depends on not only measuring the performance of their own network, but measuring the performance of the Internet as well," said Marilyn Kanas, vice president of marketing at Keynote. "Keynote's Web performance measurement data helps Broadwing manage network performance, meet SLA objectives and ensure high, consistent customer access across the IP network."

About Keynote

Keynote Systems (Nasdaq:KEYN), The Internet Performance Authority(R), is the worldwide leader in Internet performance services that improve the quality of e-business. Keynote's services enable corporate enterprises to benchmark, diagnose, test and manage their e-business applications both inside and outside the firewall. By improving the quality of their e-business, companies reduce costs, gain operational efficiency, protect and grow revenue and stay ahead of the competition. More than 2,600 corporate IT departments, Web hosting companies and Internet service providers around the world have implemented the company's easy-to-use and cost-effective services.

Keynote Systems, Inc. was founded in 1995 and is headquartered in San Mateo, California. The company can be reached at www.keynote.com or by phone in the U.S. at 650/403-2400.

Note to Editors: The Internet Performance Authority and Perspective are registered trademarks of Keynote in the United States and/or other countries.

Note to Press: Call Keynote's media and analyst-relations hotline at 650/403-3254 to request further information on Keynote Systems, Inc. or an interview. To be added to Keynote's press-release distribution list, send an email to [e-mail] and specify your press affiliation.