| 摘要 |
Provided is a network system comprising a network constructed by combining a plurality of switch devices (1 to 5), wherein the network includes a first partial network that further includes switch devices (1 to 3), and a second partial network that is formed outside the first partial network and that further includes switch devices (4 to 5). A switch device (2) that is within the first partial network and connected to the second partial network blocks, at a physical port (12) thereof, passage of a broadcasting signal that is transmitted from a terminal apparatus (6) and contains a specific logical port number as transmission information. |
