NetScout Systems to Report Second Quarter Fiscal Year 2009 Financial Results on October 23, 2008

NetScout Systems, Inc. (NASDAQ: NTCT), an industry leader for advanced network and service assurance solutions, today announced it would report its second quarter fiscal year 2009 financial results on October 23, 2008 after the market close, and hold its corresponding conference call at 4:30 p.m. ET.

The numbers for the conference call are (866) 701-8242 (U.S.) and (706) 634-5113 (international). The conference call ID is: 69285275. A replay of the call will be available after 7:30 p.m. ET on October 23 for approximately one week. The number for the replay is 800-642-1687 for U.S./Canada and 706-645-9291 for international callers. The conference ID is: 69285275.

A live webcast of the conference call will be available on the company's website at http://www.netscout.com/investors.

About NetScout Systems

NetScout Systems, Inc. (NASDAQ: NTCT) has been an industry leader in advanced network and service assurance solutions for over twenty years. NetScout’s breakthrough technology solutions provide trusted, comprehensive real-time and historical performance intelligence, including advanced early warnings and rapid, definitive problem analysis. These capabilities are vital to IT operators who are accountable for reducing the Mean Time to Resolution. The world’s largest enterprises, government agencies, and service providers depend upon NetScout’s nGenius and Sniffer (formerly Network General) brands to assure service levels to their users by reducing or preventing disruptions and degradations. More information about NetScout is available at http://www.netscout.com.