| 摘要 |
PROBLEM TO BE SOLVED: To derive communication topology (connection form) of a communication network system composed of a plurality of devices when the plurality of devices are distributed and arranged. SOLUTION: In communication topology deriving processing, a host device 10 transmits a control rule A to all input-output control devices (nodes 1 to 7). Then, the host device 10 acquires the device ID of an input-output control device in which the needed number of hops is K times at the time of transmitting data. Respective input-output control devices that have received a message for an ID request respectively transmit a response message including a self-device ID according to the control rule A. When the host device 10 acquires the device ID, the host device 10 generates a topology tree obtained by adding an input-output control device with the acquired device ID attached. The host device 10 acquires the device ID of each number of hops to execute processing for generating the topology tree until an end condition is established. COPYRIGHT: (C)2006,JPO&NCIPI |
