1.9 KiB
1.9 KiB
| obj | wiki | rfc | website |
|---|---|---|---|
| concept | https://wikipedia.org/wiki/QUIC | https://datatracker.ietf.org/doc/html/rfc9000 | https://quicwg.org |
QUIC
QUIC is a transport layer protocol developed by Google to improve the performance of web applications by reducing latency. It operates over the User Datagram Protocol (UDP) and is designed to provide a more efficient alternative to the traditional Transmission Control Protocol (TCP).
Key Features
1. Multiplexing:
- QUIC supports multiplexing multiple streams of data within a single connection. This enables parallel processing of data, reducing latency and improving overall performance.
2. Low Latency:
- QUIC is designed to minimize connection establishment and data transfer latency. It achieves this by combining the initial connection handshake with the first data transfer.
3. Adaptive Congestion Control:
- QUIC includes built-in congestion control mechanisms that adapt to network conditions, optimizing data transfer rates while avoiding congestion.
4. Connection Migration:
- QUIC allows for seamless connection migration between different network interfaces, such as switching between Wi-Fi and cellular data, without disrupting the user experience.
5. Forward Error Correction:
- QUIC incorporates forward error correction (FEC) to recover lost or corrupted packets without the need for retransmission. This enhances reliability in unreliable network conditions.
QUIC Components
1. QUIC Transport:
- Handles connection establishment, multiplexing, and reliable, in-order delivery of data.
2. QUIC Crypto:
- Responsible for securing the QUIC connection using encryption and authentication. It is based on TLS (Transport Layer Security).
3. QUIC Loss Detection and Congestion Control:
- Manages congestion control and packet loss recovery to ensure optimal data transfer rates.