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:
Sep. 28, 2010
Filed:
Nov. 29, 2007
Applicant:
Takanori Sasaki, Kawasaki, JP;
Inventor:
Takanori Sasaki, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A WAN node device includes a failure monitoring unit that monitors failure in a first LAN-side input-output unit and a second LAN-side input-output unit. If failure in the first LAN-side input-output unit or the second LAN-side input-output unit is detected, failure is notified to a switching controller. Upon receiving a failure notification, the switching controller selects a normally functioning LAN-side input-output unit. Thus, the WAN node device passes on packets to a LAN-communication linking device via either the first LAN-side input-output unit or the second LAN-side input-output unit selected by the switching controller.