QoS GUARANTEE SYSTEM IN MULTI-DOMAIN NETWORK AND QoS SERVER TO BE APPLIED TO THE SAME

摘要

PROBLEM TO BE SOLVED: To quickly response to a request from a customer in a large-scale multi-domain network and to achieve quality guarantee communication in end-to-end while utilizing a resource in a using state.;SOLUTION: In a QoS guarantee method in a network route extended over a plurality of domains, a QoS guaranteeing resource request message is generated by a QoS server installed in a domain which is a QoS guaranteeing resource request source out of QoS servers installed in respective domains and cooperating with each other among the domains, the generated QoS guaranteeing resource request message is sent to the QoS server managing the succeeding domain on the route, and when QoS guaranteeing resource request results to the QoS guaranteeing resource request message in all domains on the route are resource securable states, resources for the obtained QoS guarantee on a route from the succeeding domain up to a domain to which a destination network address belongs are managed.;COPYRIGHT: (C)2007,JPO&INPIT