This comparison between easyIPC layers and OSI model is not exact. Due to the nature of embedded designs we need to keep things as simple as possible while we implement a minimum of infrastructure to secure the functionality we want.

Smart SPI, RS-X and CAN-X are layer 2 links. Their only responsibility is to transport generic data between two nodes and maintain that link.

Stream routing is a small layer that will look-up DID & SID, replace them and forward messages either to a different Link or to an application.

Managing Entity is a database maintaining status over the tree of devices and it’s resources. This is the more complex part where we provide plug & play, dynamic resource allocation, redundancy and all the complex features in easyIPC.

The API is a thin layer interfacing easyIPC into various applications and programming languages. On Linux this will be running as a daemon (Service on Windows) with applications connecting as they start/stop. On an embedded device we use a tighter technique written in C/C++.