PictureTel III ISA Running the Group 3 Test, Starting the Group 2 Test, Setting Up an Echo Server

6-4CHAPTER 6: WINDOWS 3.X TROUBLESHOOTING

Starting the Group 2 Test

Follow these steps to run the Group 2 test on either the 3C509B-TPC or 3C509B-COMBO NIC:

1Connect the loopback plug to the round BNC connector on the NIC.

2Start the Configuration and Diagnostic Program,

as described in “Starting the DOS Configuration and Diagnostic Program” earlier in this chapter.

3From the Test menu, select Test Setup.

4Enable the Group 2 test. Select OK and press Enter.

5Go to the Run Tests dialog box to start the tests.

6After the test is completed:

a Exit the Configuration and Diagnostic Program. b Remove the loopback plug.

Running the Group 3 Test

The Group 3 test is the Echo Exchange Test. It tests to see if the NIC can transmit and receive data while connected to the network. If you have successfully run the Group 1 and Group 2 tests, a failure in the Group 3 test usually indicates a cabling, hub, or network problem.

CAUTION: Do not use an active network to run the Group 3 test.

To run the Group 3 test on the network, you need a second PC to serve as an echo server, and it must have a 3Com NIC installed. The echo server receives packets from and echoes packets back to the NIC being tested. The diagnostic program provided with the NIC supports the 3C509B echo server diagnostic program.

Setting Up an Echo Server

Follow these steps to set up an echo server:

1Insert the EtherDisk diskette for the echo server NIC in drive A of the echo server.

2Start the diagnostic program on the echo server.

The diagnostic program that you use is dictated by the NIC that is installed in the echo server. See Table 6-1. At the DOS prompt, enter the diagnostic program name for the associated NIC.