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:
Oct. 26, 2010
Filed:
Sep. 22, 2008
William R. George, Minneapolis, MN (US);
Steven M. Betker, Shoreview, MN (US);
William R. George, Minneapolis, MN (US);
Steven M. Betker, Shoreview, MN (US);
QLogic Switch Products, Inc., Eden Prairie, MN (US);
Abstract
The Fibre Channel Credit Extender (FCCE) () is a network device that is disposed between and connected to an end node () and an optical repeater (). The FCCE () contains as many buffer credits as necessary, to solve bandwidth problems in a network. In a situation where maximum bandwidth is required in both directions of a link, the FCCE () breaks a single logical link into three physically separated 'linklets.' The short-distance linklets attain maximum bandwidth by use of the existing buffer credits of the end nodes. The long-distance linklet attains maximum bandwidth by use of very high receive buffer credits in the FCCEs (). In this way, only those links that need maximum bandwidth over distances not covered by end-node credit counts need be attached to an FCCE (). The FCCE () contains the optical repeater to gain distance on that link, and contains high credit count receive buffers to gain bandwidth on the link. All other ports of the switch can have smaller and less expensive receive buffers.