Ethernet SNMP Module Installation and Reference Guide ( J2603B) 1995-10

The primary tools for troubleshooting the SNMP Module are the LEDs

on the front of the hub and, in some cases, the single LED on the SNMP

Module in combination with the LEDs on an auxiliary module. The

location of these LEDs are described on the next page.

Diagnosing With the LEDs

1. When the hub is first powered on or when it is reset, it executes its

self test and also causes the SNMP Module and any auxiliary module

to execute their self tests. If only the SNMP Module is installed, the

self test should take up to 40 seconds. If an auxiliary module is also

installed, the self test may take up to 60 seconds. During the self test

of the modules, the Exp Slot LED on the front of the hub flashes.

If you suspect improper operation of the SNMP or auxiliary module,

you can reset the hub and use the self test results to verify the

module status.

2. If beyond the self test time the Exp Slot LED continues to flash

instead of turning continuously ON, there may be an error condition

on the HP Ethernet SNMP Module and/or the auxiliary module.

• If only the SNMP Module is installed, proceed to step 3.

• If an auxiliary module is also installed, more information on the

cause of the self test failure may be available by viewing the hub’s

Expansion Slot cover plate. If the Fault LED on the SNMP

Module is visible and is ON, the SNMP Module has failed its self

test. In this case, ignore any LEDs on the auxiliary module. If the

Fault LED on the SNMP Module is OFF, the SNMP Module has

passed its self test; the problem may be with the auxiliary

module. If there are LEDs on the auxiliary module, check them

for indications of failure. See your auxiliary module

documentation for more information.

3. Verify that the modules are installed correctly. If they are installed

incorrectly, repeat the installation procedure, taking special care to

ensure that any auxiliary module is properly connected to the SNMP

Module, and that the SNMP Module’s hub connector is firmly seated

in the connector at the back of the hub’s Expansion Slot.

4. If repeating the installation procedure does not rectify the problem

and the Exp Slot LED on the hub still fails to stay continuously ON,

contact your HP-authorized LAN dealer or HP representative for

replacement information.

Troubleshooting

3-2