3Com SuperStack II, NETBuilder SI Specify the number of seconds that the test should run using

138APPENDIX A: TROUBLESHOOTING

5Specify the number of seconds that the test should run using:

DLTest TestDuration <seconds>

If you do not enter a value, the test will run indefinitely. However, use caution when running the test for a specified duration. The test ends abruptly as soon as the time duration expires, and a discrepancy between the number of packets transmitted and the number received may result.

6Start the loopback test by entering:

DLTest START

If the number of received packets equals or approximately equals the number of transmitted packets, your line has passed the loopback test. If your line does not pass the test, verify that the software is configured correctly. Also, check the number of packets transmitted and the number of errors by entering:

DLTest STATistics

7Stop the loopback test by entering:

DLTest Abort

8Restore the owner of the wide area port you are testing from loopback to your protocol using:

SETDefault !<port> -PORT OWNer = PPP FrameRelay SMDS Auto

Failure to perform this step causes the port to remain in loopback mode preventing connectivity through the port. Performing diagnostics on the port will reveal only that the port is down.