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. 10, 2010
Filed:
Jun. 21, 2004
Steven G. Schmidt, Westampton, NJ (US);
Anthony G. Tornetta, King of Prussia, PA (US);
Harry V. Paul, Haddonfield, NJ (US);
Henry J. Gonzalez, Belle Mead, NJ (US);
Steven G. Schmidt, Westampton, NJ (US);
Anthony G. Tornetta, King of Prussia, PA (US);
Harry V. Paul, Haddonfield, NJ (US);
Henry J. Gonzalez, Belle Mead, NJ (US);
McData Services Corporation, San Jose, CA (US);
Abstract
A method and apparatus is disclosed for temporarily deferring transmission of frames to a destination in a data switch. When a request for transmission of a frame to the destination port is received, the congestion status of that destination is determined. If the destination is congested, the frame is stored in a deferred queue. When the status of a destination changes from congested to non-congested, the deferred queue is examined to see if any deferred frames can now be forwarded to their destination. While examining the deferred queue, incoming frames are placed on a backup queue. When the deferred queue is fully analyzed, the backup queue is emptied by either sending those frames to their destination or storing the frames in the deferred queue. While examining the deferred queue, the congested states of the destinations are not allowed to change from congested to non-congested.