5 – Diagnostics/Troubleshooting
Power-On Self Test Diagnostics
5-8 59225-00 B
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5.2.2
Logged-In LED Indications
Port diagnostics are indicated by the Logged-In LED for each port as shown in
Figure 5-2.
Figure 5-2. Logged-In LED
The Logged-In 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 Logged-In LED is flashing twice per second, review the event browser for
alarm messages regarding the affected port. You can also inspect the alarm log
using the Show Alarm command. If there is an error, alarm messages may point to
one or more of the following conditions:
E_Port Isolation
Excessive Port Errors
5.2.2.1
E_Port Isolation
A Logged-In LED error indication is often the result of E_Port isolation. An isolated
E_Port is indicated by a red link in the SANsurfer Switch Manager topology
display. E_Port isolation can be caused by the following:
FL_Port is connected to another switch
Conflicting domain IDs
Conflicting timeout values
Conflicting zone membership between active zone sets
Refer to the SANbox 1400 Series Switch Management User’s Guide for
information about how to change domain IDs, timeout values, and edit zoning.
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Logged-In LED
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