Is Cisco spending enough on R&D to stay a leader?

Cisco (NASDAQ:CSCO) has spent an average of 14 percent of its revenues on R&D over the past five years, just two-thirds of what rival Juniper Networks has been spending. And, the upstart, which has been nipping at Cisco's heels of late, actually has increased it spending slightly, to 22 percent in the past couple of years. The concern is that, as Cisco looks for ways to control its costs, R&D will take a hit, and that's never good news for a company that is constantly being challenged by new entries into the market. Article