DEVICE FOR CONTROLLING ROUTER, ROUTER, IP-VPN SYSTEM AND METHOD FOR CONTROLLING ROUTER

摘要

PROBLEM TO BE SOLVED: To provide a VPN system capable of effectively using an access-circuit band when traffics are not concentrated at one user node from a plurality of the user nodes, while ensuring bands at every transmission-origin user node even when the traffics are concentrated at one user node.;SOLUTION: The user node (a router) 111 being connected to access circuits ensuring the bands and measuring/informing the quantity of UNI receiving data, the user nodes (the routers) 112 and 113 capable of changing output speeds at every address, and a policy server 131 requiring the changes of the output speeds at the transmission-origin user nodes, are prepared. The policy server 131 requires the changes of the output speeds (limiting speeds) to the user nodes (the routers) 112 and 113 in response to the quantity of the UNI receiving data.;COPYRIGHT: (C)2007,JPO&INPIT