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. 28, 2015

Filed:

Jul. 19, 2012
Applicants:

Masayuki Takase, Fujisawa, JP;

Masahiro Kimura, Fujisawa, JP;

Kazuhiro Kusama, Yokohama, JP;

Inventors:

Masayuki Takase, Fujisawa, JP;

Masahiro Kimura, Fujisawa, JP;

Kazuhiro Kusama, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/703 (2013.01); H04L 12/751 (2013.01); H04L 12/707 (2013.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04L 45/02 (2013.01); H04L 45/22 (2013.01);
Abstract

An example of a data transport system includes transport nodes of a transport network, communication devices which communicate via the transport network, and a transport network logical path management server for setting logical paths between the transport nodes within the transport network, and a logical path control server. In a case where a first communication device is newly connected with a first transport node, the first communication device transmits control data to a logical path control server via the first transport node. The logical path control server obtains information about a connection relation between the newly connected first communication device and the first transport node from the control data, and establishes a logical path between the first communication device and a second communication device based on the obtained information about the connection relation and on information about logical paths between transport nodes in a logical path database.


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