| 摘要 |
<p>The present invention provides a trouble releasing system and method wherein, in operation of an ATM logic IP subnetwork, interruption of communication by a stop of an address solution server is prevented. When a currently used NHS (4) which performs address solution in a logic IP subnetwork stops a server operation because of a trouble thereof, a standby NHS control unit (63) in a standby NHS (6) issues an instruction for change-over to a server operation, and consequently, the standby NHS (6) operates as a server for address solution. Further, an NHC control unit (53) in an NHC (5a) retrieves an address of the standby NHS (6) registered in a server address database (51) and causes the standby NHS (6) to switchably perform communication of an address solution request. <IMAGE></p> |
