3Com 3C319 Group 2 Diagnostic, Running the Diagnostic Tests, Ring Operations Test, Close NIC Test

9-4CHAPTER 9: TROUBLESHOOTING NIC INSTALLATION

Ring Operations Test

This test assesses communication on the ring. The 3C319 NIC must be attached to the ring to run this test successfully. The 3C319 NIC also must be set to the correct ring speed. Note that this test always fails when you are using a Dedicated Token Ring (DTR) hub.

Close NIC Test

This test verifies the 3C319 NIC’s ability to close the 3C319 NIC and terminate the Ring Operations Test. The 3C319 NIC must have been previously opened.

Group 2 Diagnostic

The Group 2 diagnostic test (NIC Wrap Test) causes all user-transmitted data to be sent and received without going to the network.

A lobe cable must be connected from the selected 3C319 NIC to a retiming concentrator or MAU for the Group 2 test. A lobe cable is the section of cable that attaches a ring station or network device to a MAU or wiring hub.

Running the Diagnostic Tests

The Configuration and Diagnostic Program can be started from the menus or the DOS command line. For command line instructions, see the INSTRUCT.TXT file in the \HELP subdirectory on TokenDisk diskette #1.

1Insert TokenDisk diskette #1 in the floppy drive and type:

a:\ [Enter]

2To start the diagnostic program, type:

3trdiag [Enter]

The Configuration and Diagnostic Program main window appears, as shown in Figure 9-2.

3Use the arrow keys to select the Test pull-down menu shown in Figure 9-2.