Failure system for domain name system client
US8103915B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Feb 12, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/58
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method performed by a domain name service client includes storing DNS entries in a local cache; sending a DNS query to another device to obtain an update to one of the DNS entries; determining whether a DNS response is received; and resetting a time-to-live (TTL) timer associated with the one of the DNS entries when the DNS response is not received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.