Traffic engineering equipment, traffic engineering methods and programs

摘要

PROBLEM TO BE SOLVED: To provide a traffic engineering device, method, and program capable of distributing traffic to a plurality of external links in accordance with a predefined policy without increasing the number of ASs (autonomous systems) through which packets pass.;SOLUTION: In the operation of a traffic engineering device in an autonomous system (AS), routing information is received from a plurality of router devices located at a boundary between the AS and other ASs, and priority for each destination prefix, prefix length, and router device is calculated to be stored as routing distribution information. Information on the amount of traffic to be output to the other ASs from each of the plurality of router devices is received, and total amount of traffic is calculated by totaling the amount of traffic for each of the destination prefix, prefix length, and router devices, to be stored as traffic information. A pair of router devices included in the router distribution information that have respective priority values with a relatively small difference therebetween are selected, and a packet distribution ratio between the selected router devices is renewed by referring to the traffic information so that the amounts of traffic for the selected router device can meet a predefined policy.;COPYRIGHT: (C)2013,JPO&INPIT