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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.:

US 11750526 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

Dec. 24, 2020

Using stateful traffic management data to perform packet processing

Applicant:

Barefoot Networks, Inc., Santa Clara, CA (US);

Inventors:

Yi Li, Fremont, CA (US);

Michael Feng, Mountain View, CA (US);

Anurag Agrawal, Santa Clara, CA (US);

Jeongkeun Lee, Los Altos, CA (US);

Changhoon Kim, Palo Alto, CA (US);

Remy Chang, Milpitas, CA (US);

Assignee:

Barefoot Networks, Inc., Santa Clara, CA (US);

Attorneys:

Essential Patents Group, LLP

Christopher K. Gagne

Primary Examiner:

Eric Nowlin

Int. Cl.
CPC ...
H04L 47/625 (2022.01); H04L 45/7453 (2022.01); H04L 41/142 (2022.01); H04L 49/00 (2022.01); H04L 43/0882 (2022.01); H04L 43/16 (2022.01); H04L 45/00 (2022.01); H04L 45/745 (2022.01); H04L 45/24 (2022.01); H04L 47/32 (2022.01); H04L 47/628 (2022.01); H04L 49/109 (2022.01); H04L 47/62 (2022.01); H04L 49/90 (2022.01); H04L 69/22 (2022.01); H04L 49/101 (2022.01); H04L 12/18 (2006.01);
U.S. Cl.
CPC ...
H04L 47/6255 (2013.01); H04L 41/142 (2013.01); H04L 43/0882 (2013.01); H04L 43/16 (2013.01); H04L 45/245 (2013.01); H04L 45/72 (2013.01); H04L 45/745 (2013.01); H04L 45/7453 (2013.01); H04L 47/32 (2013.01); H04L 47/62 (2013.01); H04L 47/628 (2013.01); H04L 49/109 (2013.01); H04L 49/3063 (2013.01); H04L 49/90 (2013.01); H04L 69/22 (2013.01); H04L 12/1886 (2013.01); H04L 49/101 (2013.01);
Abstract

Some embodiments provide a method for an ingress packet processing pipeline of a network forwarding integrated circuit (IC). The ingress packet processing pipeline is for receiving packets from a port of the network forwarding IC and processing the packets to assign different packets to different queues of a traffic management unit of the network forwarding IC. The method receives state data from the traffic management unit. The method stores the state data in a stateful table. The method assigns a particular packet to a particular queue based on the state data received from the traffic management unit and stored in the stateful table.

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