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:
Nov. 26, 2002
Filed:
Dec. 08, 1998
Applicant:
Inventors:
Virendra Kumar Budhraja, Petaluma, CA (US);
Richard F. Sustek, Petaluma, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/5173 ; H04L 1/22 ;
U.S. Cl.
CPC ...
G06F 1/5173 ; H04L 1/22 ;
Abstract
Replacing the functionality of an active digital loop carrier subsystem (DLCSS) or active module with a standby DLCSS or standby module in an IP addressable telecommunication switch is effected by providing only a single externally-known IP address for the module pair and then swapping the IP address of the active module for the IP address of the standby module so that externally-connected devices recognize only the IP address for the module in use. A central network management station in communication with a local nonvolatile memory element controls the IP address swapping.