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:
Mar. 03, 2015
Filed:
Mar. 29, 2012
Eiji Sugawara, Yokohama, JP;
Eiji Sugawara, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A ring network of a multicast label switch path scheme includes a transmitting node and receiving nodes connected to form a ring. A signal input to the transmitting node is branched to be transmitted in first and second different directions to first and second receiving nodes through first and second working paths, respectively, in the ring network. The first and second receiving nodes define terminal points of the first and second working paths, respectively, from the transmitting node. A first backup path is set from the first receiving node to the transmitting node, and a second backup path is set from the second receiving node to the transmitting node. The first backup path is in an opposite direction to the first working path and the second backup path is in an opposite direction to the second working path.