What is TTL?

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TTL (Time to live) is a mechanism that is designed to limit how long data lives in a computer or a network.

TTL can be implemented as either having a counter or timestamp attached or embedded in the data in order to ensure that data is discarded once the correct time is reached.

The purpose of this is to make sure that a data packet, or packets, won’t be circulating indefinitely in a computer network or in an application. Basically, TTL is useful for keeping your systems in good order as it improves the performance of caching and it can also help to improve privacy.

Where can TTLs be found?

Technology Term:

Time To Live

Standard Definition Exists?

A mechanism that limits the lifespan or lifetime of data in a computer or network.

Accepted Acronym:

TTL

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