Cambion is a lightweight distributed application framework with multiple and pluggable backends, providing a set of convenience functions for event handling. If you have one application that needs to talk to another application, either on the same computer, or even on a different computer, you can't use the default loopback backend provided with Cambion. This transport provider uses RabbitMQ to send data between instances of Cambion.
Cambion.Transport.RabbitMQ is available on NuGet so you can install it in the NuGet Package Manager Console:
Install-Package Whitestone.Cambion.Transport.RabbitMQ
Documentation for the RabbitMQ transport is available on the Cambion documentation site