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. 13, 2007
Filed:
Jun. 20, 2003
Douglas L. Sandy, Chandler, AZ (US);
Charles C. Hill, Gilbert, AZ (US);
Douglas L. Sandy, Chandler, AZ (US);
Charles C. Hill, Gilbert, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
In a distributed switch fabric network () having a first node () having a first node transceiver port () and a second node () having a second node transceiver port (), link level flow control () operating between the first node transceiver port and the second node transceiver port to in response to a congestion condition () in the second node transceiver port, wherein the link level flow control suspends transmission of one of a plurality of priority levels of packets () on a channel from the first node transceiver port to the second node transceiver port. The one of the plurality of priority levels of packets accumulates in one of a plurality of a transmit buffers () of the first transceiver port, where the one of the plurality of transmit buffers corresponds to the one of the plurality of priority levels of packets. Per-flow flow control () operates to modify transmission of the one of the plurality of priority levels of packets to the transmit buffer if the transmit buffer reaches a transmit threshold value (). Link level flow control operates transparently to a traffic manager () of the first node if the congestion condition occurs and the one of the plurality of transmit buffers fails to reach the transmit threshold value.