What are the differences between tcp, kcp, h2, ws, quic, and grpc transmission protocols?

[CaptainBride]

SOURCE: https://byart.cc/814

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In network communications, transmission protocols are the key to ensuring reliable transmission of data in the network. It defines how data is split, sent, and reassembled on the receiving end. TCP (Transmission Control Protocol) is one of the most commonly used transmission protocols, but there are other options, such as KCP, H2, WS, QUIC, gRPC, etc., each of which has its own advantages and disadvantages.

TCP is a connection-oriented protocol that establishes connections through a three-way handshake and maintains a Transmission Control Block (TCB) to track the status of each connection during the connection process. The reliability and orderliness of TCP make it one of the most commonly used transport protocols for Internet applications.

KCP is a user-space implementation of the transmission protocol, which is designed to provide faster transmission speeds and smaller latency. KCP uses some new technologies, such as timing protocols, fast retransmission and congestion control, to improve the performance of TCP.

H2 is a binary protocol based on TLS, which is an upgraded version of HTTP/1.1. H2 supports multiplexing and can send multiple requests at the same time without waiting for the response of the previous request. This makes H2 more efficient than HTTP/1.1 when handling large numbers of requests.

WS (WebSockets) is a TCP-based protocol that makes two-way communication between the browser and the server possible. WS allows the server to push data to the client without requiring the client to initiate a request.

QUIC is a secure UDP-based transport protocol developed by Google and used in the Chrome browser. QUIC includes TLS and HTTP/2 functions and provides better connection migration and flow control.

gRPC is a protocol based on HTTP/2. It is a high-performance, open source remote calling framework developed by Google. gRPC uses Protocol Buffers to serialize data and supports multiple programming languages.
Security of transmission protocols such as tcp, kcp, h2, ws, quic, grpc, etc.

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In network communications, security is crucial. All of these transport protocols can use TLS to encrypt communications, protecting the privacy and integrity of your data. However, QUIC and gRPC are more security-focused in design and provide more comprehensive security features, so they are superior in terms of security.

To sum up, which transport protocol to choose depends on the specific requirements of the application:
If the application requires high reliability and orderliness, TCP is the best choice;
If the application requires better performance and lower latency, KCP may be a better fit;
If your application requires higher concurrency, H2 may be a good choice;
If the application requires bidirectional communication, WS is the best choice;
If your application requires better security, QUIC and gRPC are your best choices.

[2dust]

https://xtls.github.io/