In the device which it communicates with the router which forms manner and the device null VPN network which calculate the minimum

摘要

PROBLEM TO BE SOLVED: To utilize band efficiently by allotting a requisite minimum band for a VPN user in a band guarantee type IP-VPN.;SOLUTION: Each initial value (number of links, number of time zones, number of unit time durations) of VPN band proportion is set in a step 101. A threshold of VPN band increase, a threshold of VPN band decrease, an increase and decrease width of VPN band are set in a step 102. A VPN band proportion necessary for each link and for each time is calculated in a step 103, and a requisite minimum VPN band is calculated in a step 104.;COPYRIGHT: (C)2005,JPO&NCIPI