Microcontroller for Switch

Hello all,

I study Informationtechnology about signals and communication.But now I 
have to handle a new Project about Microcontroller.
I´d like to design a Switch Module like attachment.Some Inputs in kinds 
of CAN,Flexray and BroadR-Reach Ethernet(single pair Ethernet) also 
Outputs in other side.It should not be a gateway because the Inputs 
signals will be routed to the same kind of Bus.For Example,CAN to 
CAN,Flexray to Flexray.
My question is:
1.How many hardware are necessary like Chips,Cables,Transcievers and so 
on.
2.which software I can use to make the simulation.

Thank you very much!