Testing The Router's Ports - HP Series 200 Installation Manual

Troubleshooting
Diagnostic Tests

Testing the Router's Ports

The following tests require loopback connectors. The type of loopback
connectors depends on which ports are in use and need testing. See
illustrations and part numbers under "Loopback Connectors" (page
A-20).
To test a WAN port:
1. Detach the router's power cord.
2. Detach the network connection and attach a loopback connector to
each WAN port being tested.
3. Reattach the router's power cord.
4. If the Net Fail LEDs for the tested port light, the port is faulty.
Replace the router. Any other ports that test OK may be usable in
the meantime.
To test a LAN port (802.3/Ethernet or 802.5/token ring):
1. Set the XCVR Signal Polling parameter to ''Active'' for the circuit on
the LAN port to be tested. To access this parameter, use the
Configuration Editor from the console, select item 4 (''Circuits''),
select the desired LAN port, and specify the Circuit Type parameter.
The console then displays the XCVR Signal Polling parameter. (For
information on the XCVR Signal Polling parameter, refer to the
Operator's Reference.).
2. Detach the router's power cord.
3. Detach the network connection and attach an AUI loopback
connector to the port being tested.
4. Reattach the router's power cord.
5. If the Net Fail LED for the tested port lights, the port is faulty.
Replace the router. Any other ports that test OK may be usable in
the meantime.
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