Published at LXer:

For years, the traditional model in networking was for much of the work to be done in hardware. But with the rise of cloud computing and virtualization, and the need for networks to become more agile and flexible than ever, a trend is beginning to take hold to take networking in the same direction that computing has gone. We are seeing more and more that the networking functions traditionally done in the datacenter by dedicated, almost exclusively proprietary hardware and software combinations, are now being defined through software.

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