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.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Feb. 18, 2005
Akira Nagata, Kawasaki, JP;
Akira Chugo, Kawasaki, JP;
Keiji Miyazaki, Kawasaki, JP;
Hitoshi Ueno, Kawasaki, JP;
Kiyoshi Sugita, Kawasaki, JP;
Takashi Onodera, Kawasaki, JP;
Masahiko Ohashi, Kawasaki, JP;
Akira Nagata, Kawasaki, JP;
Akira Chugo, Kawasaki, JP;
Keiji Miyazaki, Kawasaki, JP;
Hitoshi Ueno, Kawasaki, JP;
Kiyoshi Sugita, Kawasaki, JP;
Takashi Onodera, Kawasaki, JP;
Masahiko Ohashi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A spanning tree creation unit creates a plurality of spanning trees based on the network topology, and registers the spanning trees to a spanning tree information table. A spanning tree selection unit selects a spanning tree wherein communication resources will be used most effectively, out of the plurality of spanning trees registered to the spanning tree information table. A node setup unit sets the mapping information which expresses correspondence between the requested virtual LAN and the selected spanning tree in each node.