Q

What happens in a loop back?

What happens in a loop back? What does it do?
A loop back is exactly what it sounds like. It sends a signal in a loop. This is commonly used to test interfaces or Point-to-Point troubleshooting. For example, the loop back address on your PC is always 127.0.0.1. To do your own loop back test you could ping 127.0.0.1. If this fails then your network card is not installed correctly or bad.
This was last published in May 2003

Dig Deeper on Network Administration

PRO+

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

SearchSDN

SearchEnterpriseWAN

SearchUnifiedCommunications

SearchMobileComputing

SearchDataCenter

SearchITChannel

Close