Brocade Communications Systems StoreFabric SN6500B Reference page 552

5
FW-1520
FW-1520
Message
<Port Name> <Label>, has dropped below upper threshold boundary to in
between(High=<High value>, Low=<Low value>). Current value is <Value> <Unit>.
Message Type
LOG
Severity
INFO
Probable Cause
Indicates that the number of invalid words that the port experiences has changed and dropped the below
upper threshold boundary to a value within the acceptable range. Invalid words usually indicate a
hardware problem with a small form-factor pluggable (SFP) or cable.
Recommended
No action is required. Respond to this message as is appropriate to the particular policy of the end-user
Action installation.
FW-1521
Message
<Port Name> <Label>, has crossed lower threshold boundary to in between(High=<High
value>, Low=<Low value>). Current value is <Value> <Unit>.
Message Type
LOG
Severity
INFO
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences crossed
the lower threshold boundary to a value within the acceptable range.
Recommended
Frequent fluctuations in CRC errors generally indicate an aging fabric. Check your small form-factor
Action pluggables (SFPs), cables, and connections for faulty hardware. Verify that all optical hardware is clean.
FW-1522
Message
<Port Name> <Label>, has dropped below upper threshold boundary to in
between(High=<High value>, Low=<Low value>). Current value is <Value> <Unit>.
Message Type
LOG
Severity
INFO
Probable Cause
Indicates that the number of invalid cyclic redundancy checks (CRCs) that the port experiences has
dropped below the upper threshold boundary to a value within the acceptable range.
Recommended
Frequent fluctuations in CRC errors generally indicate an aging fabric. Check your small form-factor
Action pluggables (SFPs), cables, and connections for faulty hardware. Verify that all optical hardware is clean.
530
Fabric OS Message Reference
53-1002749-01