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:
Sep. 07, 2010
Filed:
Apr. 18, 2008
Derrick L. Garmire, Kingston, NY (US);
Jay R. Herring, Poughkeepsie, NY (US);
Ronald A. Linton, Rhinebeck, NY (US);
Scot H. Rider, Pleasant Valley, NY (US);
Derrick L. Garmire, Kingston, NY (US);
Jay R. Herring, Poughkeepsie, NY (US);
Ronald A. Linton, Rhinebeck, NY (US);
Scot H. Rider, Pleasant Valley, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method is provided for packet flow control for a switching node of a data transfer network. The method includes actively managing space allocations in a central queue of a switching node allotted to the ports of the switching node based on the amount of unused space currently available in the central queue. In a further aspect, the method includes separately tracking unallocated space and vacated allocated space, which had been used to buffer packets received by the ports but were vacated since a previous management update due to a packet being removed from the central queue. Each port is offered vacated space that is currently allocated to that port and a quantity of the currently unallocated space in the central queue to distribute to one or more virtual lanes of the port.