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:
Mar. 24, 2015

Filed:

Oct. 08, 2009
Applicants:

Sathish Kumar Gnanasekaran, Sunnyvale, CA (US);

Shashank Tadisina, San Jose, CA (US);

Subramanian Lakshmanan, San Jose, CA (US);

Ethan John Cardwell, Erie, CO (US);

Inventors:

Sathish Kumar Gnanasekaran, Sunnyvale, CA (US);

Shashank Tadisina, San Jose, CA (US);

Subramanian Lakshmanan, San Jose, CA (US);

Ethan John Cardwell, Erie, CO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/931 (2013.01); H04L 12/713 (2013.01);
U.S. Cl.
CPC ...
H04L 49/357 (2013.01); H04L 45/586 (2013.01); H04L 49/00 (2013.01); H04L 49/70 (2013.01);
Abstract

A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.


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