Protocol can mean different things, depending on the context:
Universal binary serializer for a wide variety of scenarios https://discord.gg/FGaCX4c
A .NET C# Implementation of QUIC protocol - Google's experimental transport layer.
Lightweight client socket solution, you can used it in C# project or Unity3d
📈 A Minecraft server status checker
A declarative serialization framework for controlling formatting of data at the byte and bit level using field bindings, converters, and code.
Neo4j Bolt driver for .NET
Lightweight and fully managed reliable UDP library.
IRC.NET is a complete IRC (Internet Relay Chat) client library for .NET.
Hazel Networking is a low level networking library for C# providing connection orientated, message based communication via TCP, UDP and RUDP.
Converts the ugly ASCII package that came from Open Protocol to an object
Official repository for lib60870.NET an implementation of the IEC 60870-5-101/104 protocols in C#
ErpNet.FP is a light-weight cross-platform Http server facilitating printing to fiscal printers through simple JSON Api.
A repository tracking releases of NIST's ACVP server. See www.github.com/usnistgov/ACVP for the protocol.
A .NET Standard implementation of the Source RCON Protocol.
Serial Communications Test Tool written in C# .NET Framework
rconsharp is a Valve RCON protocol implementation written in C# targeting netstandard 2.1
API for accessing Allen-Bradley PLC data over Ethernet Windows/Linux .NET Core