| 摘要 |
PURPOSE:To prevent the utilizing efficiency of a network from being decreased by storing respectively the newest state of all communication equipments connected to the network to each communication equipment. CONSTITUTION:All the communication equipments 1-n transmit network managing information at each prescribed time in terms of simultaneous multiple address. When information for disconnecting a terminal device 1a to which the communication equipment 1 is connected for example is transmitted and the communication equipments 2-n at the reception side receive it via a communication line 10, the communication equipment 2-n at the reception side discriminates an identification code of a control field of a packet received via the communication line 10 as a network managing code, the network managing information reception processing different from the processing at the normal data reception is executed, and only the network managing information of the communication equipment 1 being the sender is revised out of the network managing information of the other communication equipments than the own communication equipment stored in the communication equipments 2-n. |
