Network
Test Setup
For network loopback testing, the port must be unplumbed.
For complete loopback testing of the network port, use an external
loopback connector. Building Test Connectors has
a list of supported network loopback connectors.
Note - While performing network loopback testing, ensure that
there are no external cables connected to the port. After you enable
or disable live-network port testing, you must reprobe or restart
the software.