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:
May. 13, 2008
Filed:
Oct. 30, 2002
Yoshihiko Suemura, Tokyo, JP;
Yoshihiko Suemura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a communications network where first and second nodes are interconnected by communication links, a source node transmits a path setup message for requesting a traffic path to a destination node. Each of the first and second nodes includes routing control means for establishing first and second transport paths on a first fault recovery layer between the first and second nodes. The first node further includes a database for storing identities of the first and second paths as a single virtual link as viewed from the source node. The first node responds to the path setup message from the source node for establishing the traffic path on a second fault recovery layer through the first transport path. The first and second nodes accommodate the traffic path through the second transport path when the first transport path is not working properly.