Time-to-Live (TTL) - Network Encyclopedia

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Time To Live is also known as TTL or HOP LIMIT.

Learn what it is and how TTL works.

Time to Live on IP Packets

Default TTL and Hop Limit Values

Time To Live and DNS Caching

Time to Live in HTTP
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Very good Explanation!


TTL is one of the most mis-understood concept in networking, I have tried to answer all the questions below about TTL.

How TTL works?

When exactly TTL is decremented?

TTL decremented at ingress or egress?

When packet is dropped?


Demystifying IP TTL

Demystifying IP TTL Quiz Scenario 1 Lab

Demystifying IP TTL Quiz Scenario 2 Lab

Demystifying IP TTL Quiz Scenario 3 Lab


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so if i want users to how updated information, i want to set my ttl to a low value, and if my information is mostly static, i want to set it to a higher value to lower fetching?

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