To smoothly update system constitution while effectively using resources.
The device is equipped with a storage means having a record stored with a combination of unique identifiers showing nodes at both ends of an active path of a network, a fault point identifier indicating a link where a fault possibly occurs, and a band identifier showing a transmission band to be provided as a substitute for the active path in case of the fault of the link, a route search means of searching for a path which can be provided as a substitute for the active path, and a network control means of retrieving records each including identifiers showing nodes at both ends of each link, a band identifier showing a surplus transmission band, and a fault point identifier showing the link and forming a path for the surplus transmission bands that the band identifiers included in the records show.
| WO/2009/122150 | ADMISSION CONTROL IN A PACKET NETWORK |
| JP2001217839 | NODE DEVICE |
| WO/2009/069645 | DATA TRANSFER SYSTEM AND DATA TRANSFER METHOD |
FUJII TAIKI
SHINOMIYA NORIHIKO
