Starting The Group 2 Test; Running The Group 3 Test - 3Com EtherLink III User Manual

Starting the Group 2 Test

To run the Group 2 test on the 3C509B-TPC and
3C509B-COMBO NICs, follow these steps:
1 Connect the loopback plug to the round BNC
connector on the back of the NIC.
2 Start the Configuration and Diagnostic Program,
as described earlier in this chapter.
3 Select Test Setup from the Test menu.
4 Enable the Group 2 test. Highlight OK and
press [Enter].
5 Go to the Run Tests dialog box to start the tests.
6 After 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 called the Echo Exchange Test. It tests
the NIC's ability to transmit and receive data while on
the network.
A failure in this test is likely to indicate a configuration
problem only.
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 computer set up as an echo server. The echo
server receives packets from the NIC being tested and
echoes them back to the NIC.
The second computer must be equipped with a 3Com
NIC. The diagnostic program that comes with the NIC
supports the 3C509B echo server diagnostic program.
Starting the Diagnostic Program 5-5