Domain name system analysis on edge network devices
US11637807B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2022 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for analyzing a pair of domain name system (DNS) packets, the method comprising: extracting a portion of a request DNS packet to obtain extracted request DNS information, wherein the extracted request DNS information comprises a first timestamp generated by the edge network device, obtaining a response DNS packet, extracting at least a portion of the response DNS packet to obtain extracted response DNS information, wherein the extracted response DNS information comprises a second timestamp generated by the edge network device, after the obtaining, processing the extracted request DNS information and extracted response DNS information to obtain processed information, wherein the processed information comprises a roundtrip time derived from the first timestamp and the second timestamp, and transmitting the processed information to a monitoring system, wherein the pair of DNS packets are not transmitted to the monitoring system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.