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:
May. 29, 2018

Filed:

Apr. 17, 2017
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Junlan Zhou, Sunnyvale, CA (US);

Zhengrong Ji, Sunnyvale, CA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); H04J 1/16 (2006.01); H04L 1/00 (2006.01); H04B 7/00 (2006.01); H04L 12/801 (2013.01); H04L 12/723 (2013.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 47/12 (2013.01); H04L 43/062 (2013.01); H04L 45/50 (2013.01); H04L 47/11 (2013.01);
Abstract

A system and method is provided for sending congestion notification messages through L3 networks and implementation of QCN in L3 switches. For example, according to this system and method, an L3 switch receives one or more data packets, and determines, based on the received one or more data packets, whether the L3 switch is congested. If the L3 switch is congested, it generates a congestion notification message, the congestion notification message including an Internet Protocol (IP) header, the IP header identifying a source of the one or more received data packets as its destination. The L3 switch sends the congestion notification message to the source of the one or more received data packets using information in the IP header.


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