Brocade Communications Systems AA979A - StorageWorks SAN Switch 2/8V Reference Manual page 242

25
FW-1217
Probable
Indicates that the number of AL_PA CRC errors has changed. This indicates that errors have been
Cause
detected in the FC frame. Invalid CRC messages occur when the number of CRC errors in Fibre
Channel frames for specific source ID (S_ID) and destination ID (D_ID) pairs change. These messages
might also be caused by dirty equipment, temperature fluctuations, and aging equipment.
Recommended Verify that your optical components are clean and function properly. Replace deteriorating cables or
Action
SFPs. Check for damage from heat or age. You should set your high boundaries to five- or six-digit
figures, as only large numbers of messages indicate a problem in this area.
Severity
INFO
FW-1217
Message
<timestamp>, [FW-1217], <sequence-number>,, INFO, <system-name>,
<Label>, is below low boundary(High=<High value>, Low=<Low value>).
Current value is <Value> <Unit>.
Probable Indicates that the number of AL_PA CRC errors has fallen below the low boundary. This indicates that
Cause
errors have been detected in the FC frame. Invalid CRC messages occur when the number of CRC
errors in Fibre Channel frames for specific source ID (S_ID) and destination ID (D_ID) pairs change.
These messages might also be caused by dirty equipment, temperature fluctuations, and aging
equipment. You should set your high boundaries to five- or six-digit figures, as only large numbers of
messages indicate a problem in this area.
A low level of invalid CRC errors means that the switch is functioning normally.
Recommended No action is required. Respond to this message as is appropriate to the particular policy of the end-user
Action installation.
Severity INFO
FW-1218
Message
<timestamp>, [FW-1218], <sequence-number>,, WARNING, <system-name>,
<Label>, is above high boundary(High=<High value>, Low=<Low
value>). Current value is <Value> <Unit>.
Probable
Indicates that the number of CRC errors has risen above the high boundary. This indicates that errors
Cause
have been detected in the FC frame. Invalid CRC messages occur when the number of CRC errors in
Fibre Channel frames for specific source ID (S_ID) and destination ID (D_ID) pairs change. These
messages might also be caused by dirty equipment, temperature fluctuations, and aging equipment.
Recommended You should configure a five- or six-figure high boundary for this area. Only five-figure (or higher)
Action
values for CRC errors indicate problems. When an "above" message is received, check for a faulty cable
or deteriorated SFP. Replace the cable or SFP if necessary. Try cleaning the connectors. Check for
damage from heat or deterioration from age.
25-36 Fabric OS Message Reference
Publication Number: 53-1000242-01