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:
Aug. 15, 1995
Filed:
Mar. 22, 1994
Robert W Burton, Rochesher, MN (US);
William A Hammond, Jr, Rochesher, MN (US);
John C Willis, Rochesher, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A stale packet removal apparatus and method are provided for a digital processing system of the type having multiple devices that communicate via a plurality of unidirectional rings. Each requesting device sets a traversal count value in a packet and then sends the packet. When the packet is received at an agent, the agent changes the traversal count value and sends the packet onto another of the unidirectional rings. When a device receives the packet, the device identifies the traversal count value and discards the packet responsive to a predefined traversal count value.