Technical Description &
Configuration Guide
Performance
and Alarm Management
LigoWave
Page 66
Performance Values
Threshold Seconds (TS)
The TS is defined as one second period during which the detected value is outside of predefined
thresholds. The current value of the counter associated with a TS shall be readable by the managing
system on request. In case a threshold associated to a TS counter is changed, the current value of the
counter shall be reset to zero.
Tide Mark (TM)
The TM is a mechanism that records the maximum and the minimum value reached during
measurement period. The tide mark values are automatically reset to the current value assumed at the
beginning of each measurement period. The TM is therefore composed of two values: the minimum
and the maximum value. Comparison between the current value and the minimum and maximum
values is performed on a second basis.
Performance Management in Web GUI
The main performance management tool in the LigoPTP 24 FODU is the Web interface, allowing user
to review performance measurements in a very convenient and visualized way.
Going to „Performance
Performance log‟ in navigation panel on the left side of the Web GUI window
will lead you to the log parameters‟ selection screen, where you will be able to choose between 6
different parameters to display in summarizing performance log or pick „ALL‟ to display all 6
parameters in conjoint log which is shown in figure below:
Figure 44
– Selecting performance log parameters
