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.

Date of Patent:
Dec. 17, 2002

Filed:

Dec. 04, 2000
Applicant:
Inventors:

Sam Su, Irvine, CA (US);

David Baldwin, Irvine, CA (US);

Qing Xue, Irvine, CA (US);

Hossein Hashemi, Mission Viejo, CA (US);

Assignee:

Emulex Corporation, Costa Mesa, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/242 ; H04L 1/2403 ;
U.S. Cl.
CPC ...
H04L 1/242 ; H04L 1/2403 ;
Abstract

A hub port in a Fibre Channel loop for detecting and bypassing attached node ports in an OLD-PORT state is disclosed. The hub port includes a hub data source, a detect circuits, and an output control circuit. The hub data source supplies data to the hub port from a Fibre Channel loop. The detect circuit is configured to detect a valid non-Arbitrated Loop sequence from an attached node port indicating that the node port is in an OLD-PORT state. The output control circuit operates to bypass the node port from the loop when the valid non-Arbitrated Loop sequence is detected.


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