Increasing demand for voice and video over IP, network applications and devices, virtualization and cloud computing propelled Ethernet switch revenues to a 35.3% jump in the first quarter compared with a year ago, according to research firm IDC. Ethernet router revenue increased 15.1% for the same time frame. "The first quarter was an exceptionally good quarter for the Ethernet switch market," said Rohit Mehra, director, Enterprise Communications Infrastructure at IDC.

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