Now: He won't slow down -- not even a bit. "Work is sheer stimulation," he says. "The idle lifestyle of the rich is just not for me."
Two years ago, he left Sun again for his current venture, Arista Networks, a company that provides low latency networking for cloud computing that has won more than 100 customers in the financial-services industry alone. "New ideas and innovation are ingrained in my psyche," says Bechtolsheim, 55. "What motivates me is using the latest technology to solve a problem in a better way than has been done before."
By Ellen Florian
NEXT: Andrew Sigler