| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To build up a proper duplicated network in units of duplicate domains by adaptively identifying the duplicate domains to which a communication switching apparatus belongs in response to a connected position of the communication line switching apparatus. <P>SOLUTION: An address notice means 28 of a master unit generates a communication address of a slave unit in response to a communication address request from the slave unit, and informs the requester slave unit about the communication address and a domain ID set by a duplicate domain setting means 29. An address setting means 27 of the slave unit requests the communication address of the communication switching apparatus to the master unit having already been in operation. In this case, the address setting means 27 requests the communication address via a line of a backup communication system not connected to the other communication line switching apparatus belonging to other duplicate domain than the duplicate domain to which the communication switching apparatus belongs. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
