Cisco Systems Inc. ( NASDAQ: CSCO ) was reiterated as Buy with a $55 price target at Argus. The firm's report comes after Cisco acquired Luxtera to enhance its optical capabilities as networks prepare for a tripling in traffic over the 2017 to 2022 timeframe, and the firm sees multiple positives in Cisco's outlook from its Catalyst 9000 and campus, an increasing contribution from recurring revenue, higher revenue percentage in subscription software and exceptional cash flow funding the company's capital returns.