Isabelle Guis And Mansour Karam
Big hires going on at Big Switch Networks, the networking virtualization startup and OpenFlow evangelist. Isabelle Guis (pictured), formerly Avaya's general manager, enterprise communications business, is now Big Switch's vice president, outbound marketing. Mansour Karam, formerly director of business development for Arista Networks, is now vice president, strategic alliances at Big Switch, where among other duties he'll run Big Switch's partner ecosystem. Both join another recent hire, Howie Xu, who joined Big Switch in September as vice president, engineering, following nine years at VMware.