Patent ID: 6034959
Filing Date: 2000-03-07
Classification: H04L

Abstract:
An ATM switch for receiving cells via plural input lines and executing switching output-of the inputted cells into output lines corresponding to destination information in the cells, comprising:a shared buffer for receiving the cells in the order of input and storing the cells in idle addresses thereof; anda multi-destination delivery number counter for storing a multi-destination delivery number of each inputted cell according to destination information in the cell correlating the multi-destination delivery number with an idle address where the cell is stored, on every writing of a cell into an idle address of the shared buffer, and decrementing the multi-destination delivery number of the cell on every reading of the cell from the shared buffer, the multi-destination delivery numbers of the cells being utilized for management of the switching output of the cells from the shared buffer,said multi-destination delivery number counter detecting addressing errors to the shared buffer according to the multi-destination delivery numbers, on every inputting or outputting of the cells.