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:
Jul. 04, 2017

Filed:

Feb. 25, 2015
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Chunghan Lee, Kawasaki, JP;

Yukihiro Nakagawa, Kawasaki, JP;

Takeshi Shimizu, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/801 (2013.01); H04L 12/863 (2013.01); H04L 12/835 (2013.01);
U.S. Cl.
CPC ...
H04L 47/29 (2013.01); H04L 47/115 (2013.01); H04L 47/30 (2013.01); H04L 47/621 (2013.01); H04L 47/33 (2013.01);
Abstract

A switch device includes a receiving buffer, a switching processing unit, a determining unit, a generating unit, and a transmitting unit. The receiving buffer receives a data packet from a communication device. The switching processing unit stores the data packet received by the receiving buffer to one of a plurality of output queues provided for respective transmission ports based on the destination. The determining unit determines whether the amount of data in the output queues is equal to or more than a predetermined threshold. If the determining unit determines that the amount of data in any one of the output queues is equal to or more than the predetermined threshold, the generating unit generates a notifying packet for notifying that congestion has occurred. The transmitting unit transmits the notifying packet generated by the generating unit to another switch device.


Find Patent Forward Citations

Loading…