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:
Jan. 28, 2020
Filed:
Jun. 23, 2017
Cisco Technology, Inc., San Jose, CA (US);
Mark Allen Webb, Troy, MI (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
In one embodiment, a method comprises a network device receiving one or more unsolicited data packets output by a plurality of source network devices, each unsolicited data packet comprising a corresponding link layer header and a corresponding network layer header; the network device parsing, from each unsolicited data packet within at least one of its corresponding link layer header or corresponding network layer header, a time type-length-value (TLV) element specifying a corresponding transmission time of the data packet from one or more corresponding source network devices, and a location TLV element specifying a corresponding location of the corresponding one or more source network devices; and the network device determining its corresponding location based on the time TLV elements and the location TLV elements parsed from the respective unsolicited data packets.