Exterior view of Cisco headquarters in Santa Clara, Calif., Wednesday, May 9, 

Exterior view of Cisco headquarters in Santa Clara, Calif., Wednesday, May 9, 2012. Cisco Systems Inc.'s quarterly earnings surged 20 percent in the latest sign that a recently completed overhaul is paying off for the world's largest maker of computer-networking equipment. (AP Photo/Paul Sakuma)
Associated Press
Exterior view of Cisco headquarters in Santa Clara, Calif., Wednesday, May 9, 2012. Cisco Systems Inc.'s quarterly earnings surged 20 percent in the latest sign that a recently completed overhaul is paying off for the world's largest maker of computer-networking equipment. (AP Photo/Paul Sakuma)
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