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)
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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