The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 1997
Filed:
Oct. 25, 1995
Ange Aznar, Saint Laurent du Var, FR;
Jean Calvignac, La Gaude, FR;
Daniel Orsatti, Cagnes Sur Mer, FR;
Dominique Rigal, Nice, FR;
Fabrice Verplanken, La Gaude, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A multicasting apparatus and method for an Asynchronous Transfer Mode (ATM) switch is described, which uses a single target port (TP) vector attached to each outgoing ATM cell. The target port vector contains identifiers of each port to which the cell has to be transmitted. After transmission of the cell, the identifier relating to respective target port is erased from the TP vector. Hence the TP vector contains only identifiers of target port to which the cell has not yet been transmitted. When the TP vector contains no identifiers, the storage location at which the ATM cell is stored during the transmission, is freed for another cell. Unicast and multicast traffic are treated identically.