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. 27, 2016
Filed:
Jan. 17, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
David A. Christenson, Fergus Falls, MN (US);
Josep Cors, Rochester, MN (US);
Ward R. Nelson, Stewartville, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/939 (2013.01);
U.S. Cl.
CPC ...
H04L 43/10 (2013.01); H04L 43/026 (2013.01); H04L 43/50 (2013.01); H04L 49/55 (2013.01);
Abstract
Systems and methods to analyze layer-2 data frame switch forwarding are provided. A first switch may be coupled to a second switch. The first switch may maintain state information mirroring the state of the second switch. A sequence number may be appended to a data frame that is received at the first switch. Forwarding compliance of the second switch may be determined by analyzing a runtime attribute of the first switch.