Brocade Fabric Watch Administrators Guide (Supporting Fabric OS v7.3.0) - Manual (Page 76)

• Link Failure Count
• Loss of Synchronization Count
• Primitive Sequence Protocol Error
• Invalid Transmission Word
• Invalid CRC Count
• Class 3 Discards
The only ports which fall into the FCU_Port subclass are internal copper-based ports on embedded
switches. Copper-based ICL ports are not part of the FCU_Port subclass, and optical ICL ports are not
part of the FOP_Port subclass.
FOP_Port and FCU_Port subclass default settings TABLE 18
Area Description Default threshold
settings Default alarm
settings Threshold state
Cyclic
redundancy check
(CRC with good
EOF (crc g_eof)
markers) Monitors the number of
CRC errors. Unit: Errors
Time Base: minute
Low: 0
High: 1000
Buffer: 100
Below: 0
Above: 0
Informative
Out_of_range
Invalid
transmission
words (ITW) Monitors the number of
invalid words transmitted.
For Fabric OS 7.1.0 and
later, the ITW counter
includes a physical coding
sublayer (PCS) violation.
ITW violations can occur
due to an ITW violation, a
PCS violation, or both.
Unit: Errors
Time Base: minute
Low: 0
High: 1000
Buffer: 100
Below: 0
Above: 0
Informative
Out_of_range
Class 3 discards
(C3TX_TO) Class 3 discards frames due
to time-out or destination
unreachable. Unit: Errors
Time Base: minute
Low: 0
High: 5
Buffer: 0
Below: 0
Above: 0
Informative
Out_of_range
Link loss Monitors the number of link
failures. Unit: Errors
Time Base: minute
Low: 0
High: 500
Buffer: 50
Below: 0
Above: 0
Informative
Out_of_range
Signal loss Monitors the number of
signal loss errors. Unit: Errors
Time Base: minute
Low: 0
High: 5
Buffer: 0
Below: 0
Above: 0
Informative
Out_of_range
Port Monitoring
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