I have recently moved from a frame relay hub and spoke topology to an ethernet point to multipoint environment. Now all my routers are showing connected to a device called a "Serial 2M" still in a hub and spoke appearance. Also most of the connections are shown in red as though there is no communication. Does anyone know what "Serial 2M" is and why it is not showing my topology the way I would expect? I have attached the "device" in the form of a jpg.