QUIC

Abstract

• Stands for Quick UDP Internet Connections
• Think of QUIC as being similar to TCP+TLS+HTTP 1.2 implemented on UDP (Like TCP 2.0)
• Built on top of UDP but the mechanism is based on TCP
• Integrating TCP Handshake with TLS Handshake into QUIC Handshake

We can't change TCP like how we change HTTP to solve the TCP Head-of-Line Blocking issue, because changing TCP requires changes made to all the Kernel which is much harder than changing browser

Solve TCP Head-of-Line Blocking with [QUIC Stream

QUIC Frame

• Similar to the HTTP Frame, there isn’t HTTP Frame in HTTP 1.3

QUIC Stream

• Introduce HTTP Stream in the Transport Layer
• An Abstraction (抽象) of HTTP Request/HTTP Response into QUIC Frame]