Administrator Guide

Fabric Watch Administrator’s Guide 51
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Port class guidelines and default settings
7
Physical port setting guidelines
It is recommended that you use the default settings listed in Table 16 for most Port class areas.
Consider the Port class to be a superset containing the E_Port, FOP_Port, and FCU_Port
subclasses. If you make a change to a default setting for an area in the Port class, it applies to all of
the subclasses. This is convenient if you have determined that changes you plan to make to the
default settings for the subclasses are the same for certain areas. In this case, you only need to
make the changes to the Port class. Note, however, that if you make a change to one of the
subclasses, that change overrides the Port class setting.
Port class default settings
Table 16 provides default settings for areas in the Port class.
TABLE 16 Port class default settings
Area Description Default threshold
settings
Default alarm settings Threshold state
Cyclic redundancy
check (CRC)
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.
Unit: Errors
Time Base: minute
Low: 0
High: 1000
Buffer: 100
Below: 0
Above: 0
Informative
Out_of_range
Class 3 discards
(C3TX_T0)
Class 3 discards
frames due to
time-out or
destination
unreachable.
Unit: Errors
Time Base: minute
Low: 0
High: 2
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
State changes (ST) Monitors state
changes.
Unit: Changes
Time Base: minute
Low: 0
High: 50
Buffer: 0
Below: 0
Above: 0
Informative
Out_of_range
Sync loss Monitors the
number of loss of
synchronization
errors.
Unit: Errors
Time Base: minute
Low: 0
High: 500
Buffer: 50
Below: 0
Above: 0
Informative
Out_of_range