Dell Brocade 6520 Message Reference Supporting Fabric OS v7.1.0 - Page 498

5 FW-1217 FW-1217 Message , is below low boundary(High=, Low=). Current value is . Message Type LOG Severity INFO Probable Cause Indicates that the number of Arbitrated Loop Physical Address (ALPA) cyclic redundancy check (CRC) errors has fallen below the low boundary. This indicates that 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 fiveor six-digit figures, because only large numbers of messages indicate a problem in this area. Recommended Action No action is required. Respond to this message as is appropriate to the particular policy of the end-user installation. A low level of invalid CRC errors means that the switch is functioning normally. FW-1218 Message , is above high boundary(High=, Low=). Current value is . Message Type LOG Severity WARNING Probable Cause Indicates that the number of cyclic redundancy check (CRC) errors has risen above the high boundary. This indicates that 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, because only large numbers of messages indicate a problem in this area. Recommended Action You should configure a five- or six-figure high boundary for this area. Only five-figure (or higher) values for CRC errors indicate problems. Check for a faulty cable or deteriorated small form-factor pluggable (SFP). Replace the cable or the SFP if necessary. Clean the connectors. Check for damage from heat or deterioration from age. 476 Fabric OS Message Reference 53-1002749-01