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:
Apr. 29, 2014

Filed:

Apr. 29, 2011
Applicants:

David Ian Allan, San Jose, CA (US);

Scott Andrew Mansfield, Evans City, PA (US);

Eric Gray, Pitman, NJ (US);

János Farkas, Kecskemét, HU;

Inventors:

David Ian Allan, San Jose, CA (US);

Scott Andrew Mansfield, Evans City, PA (US);

Eric Gray, Pitman, NJ (US);

János Farkas, Kecskemét, HU;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
H04L 47/125 (2013.01); H04L 45/12 (2013.01); H04L 45/121 (2013.01); H04L 45/122 (2013.01); H04L 45/123 (2013.01); H04L 47/2483 (2013.01);
Abstract

A flow classification process is used at the edge of the shortest path bridging network to determine a flow label for attachment to a client frame entering the network. Any of several flow labels can be assigned to a client frame traversing the network to a particular egress node, and the flow labels are used by forwarding nodes to select among multiple equal-cost paths. In several embodiments, the flow label is calculated as a function of the client frame contents, which provide an entropy source for randomizing the selection of the flow label. This entropy source comprises the Internet Protocol (IP) header in the client frame, in some embodiments, but may comprise other client frame content in other cases.


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