A machine, double card, how to configure, make communication between the double card? Application scenario is wanted to test the performance of the optical fiber, considering the fiber respectively inserted into the same machine of two pieces of card, and then use the Socket communication, feasible?

Also try to want to open a virtual machine, the host a network card, the virtual machine to use another piece of card, the plan seems to be infeasible,

The great god what other recruit Internet? For cost reasons, do not want to add another machine, just as with a PC machine, testing the on-off of the fiber, the cost of preferred,