Method for controlling a flow of data cells into a plurality of asynchronously time-divided transmission channels with a single admission switch for transmission in the channels with reference to the state of a plurality of count values

摘要

Method and device for monitoring a downstream transmission medium which comprises a multiplicity of virtual, asynchronously time-shared transmission channels via which a data flow can be transmitted. The data flow is composed of data cells comprising a control word group (header) and an information word group. The header is read out in a monitoring device. On the arrival of a data cell, a number of variables is incremented and processed to produce a corresponding number of assessment signals. Each data cell header gives an indication of those variables which have to be incremented and processed, and of the mutation (incremention) and assessment algorithms to be used in doing so. Furthermore, one or more of the assessment signals are processed in accordance with a combination algorithm, deduced from the data cell header too, to form a control signal.