An Admission Control Method in Differentiated Service Networks

The present invention relates to a method for Connection Admission Control in the Internet differentiated service network to perform a bandwidth broker (Bandwidth Broker), dynamic bandwidth management, and measurement-based admission control method applied to consolidate the connection admission control in the Internet differentiated service network. The present invention To this end, the bandwidth broker, a number of inlet and outlet edge nodes, and in the plurality of connection admission control in the Internet differentiated service network including a core node way, pass the connection admission control performed at a plurality of inlet edge node a first step for separating the low level, and the link level, and assigning an initial path level bands for the inlet edge nodes in a bandwidth broker; A second step of transfer to a core node inlet edge node of the plurality of the congestion by performing the congestion control by the bandwidth broker in the case of the congestion in the path has occurred on a particular link; A third step of performing the connection establishment request when the path levels in the bandwidth broker initial allocation for each service on the path level of a path band pass level connection from the inlet edge node using the at admission control for the new flow; And when used is the initial assigned path level band, the link level in the dynamic bandwidth management method that does not use use the best-effort (Best Effort) after being allocated a bandwidth of the service link with the measurement-based admission control scheme level Connection Admission Control It includes; a fourth step of performing. Bandwidth broker, connection admission control, measurement-based admission control, dynamic range control, differentiated services network, and path level, link level