Avalonia is a PHP 7 framework designed for building network applications.
Built on top of great php projects such as Symfony and Hoa, the goal is to build a framework to write applications that needs more than only HTTP.
Message exchange abstraction layer for routing and network communication. This can describe messages of a lot of protocols such as http, smtp, imap and even irc.
This layer is used by avalonia's routing engine too for allowing endpoints to communicate.