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:
Oct. 23, 2012
Filed:
Jun. 21, 2006
Applicants:
Manabu Fujita, Yokohama, JP;
Masaya Arai, Atsugi, JP;
Ken Watanabe, Kawasaki, JP;
Kensuke Ino, Yokohama, JP;
Inventors:
Manabu Fujita, Yokohama, JP;
Masaya Arai, Atsugi, JP;
Ken Watanabe, Kawasaki, JP;
Kensuke Ino, Yokohama, JP;
Assignee:
Alaxala Networks Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
When the provider edge PEdetects the occurrence of a failure at the access line AL, it sends the label withdraw message to the virtual circuit VC, and when the provider edge PEreceives the label withdraw message sent via the virtual circuit VC, the access line ALis put to a link down state, and when the customer edge CEdetects the link down state of the access line AL, it switches from the normal path to the redundant path.