Method of collecting large amounts of data in apparatus such as ATM exchange

摘要

A central control unit responsible for path control collects data from a distribution/concentration unit by issuing thereto a command containing the specification of multiple data items. The command also contains the specification of a window size. Of the requested data, the distribution/concentration unit first transmits data in an amount not exceeding the window size, and then, after reception of an ACK order from the central control unit, transmits remaining data if any.