The QUIC transport protocol: design and Internet-scale deployment Langley et al., SIGCOMM’17
QUIC is a transport protocol designed from the ground up by Google improve the performance of HTTPS traffic. The chances are you’ve already used it – QUIC is deployed in Chrome, in the YouTube mobile app, and in the Google Search app on Android. It’s also used at Google’s front-end servers, handling billions of requests a day. All told, about 7% of global Internet traffic is now flowing over QUIC. There are three interesting aspects to the paper, that we can essentially divide into the Why, the What, and the How. How QUIC was built and evolved over time is an integral part of the story.
Why build a new protocol
Two forces combined to create the pressures that eventually led to QUIC. On the one hand, the use of the web as a platform for applications, and the latency sensitivity of those applications (and…