| Subject | English | German |
| commun. | local loopback address | lokale Loopback-Adresse |
| comp., MS | loopback address | Loopbackadresse (The address of the local computer used for routing outgoing packets back to the source computer. This address is used primarily for testing) |
| commun. | loopback application | Prüfschleifen-Anwendung (ITU-T (CCITT) I.430) |
| commun. | loopback field | Prüfschleifenfeld |
| commun. | loopback function | Schleifenfunktion |
| commun. | loopback function | Prüfschleifenfunktion |
| commun. | loopback message | Schleifennachricht |
| commun. | loopback request | Prüfschleifenanforderung (ITU-T (CCITT) I.431) |
| commun. | loopback requesting point | Prüfschleifen-Anforderungspunkt (ITU-T (CCITT) I.430) |
| IT | loopback test | Rückschleifentest |
| IT | loopback test | Fehlerkontrolle mit Rückübertragung |
| commun., tech. | loopback test | Rückschleifen-Test |
| CNC | loopback test | Rückführungsprüfung |
| commun. | loopback,to | zurückschleifen |
| commun. | loopback type | Prüfschleifen-Art (ITU-T (CCITT) I.430) |