If you're only using loopback, you don't have a network address.

In this case you can run the loopback tests on individual ports.

If you plan to have more than one process or user "listening", loopback must be enabled.

Assuming the card passes all the test, press 'p' for external loopback.

Press any key to stop the loopback test.

Note: Some ancient versions of mount are not able to deal with loopback devices.

In the sample output below, port 2 has a loopback device connected.

This is called the loopback address, and is purely an internal test.

Thus, the services that ultimately receive them can respond according to the specified loopback destination.

Packets received on an interface with a loopback destination address must be dropped.

This is referred to as loopback or software loop.

Analyse - allows you to run Monitor and Loopback tests.

We’re getting some satellite delay on the loopback.

Plug the loopback plug to the port and they should change from red to green.

Plug the ethernet loopback into the appropriate port and ensure the status changes.

An internal data loopback test is also performed to verify the RS232 driver operation.

Analyze - monitor or run loopback diagnostics on the currently selected port.

It has loopback and bit error test facilities.

Do you plan to only use loopback?

A loopback test verifies that your computer's network settings are properly configured.

Local and remote loopback facility for the 8Mbps stream for diagnostics.

In order to use loopback devices you need specially modified mount and unmount programs.

However, you only want to execute ifconfig and route commands for the loopback device.

A commonly used version of loopback testing does not involve any special capability of either end.

A serial communications transceiver can use loopback for testing its functionality.