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. 04, 2013

Filed:

Jun. 21, 2010
Applicants:

Kenji Fujihira, Yokohama, JP;

Takumi Oishi, Kodaira, JP;

Shinya Fujioka, Kawasaki, JP;

Inventors:

Kenji Fujihira, Yokohama, JP;

Takumi Oishi, Kodaira, JP;

Shinya Fujioka, Kawasaki, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A packet transport system to which the present invention is applied includes an edge node accommodating an access network at an edge, and a core node of carrying out a processing of assorting a frame gathered from a plurality of the edge nodes, the edge node provides a label to the frame flowing in from the access network, and the packet transport system transmits the frame in reference to the label. The edge node includes a priority information providing portion of changing a piece of priority information provided to the frame flowing in from the access network in accordance with a congested state of the core node, and a priority previously set to a path specified by the label.


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