The mobility phenomenon is truly one of the drivers of technology today. A few short years ago, wireless was simply a convenience feature to provide connectivity in conference rooms and on campuses for students who wanted to sit outside while writing a term paper. Now with the advent of all these wireless devices, the requirement for mobility and wireless in motion, and the lack of physical Ethernet ports on these devices, wireless has moved from being just a convenience into being the true primary access layer for network connectivity. 
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