TTL
Revision as of 04:05, 28 February 2019 by DoesItReallyMatter (talk | contribs) (Create glossary page, linking to Wikipedia after writing to avoid close paraphrasing)
TTL or Time to live is a number used to prevent data from circulating indefinitely.
For each hop in a network the data passes through, the TTL value is decreased by one; when it reaches zero, the packet of data is discarded. In this way, endless loops are broken (such as host A sending data to host B sending data to host C sending data back to host A).
The default TTL value between operating systems differs, but it may not be greater than 255.
