Cisco Systems Inc. (Nasdaq: CSCO) agreed to buy Meraki, a San Francisco-based cloud-technology firm, for roughly $1.2 billion.

Meraki, a cloud-network infrastructure company with offices in New York, London, and Mexico, will be folded into Cisco's Unified Access business.

This is the latest deal for San Jose, Calif.-based Cisco, which has announced several deals over the course of 2012.

On Nov. 15, Cisco picked up software company Cloupia for $125 million in cash. In May, Cisco purchased Truviso Inc., a privately held company in Foster City, Calif. that provides network data analysis and reporting software, for an undisclosed price. And in March, it bought digital video technology company NDS Group Ltd. from News Corp. and private equity firm Permira for about $5 billion.

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