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:
Jun. 26, 2001
Filed:
Jul. 24, 1998
Applicant:
Inventor:
Shuji Ohno, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/24 ;
U.S. Cl.
CPC ...
H04L 1/24 ;
Abstract
A label switching router which includes a data relay controller for transferring IP datagrams and controlling the transfer, detecting any transfer IP datagram satisfying a particular condition, and controlling an ATM switch based on a detection result and an ATM switch for switching between adjacent nodes for transferring ATM cells. An operation state of the data relay controller is monitored and a user-specified VP route is set to the ATM switch according to a fault circumventing route table, thereby continuing communication between the adjacent nodes on both side of this ATM switch if a fault occurs on the data relay controller.