Planning circuit for handling service classes of different priority, involves assigning a number of schedulers a number of service-classes with each scheduler initially carrying out one port-connector allocation

摘要

Planning circuits and planning methods for establishing the priority between various service classes aim at providing an acceptable throughput of the different data streams with the dynamic rate controlled the data stream is controlled at a rate as based on the overload information which is monitored at a bottle-neck in the switch. To maintain low losses during the allocations of the connectors, a number of schedulers (2i...2k) are each assigned a number of service-classes and each scheduler carries out one port-connector allocation, so as to assign the input ports and output ports which are used in a switching operation, based on a connector allocation result (S2i...S2k) of at least one of the number of schedulers which has a higher priority than this scheduler, in response to the connector allocation demand (R2i...R2k).which is received externally.