In the world of computer networking, Cisco Systems (NASDAQ:CSCO) is the 800-pound gorilla, but Extreme Networks (NASDAQ:EXTR) is taking a step toward building its own scale to challenge its larger rivals. Last month, Extreme Networks announced it would acquire Aerohive Networks(NYSE:HIVE) for $272 million in an all-cash deal. Once completed, this acquisition will mold the combined company into a top-three cloud networking company