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:
Aug. 26, 1997
Filed:
Oct. 19, 1995
Robert L Townsend, Sioux City, IA (US);
Luo-Jen Chiang, Freehold, NJ (US);
NCR Corporation, Dayton, OH (US);
Abstract
A network management system includes at least two network management stations. One of the stations is set as a main network management station, and the other is set as a backup network management station. The data packets are delivered to the two network management stations simultaneously. When the main network management station is in proper operational condition, it is set in an active mode by activating its IP and MAC addresses to the addresses that are assigned to it, and the backup network management station is set in an inactive mode by deactivating its IP and MAC addresses, so that only the main network management station can act upon the incoming data packets. When the main network management station is about to fail, the backup network station is set to the active mode by activating its IP and MAC addresses to the addresses that have been assigned to the main network management station, so that it can act upon the incoming data packets after the main network management station has failed.