Popping open a can of Diet Coke, John Chambers sits down to talk in his tiny, windowless conference room just off his rather modest office. Behind him on the wall are 13 framed posters signed by the engineers who created some of Cisco's billion-dollar businesses (a litany of three-letter acronyms that only a geek could love). It's been 19 years that he's been running Cisco Systems, the world's largest maker of data networking gear. Chambers would like nothing more than to add a few more posters to the wall before he's gone.
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