Fluke Network Tester user manual Understanding the LEDs, Link/Collision/Error LED, Utilization LED

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	Link, Collision
and Error LED	and Error LED

Utilization	Utilization
LED	LED

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Figure 1-3. NetTool LEDs

Link/Collision/Error LED

A tri-colored LED with these states:

•Green: a link pulse is present.

•Yellow: collisions are occurring.

•Red: errors (for example, FCS and jabbers) are being detected.

Utilization LED

A tri-colored LED, with each color representing the following ranges of utilization:

•Green: network utilization levels are below 40 %.

•Yellow: network utilization levels are between 40 % and 70 %.

•Red: network utilization levels are greater than 70 %.

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