A virtual router improves the switching capabilities of the router, defining individual virtual switches to trigger multiple switches across one or more routers. The diagram below illustrates a virtual router formed by 3 physical routers, configured with 10 virtual inputs and 2 virtual outputs, enabled with a main virtual switch (for main devices) and a secondary switch (for backup devices):
Perform_complex_switches_on_multiples_routers
Virtual Router : 10 inputs x 2 outputs
Virtual_Router__10_inputs_x_2_outputs