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:
Nov. 07, 2006

Filed:

Mar. 13, 2002
Applicants:

Kazuya Ikeda, Kawasaki, JP;

Katsuichi Ohara, Yokohama, JP;

Masanobu Miyamoto, Yokohama, JP;

Inventors:

Kazuya Ikeda, Kawasaki, JP;

Katsuichi Ohara, Yokohama, JP;

Masanobu Miyamoto, Yokohama, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

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

A network topology collection device determining a network topology which indicates a connection state of a route prepares opposed topology information which indicates the connection state between a collection node to which the network topology collection device itself belongs and opposed nodes which respectively terminate routes terminated by the collection node, collects opposed topology information of a node directly or indirectly routed to the collection node, and determines a topology of an entire network based on the opposed topology information collected. Also, in a hierarchized route, the collection device determines a network topology of a route in a specific hierarchy based on opposed topology information in the hierarchy and opposed topology information of a route in another hierarchy.


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