Top 20 NuGet transport Packages

Crossroads I/O (libxs) is an open source, high performance transport layer. This package includes compiled versions of the native libxs library for x86 and x64.
UNOFFICIAL: NetMQ is 100% C# native port of ZeroMQ. NetMQ is lightweight high performance messaging library. This current version is still in alpha phase and not recommended for production usage yet
Core features for StructuredData Libraries
Tcp transport for LibP2P
Transport file encapsulates logic for storing streams.
Package Description
The crossroads-net project contains .NET bindings for Crossroads I/O, an open source, high performance transport layer. Targets Any CPU and includes compiled versions of the native libxs library for x86 and x64.
Library implementing PangYa's transport encryption
Package Description
Package Description