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5 – Diagnostics/Troubleshooting
POST Diagnostics
59021-07 A 5-7
D
5.1.2.2
Excessive Port Errors
The switch monitors a set of port errors and generates alarms based on
user-defined sample intervals and thresholds. Refer to the SANbox2-8c/16 Switch
Management User’s Guide for information about managing alarms. These port
errors include the following:
CRC errors
Decode errors
ISL connection count
Login errors
Logout errors
Loss-of-signal 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
Note: This can be caused by merging two fabrics whose active
zone sets have two zones with the same name, but
different membership.