Patent ID: 8116331

Claim:
A communication system including a network apparatus for controlling communication through a pseudo wire connecting between facing devices that oppose one another, said network apparatus including: a path table in which a MAC (Media Access Control) address of said facing device which opposes a device connected to the apparatus itself and a lending MAC address prepared in advance for said pseudo wire are registered in correlation with each other; a MAC table in which a MAC address of said device connected to said apparatus itself, and path identification information for specifying a combination of said MAC address of said facing device and said lending MAC address in said path table to which the device refers are registered in correlation with each other; and a unit which generates said path identification information and registers the path identification information at said path table at the time of communication through said pseudo wire; wherein when a device in communication through said pseudo wire has a change, said network apparatus is configured to reset settings of said pseudo wire based on said path table and said MAC table.