Industry standard servers have played a big role in reducing the cost of networking across the enterprise. But there is a fair amount of nuance that needs to be appreciated to understand how to achieve that goal. One of the best examples is the way Amazon Web Services offloads network services from industry standard servers.
AWS has the largest amount of x86 server infrastructure on the planet. But even with all that infrastructure, AWS spent several million dollars developing its own network infrastructure to offload networking functions from those servers. At the recent AWS re:invent 2016 conference, James Hamilton, vice president and distinguished engineer for AWS, described how AWS is employing custom 25G routers and 10G network interface controller (NIC) cards based on commodity processors to scale networking services in the cloud.
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