Juniper Networks Expands Board of Directors with Appointment of Robert M. Calderoni

Juniper Networks Expands Board of Directors with Appointment of Robert M. Calderoni

SUNNYVALE, Calif., October 20, 2003—Juniper Networks, Inc. (NASDAQ: JNPR) today announced the appointment of Robert M. Calderoni, chairman and CEO of Ariba, Inc., (NASDAQ: ARBA) to Juniper Networks board of directors. "We're delighted that Bob has agreed to join the Juniper Networks board," commented Scott Kriens, chairman and chief executive officer, Juniper Networks. "Bob brings over 15 years of experience as a Fortune 500 financial and operations executive with intimate knowledge of how technology can optimise a corporation's spending practices and we're excited to welcome him to the Juniper Networks team."

"I'm thrilled to be a part of the Juniper Networks board," said Mr. Calderoni "Juniper Networks has the vision to transform an industry at a very critical time. Its customer focus, leadership position and proven execution, make this an exciting opportunity." Mr. Calderoni spearheads Ariba's vision and product strategy around Enterprise Spend Management, which assists companies in managing spend and improving their bottom-line. Mr. Calderoni is also chairman of Ariba's Board of Directors.

Prior to Ariba, he served as senior vice president of Finance and chief financial officer for Avery Dennison. Previously, Mr. Calderoni served as senior vice president of Finance and corporate controller for Apple Computer, Inc., and as CFO and vice president of Finance for IBM's $8 billion Storage Systems Division. Before IBM, he was with Arthur Andersen & Company. Mr. Calderoni is a certified public accountant and graduated from Fordham University with a Bachelor of Science degree.

About Juniper Networks, Inc.

Juniper Networks transforms the business of networking by converting a commodity - bandwidth - into a dependable, secure, and highly valuable corporate asset. Founded in 1996 to meet the stringent demands of service providers, Juniper Networks is now relied upon by the world's leading network operators, government agencies, research and education institutions, and information-intensive enterprises as the foundation for uncompromising networks. Juniper Networks is headquartered in Sunnyvale, California. Additional information can be found at www.juniper.net.

Juniper Networks is registered in the U.S. Patent and Trademark Office and in other countries as a trademark of Juniper Networks, Inc. ERX, ESP, E-series, Internet Processor, J-Protect, JUNOS, JUNOScript, JUNOSe, M5, M10, M20, M40, M40e, M160, M-series, NMC-RX, SDX, T320, T640, and T-series are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.