Troubleshooting
The primary tools for troubleshooting the switch modules are the LEDs on the
front of the switch and on the modules. Refer to "LED Behavior" on page 6.
Also, refer to the Installation and Getting Started Guide for more detailed
troubleshooting information.
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:
Fault
Self Test
†
Blinking
Blinking
†
Blinking
Off
Off
Off
Off
Off
†
The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
Diagnostic Tips:
See the tables on the next two pages to diagnose the LED error indicators in
the previous table.
Module Status
†
†
Blinking
All Link and
Mode LEDs On
†
Blinking
On briefly, then
†
Blinking
On
Off with cable
connected
Troubleshooting
Port Link
Diagnostic Tips
Off
Off
13