loopback

Signal returns home

Loopback is a network connection that routes signals back to their source without reaching external systems.

It's used for testing and diagnostics—a loopback address lets a computer send data to itself: I pinged the loopback to check if the network stack was working.

The term extends to any signal path that returns to its origin: a loopback test, a loopback cable.

networking

localhost

Device's own hostname

  • pingBrief metallic tone
  • interfaceShared connection point
  • adapterDevice enabling equipment compatibility

subnet · router · firewall · latency · bandwidth · traceroute · hostname · packet · TCP/IP · diagnostics

electronics

circuit

Closed electrical pathway

cable · plug · jack · patch · self-test · continuity · adapter · shielding · RCA · XLR

iteration

recursion

Process invoking itself

algorithm · self-reference · repetition · circular · convergence · processing · increment · reiterative · sequence

audio

feedback

Returned response data

amplifier · microphone · headphones · mixing · latency · DAW · cue · monitoring · soundcheck · recording

Categories
Opposites
network routing direction

loopbackoutbound

Headed away from origin

forward · egress · passthrough · external · remote

communication target

loopbackremote host

Networked computer elsewhere

WAN · upstream · downstream · client-server · LAN

Family

back, loop, backing, backed, loops

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G