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rust-raknet documentation

A high-performance asynchronous networking library implementing reliable UDP messaging in Rust. The optional blocking feature provides synchronous calls over the same Tokio transport.

Version / 版本：1.4.0 · crates.io · source / 源码 b909c93 · 2026-10-12

Guides

Topic	Guide
Quick start	Quick start
Blocking calls and shared runtimes	Blocking calls and shared runtimes
Public API index	Public API index
Five reliability modes	Five reliability modes
RakNet wire format and recovery	RakNet wire format and recovery
Message lifecycle and limits	Message lifecycle and limits
Bytes and explicit batching	Bytes and explicit batching
Send policy	Send policy
Recovery policy and tail probes	Recovery policy and tail probes
Every configuration parameter	Every configuration parameter
Concurrency and socket tuning	Concurrency and socket tuning
Errors, deadlines and cancellation	Errors, deadlines and cancellation
Congestion and deployment boundaries	Congestion and deployment boundaries
Benchmark results	Benchmark results
Benchmark methodology	Benchmark methodology
Benchmark reproduction	Benchmark reproduction
Minecraft Bedrock proxy	Minecraft Bedrock proxy
Troubleshooting and development	Troubleshooting and development
Release history and upgrading	Release history and upgrading

Scope

UDP delivery is made reliable through sequence numbers, ACK/NACK, retries and reordering. The five modes let messages choose delivery semantics. Applications still handle disconnects and provide business acknowledgements.

Payloads must be nonempty and start with 0xfe. Only ReliableOrdered automatically fragments oversized outgoing messages. Encryption, identity authentication, adaptive bandwidth congestion control, Sans-I/O and a Bevy plugin are not supplied. Blocking is a synchronous adapter, not a polling API. See the deployment guide for practical boundaries.

GitHub · API docs