Build Stuff 2017

Cloud networking runs at seemingly improbable scale - millions of networks from different tenants flow, sometimes with tens of thousands of instances per network - all on the same physical substrate. Often the performance requirements are huge - expensive GPU-intensive compute jobs must be fed with data in order to keep them efficient. It is plainly clear that traditional networking technology is not behind this - so what is? In this talk we'll look at the building blocks of cloud networking - from hypervisors to switches - from first principles, show how the building blocks fit together, and how this maps onto various cloud network offerings.