Time-to-Live Value
(Redirected from TTL)
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A Time-to-Live Value is a positive number that defines the time period that some data item will exist.
- See: DNS Record, Temporal Data.
References
2012
- http://en.wikipedia.org/wiki/Time_to_live
- Time to live (TTL) is a mechanism that limits the lifespan or lifetime of data in a computer or network. TTL may be implemented as a counter or timestamp attached to or embedded in the data. Once the prescribed event count or timespan has elapsed, data is discarded. In computer networking, TTL prevents a data packet from circulating indefinitely. In computing applications, TTL is used to improve performance of caching or improve privacy.