Admission control method in internet differentiated service network

Abstract

The present invention provides an admission control method in an Internet differentiated service network, for dividing an admission control function executed at an ingress edge node into a path level and a link level, performing a path level admission control function at an ingress edge node without communication with a bandwidth broker by enabling the path level to use a specific bandwidth being initially allocated to a corresponding path by a bandwidth broker, and performing a link level admission control function through the use of a measurement based admission control method by enabling the link level to be allocated a bandwidth of an unused other service using a movable boundary method when the initially allocated path level bandwidth is completely used.