Some details about the network topology simulator

In my last post I told you I want to develop a network topology simulator, but I haven't given you any technical details about it, except for the fact I want to use Docker and OpenvSwitch, just like IMUNES already does.
The whole project was only on my mind, so I decided to take some notes about the components I have to build and about how I want to implement things.
Now, I'm sharing those notes with you.

To simulate a network topology I would have to reproduce the behavior of ISO/OSI's level 2 and level 3.
To implement level 2, I'd use OpenVSwitch, that is a SDN-based layer 2/3 switch. Links would be realized with Linux kernel's iproute, and associated with ports on OVS.
I also want to let the user specify some informations about the links, such as bandwidth, delay, MTU, etc.
Level 3 and above features are going to be implemented with Docker: containers can represent hosts running services and network devices (such as firewalls and routers).
To do this, I think I'd need to run Docker containers with all capabilities; this could represent a security issue, but I will address this later.
Since Docker