Comment by _wmd

> to build clusters at scale, we want to avoid the need to place Maglev machines in the same layer-2 domain as the router, so hardware encapsulators are deployed behind the router, which tunnel packets from routers to Maglev machines

Is "hardware encapsulator" just a fancy way of saying they're using tunnel interfaces on the routers, or is a "hardware encapsulator" an actual thing?