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5 – Diagnostics/Troubleshooting
POST Diagnostics
5-6 59043-06 A
0
5.1.2
Port Status LED Indications
Port diagnostics for each port are indicated by the Port Status LED as shown in
Figure 5-1.
Figure 5-1. Port Status LED
The Port Status LED has three indications:
Continuous illumination: A device is logged in to the port.
Flashing once per second: A device is logging in to the port.
Flashing twice per second: The port is down, offline, or an error has
occurred.
If a Port Status LED shows an error indication, review the event browser for alarm
messages regarding the affected port. You can also inspect the event log using
the Show Alarm command. Pertinent alarm messages will point to one or more of
the following conditions:
E_Port isolation
Excessive port errors
Port Status
LED