Troubleshooting - HP ProCurve 2424M Installation Manual

Troubleshooting

The primary tools for troubleshooting the switch modules are the LEDs on the
front of the switch and on the module. Refer to "LED Behavior" on page 7.
Also, refer to the Installation Guide and the Management and Configuration
Guide shipped with the switch, for more detailed troubleshooting informa-
tion.
The following tables describe switch and module LED displays that indicate
that the module or connections to the ports on the module are not operating
correctly.
Switch and Module LED Error Indicators:
Diagnostic Tips:
Tip
Number Problem
The module is not
installed properly
in the slot or has
become partly
removed during
switch operation.
Fault Self Test Module Status
† †
Flashing Flashing
Off Off
† †
Flashing Flashing
† †
Flashing Flashing
Off Off
†
The flashing behavior is an on/off cycle once every 1.6 seconds, approximately.
Under this error condition, the following events also occur:
• All the LEDs on the module stay on until the error is resolved.
• The switch software, including console and web browser access will not be
operational for approximately one minute from the time the module gets into this
condition.
Make sure to screw in the retaining screws to firmly position the module and so that
the module cannot be inadvertently pulled out by pulling on the network cables.
If this does not resolve the condition, try reinstalling the module. You can do this without
having to power down the switch.
Module Port
Link and Mode
†
Flashing All Link and Mode LEDs On
†
Flashing All Link and Mode LEDs On
On Link and Mode LEDs On for
one or both of the ports after
a module hot swap
On Link and Mode LEDs On for
one or both of the ports after
switch power on or reset
On Off with cable connected
Solution
Troubleshooting
Diagnostic Tips
13