John Earnhardt, a 16-year veteran of Cisco's corporate communications unit, has departed amid a CEO change there for the VP of corporate comms. slot at Visa.

john earnhardtHe takes a title held by Jennifer Doidge, who left Foster City, Calif.-based Visa this month for Blackberry.

Earnhardt leaves Cisco as head of its corporate comms. after spending his entire tenure under CEO John Chambers, who is retiring to an executive chairman role in July after two decades.

Cisco announced May 4 that SVP Chuck Robbins will take over as CEO.

Earnhardt started out in Washington on the Hill and did a PR stint with the National Association of Broadcasters.

Blair Christie is Cisco's chief marketing officer, a title she took in 2011 after serving as senior VP of global corporate comms. and IR.