
Q
5 – Diagnostics/Troubleshooting POST Diagnostics
5.1.2.2
Excessive Port Errors
The switch monitors a set of port errors and generates alarms based on
CRC errors
Decode errors
ISL connection count
Login errors
Logout errors
If the count for any of these errors exceeds the rising threshold for three consecutive sample intervals, the switch generates an alarm and disables the affected port, changing its operational state to “down”. Port errors can be caused by the following:
Thresholds are too low or the sample interval is too small
Faulty Fibre Channel port cable
Faulty SFP
Faulty port
Fault device or HBA
Review the alarm log to determine if excessive port errors are responsible for disabling the port. Look for a message that mentions one of the monitored error types indicating that the port has been disabled, then do the following:
1.Examine the alarm configuration for the associated error using the Show Config Threshold command or the SANbox Manager application. Refer to the ”Show Config Command” on page
Yes - Continue
No - Correct the alarm configuration. If the condition remains, continue.