5-6
C
HAPTER
5: P
ERFORMING
T
ROUBLESHOOTING
AND
D
IAGNOSTIC
T
ESTS
3
Select
Test Setup
from the
Test
menu.
4
Enable the Group 2 test. Select
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
adapter’s ability to transmit and receive data while on the
network.
CAUTION:
Running the Group 3 test while connected to an
active network can cause intermittent failures. To avoid this,
connect to an inactive network on which only the computer
being tested and the echo server are operating.
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 adapter being tested and echoes them
back to the adapter. The second computer must be equipped
with a 3Com adapter.
Setting Up an Echo Server
If your echo server contains a 3C592 EISA adapter, select
Echo Server
under the
Test
menu, and click the
Start
button to
make the computer an echo server.
If you are setting up an echo server using a 3Com adapter
other than a 3C592 EISA adapter, follow these steps:
1
Select a computer to use as an echo server.
2
Insert the
EtherDisk
diskette in a floppy drive.
The diagnostic program comes on the
EtherDisk
diskette that
accompanied the adapter.
