Fw-1181, Fw-1182, Fw-1183 – Dell POWEREDGE M1000E User Manual
Page 387

Fabric OS Message Reference
311
53-1001767-01
FW-1181
42
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences has
changed.
Recommended
Action
No action is required. Respond to this message as is appropriate to the particular policy of the
end-user installation. Frequent fluctuations in CRC errors generally indicate an aging fabric. Check
your small form-factor pluggables (SFPs), cables, and connections for faulty hardware. Verify that
all optical hardware is clean.
Severity
INFO
FW-1181
Message
is
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences has
fallen below the low boundary.
Recommended
Action
No action is required. Respond to this message as is appropriate to the particular policy of the
end-user installation. A low number of invalid CRCs means that the switch is functioning normally.
Severity
INFO
FW-1182
Message
is
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences has
risen above the high boundary.
Recommended
Action
This error generally indicates an deteriorating fabric hardware. Check your small form-factor
pluggables (SFPs), cables, and connections for faulty hardware. Verify that all optical hardware is
clean.
Severity
WARNING
FW-1183
Message
Current value is
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences has
changed from a value outside of the acceptable range to a value within the acceptable range.