HP 10Base-T Hub 24M Manual page 42

Critical Severity Region. The higher region of the gauge, always shown
in red, indicating a problem with the level of attribute activity and that
action needs to be taken.
After the Browser Interface displays the Overview Window, the Attribute
Reading fields for all four attributes display the string Measuring..., indicating
the application is collecting current data from the hub to represent in the
gauges. After a few seconds, the Attribute Reading fields display values,
frequently 0, but sometimes high values. The Gauge needle moves to point to
a Gauge Marker that reflects the Attribute Reading displayed. Note the three
colored regions in the gauge. Note that the three colors appear in three distinct
Gauge Severity Regions. They also map to specific Status Indicator shapes
that are displayed in two places:
the Status column in the Alert Log
the Status Bar above left of the Gauges Area
See Table 4-4 for details on Status Indicator shapes.
The range of each Gauge Severity Region differs for each attribute. For
example, the upper limit of the range for the Normal Activity Region for
Utilization is about 40 (percent). The upper limit of the range for the Normal
Activity Region for Collisions is just a bit more than 25 (percent). The thresh-
olds for warning and critical levels are fixed as follows:
Table 4-2. Attribute Range Values
Attribute Warning Threshold
Utilization%
Collisions
Broadcasts
Errors
Multicasts
Running the Browser Interface
Critical Threshold
40 75
30 50
600 2000
2 3
1500 4000
4-11