Networking 1 min read

Loopback Test

Last Updated May 24, 2021 1:47 pm

A diagnostic procedure in which a signal is transmitted and returned to the sending device after passing through all or a portion of a network or circuit. The returned signal is compared with the transmitted signal in order to evaluate the integrity of the equipment or transmission path. A computer needs a loopback plug that is inserted into a port in order to perform a loopback test.

Was this Article helpful? Yes No

Thank you for your feedback. 0% 0%

About the author

Webopedia Staff

Since 1995, more than 100 tech experts and researchers have kept Webopedia’s definitions, articles, and study guides up to date. For more information on current editorial staff, please visit our About page.