Patent ID: 7796519
Filing Date: 2010-09-14
Classification: H04J,H04Q

Abstract:
1. A dynamic bandwidth allocation circuit, comprising a bandwidth allocation calculation section that, based on bandwidth requested by each of a plurality of service path terminating sections that belong to any of a plurality of service classes that are classified according to delay size, allocates bandwidth to each of the service path terminating sections, wherein in an operation cycle a maximum total value allocatable bandwidth is set and a maximum value of bandwidth that can be requested for each service class also is set and if the sum value of the bandwidths allocated for all service path terminating sections is greater than or equal to the maximum total value allocatable bandwidths then the allocation of the last bandwidth that was allocated for a service path terminating section is cancelled, and the service path terminating section whose allocation has been cancelled is set as the first service path terminating section in the allocation sequence in the next operation cycle.