Networking tech giant Cisco has just agreed to acquire cloud infrastructure startup Meraki, and my industry sources confirm the purchase price was $1.2 billion, all in cash. I’ve also gotten ahold of the letter to Meraki employees from CEO Sanjit Biswas. It’s a huge win for the 330 employee San Francisco startup. [Update: The PR just hit the wire, confirming our details on the acquisition and $1.2 billion price.]