WEST HARTFORD, CT--(Marketwire - April 1, 2011) - The law firm of Izard Nobel LLP, which has significant experience representing investors in prosecuting claims of securities fraud, announces that a lawsuit seeking class action status has been filed in the United States District Court for the Northern District of California on behalf of purchasers of the common stock of Cisco Systems, Inc. ("Cisco" or the "Company") (NASDAQ: CSCO) between May 12, 2010 and February 9, 2011, inclusive (the "Class Period").