US Patent 10097424 Route display method and route display apparatus

A route display method includes obtaining, by a processor, specification information that specifies one of interfaces from interfaces of an L2 apparatus that relays communication according to a protocol used in a datalink layer, among a plurality of apparatuses included in a virtual network displayed on a display apparatus, identifying, by the processor, an L3 apparatus that relays communication according to a protocol used in a network layer and belongs to a same network as the interface of the L2 apparatus, according to the specification information, and making, by the processor, a route that connects between the L2 apparatus and the L3 apparatus displayed on the display apparatus.