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Networking Fundamentals

Understanding Round-Trip Time (RTT)

Published on Nov 07, 2025 Updated on Aug 01, 2026 5 views

RTT measures the total time for a signal to travel to a destination and for the response to travel back — a full round trip, not just one direction.

Why the Round Trip Matters

Most practical network interactions (like loading a webpage) inherently require a response, making RTT often more relevant than one-way latency alone.

Measuring It

The ping command reports RTT directly, giving a quick, practical sense of how responsive a connection to a given server actually is.

Further Reading


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