WESTFORD, Mass., August 28, 2006 – NetScout Systems, Inc. (NASDAQ: NTCT), a leading provider of network performance management solutions, today announced that it will be presenting at the Kaufman Bros. 9th Annual Investor Conference in New York City on Wednesday, September 6, 2006 at 4:10PM ET. This event will be available over the Internet via live webcast. The live webcast may be accessed on NetScout's Investor Relations website at http://www.netscout.com/investor. Following the conference the webcast will be archived in the Investor Relations section of NetScout's website under "Calendar of Events." Additional information on this conference is available at http://www.kbro.com.

About NetScout Systems, Inc.

NetScout Systems, Inc. (NASDAQ: NTCT) is a market leader and pioneer of integrated network performance management products that unify performance across the enterprise. NetScout’s nGenius® Performance Management System is helping more than 3,000 leading companies increase their return on infrastructure investments by optimizing the performance of networks and applications according to business priorities. NetScout is headquartered in Westford, Massachusetts and has offices worldwide. Further information is available at http://www.netscout.com.

©2006 NetScout Systems, Inc. All rights reserved. NetScout and the NetScout logo, nGenius, and Quantiva are registered trademarks of NetScout Systems, Inc. Other brands, product names and trademarks are property of their respective owners.