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:
Sep. 10, 2019

Filed:

Aug. 21, 2017
Applicant:

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

Inventors:

Michael Feng, Mountain View, CA (US);

Anurag Agrawal, Santa Clara, CA (US);

Yi Li, Fremont, CA (US);

Assignee:

BAREFOOT NETWORKS, INC., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/869 (2013.01); H04L 12/861 (2013.01); H04L 12/935 (2013.01);
U.S. Cl.
CPC ...
H04L 47/60 (2013.01); H04L 49/3036 (2013.01); H04L 49/3063 (2013.01); H04L 49/9057 (2013.01);
Abstract

Some embodiments provide a method for scheduling a packet to be dequeued to a processing pipeline of a hardware forwarding element. The method selects a node representing one of multiple ports associated with the processing pipeline. For each of one or more layers of logical queues, the method (i) identifies a set of logical queue nodes associated with a previously selected node based on a configuration that maps multiple physical queues to the multiple ports via the one or more layers of logical queues and (ii) selects one of the identified logical queue nodes based on properties of the identified logical queue nodes. The method selects one of a set of physical queues associated with a selected logical queue node of the last layer of logical queues. The method dequeues a next packet from the selected physical queue for processing by the processing pipeline.


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