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:
Dec. 31, 2013
Filed:
Jan. 10, 2007
Masatoshi Suzuki, Fussa, JP;
Hiroyuki Ibe, Yokohama, JP;
Tazuko Tomioka, Kawasaki, JP;
Kyosuke Dobashi, Higashimurayama, JP;
Hiroyuki Inamura, Hachioji, JP;
Masatoshi Suzuki, Fussa, JP;
Hiroyuki Ibe, Yokohama, JP;
Tazuko Tomioka, Kawasaki, JP;
Kyosuke Dobashi, Higashimurayama, JP;
Hiroyuki Inamura, Hachioji, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A protection path reservation method which reserves protection paths to avoid a node failure for each transmission path on a network formed of a plurality of nodes, comprising assuming the nodes as an imaginary failure node in turn in a condition in which the node failure is not present in the network, and selecting N neighbor nodes connected to the imaginary failure node through N links, wherein the imaginary failure nodes sequentially transmit protection path reservation request messages to neighbor nodes, and the nodes which have received the protection path reservation request messages sequentially, one by one, reserve N−1 protection paths starting from the nodes.