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:
Jun. 13, 2017

Filed:

Sep. 15, 2014
Applicant:

Nicira, Inc., Palo Alto, CA (US);

Inventors:

Ethan J. Jackson, San Francisco, CA (US);

Jarno Rajahalme, Belmont, CA (US);

Nicholas Shelly, Palo Alto, CA (US);

Teemu Koponen, San Francisco, CA (US);

Assignee:

NICIRA, INC., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/721 (2013.01); H04L 29/08 (2006.01); H04L 12/935 (2013.01); H04L 12/715 (2013.01); H04L 12/741 (2013.01); H04L 12/747 (2013.01); H04L 12/753 (2013.01);
U.S. Cl.
CPC ...
H04L 45/38 (2013.01); H04L 45/54 (2013.01); H04L 45/64 (2013.01); H04L 49/3009 (2013.01); H04L 67/2842 (2013.01); H04L 45/48 (2013.01); H04L 45/742 (2013.01); H04L 45/745 (2013.01);
Abstract

Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method consults a tree structure to generate a wildcard mask. The consulting includes traversing the tree structure by tracing a set of bits from the packet header and un-wildcarding the corresponding set of bits from the wildcard mask. The method identifies a matching rule for the packet. The method generates a flow based on the matching rule and the wildcard mask. The flow is used to process each other packet that matches each un-wildcarded bit of the flow.


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