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. 04, 2012
Filed:
Sep. 17, 2007
Andrew Danforth, Herndon, VA (US);
Kenneth Gould, Oakton, VA (US);
Christopher Williams, Potomac Falls, VA (US);
Andrew Danforth, Herndon, VA (US);
Kenneth Gould, Oakton, VA (US);
Christopher Williams, Potomac Falls, VA (US);
Time Warner Cable, Inc., New York, NY (US);
Abstract
The detection of devices with duplicate media access controller (MAC) addresses in a cable network may be accomplished by reference to a value indicative of a DOCSIS version supported by the device or by reference to a having a MAC address/giaddr pair. Where a version value is used, the detection of devices having duplicate MAC addresses looks for changes in the reported version value from a higher version to a lower version. Where MAC address/giaddr pairs are used, a centralized storage of historical cable modem MAC address/giaddr pair data is used to identify cable modems (CM's) that report duplicate MAC addresses. If duplication is detected, an appropriate remedial response is taken.