A simulation of the TCP-IP Protocol Stack written in C++. Computer Networks UniCT Exercise.
The protocols are defined in the Protocols.h header, and implemented in the StackProtocol.cpp file.
The PDUs (Message, Segment, etc) are defined and implemented in the PDUs.h header.
The Device class is defined in the Devices.h header, and implemented in the Devices.cpp file.
The main is in Devices.cpp. When one invokes the Device method sendMessage(), the message will travel through all the layers: it will be incapsulated on its way down, and segmented at the Transport Layer. It will be deposited on the shared stack, which is for now a stack of Frames.
When one invokes the Device method receiveMessage(), the NetworkAccess level of the Device will take the frames from the Shared Stack, and decapsulate them all the way up to the Application level, which will then decode the message back to ASCII characters and print it to screen.
Devices.cpp and StackProtocol.cpp should be compiled together. ($g++ Devices.cpp StackProtocol.cpp then \a.out or \a.exe if you are a Windows user.)
Example of output: simulation of sending "hello world" through two Device instances
