Rethinking networking abstractions for cloud tenants.

We argue that network virtualization as experienced by many cloud tenants is overly complex and needs to be rethought. We propose that the goal for a new design should be to free cloud tenants entirely from having to build and operate virtual networks. Building on this philosophy, we propose that instead of low-level building blocks (virtual links, routers, firewalls), cloud networking should be exposed to tenants in a declarative and endpoint-centric manner.