Understanding The Leds; Link/Collision/Error Led; Utilization Led - Fluke Network Tester User Manual

NetTool
Users Manual

Understanding the LEDs

On each side of the LCD, NetTool has a pair of LED
indicators (Figure 1-3). These LEDs combine to give you
immediate insight and at-a-glance information about your
network environment. The top pair of LEDs provides link,
collision, and error information while the bottom pair
indicates utilization levels.
Link, Collision
and Error LED
Utilization
LED
Figure 1-3. NetTool LEDs
1-6

Link/Collision/Error LED

A tri-colored LED with these states:
•
•
•

Utilization LED

Link, Collision
and Error LED
A tri-colored LED, with each color representing the
following ranges of utilization:
•
•
Utilization
LED
•
ahn314f.eps
Green: a link pulse is present.
Yellow: collisions are occurring.
Red: errors (for example, FCS and jabbers) are
being detected.
Green: network utilization levels are below 40 %.
Yellow: network utilization levels are between 40 %
and 70 %.
Red: network utilization levels are greater than 70 %.