Enterasys IRM2, Руководство пользователя

Страница: 64 / 88

Alarm Limits
5-4 Accessing the Alarm Limits Windows
.
Figure 5-3. Port Alarm Limits Window
When using the Alarm Limits screens to set your alarm thresholds, keep in mind
that repeater-level thresholds will apply to all traffic received by the entire
IRM2-managed repeater segment; board-level thresholds will apply only to traffic
on the selected board; and port-level thresholds will apply to traffic on the specific
port.
The Alarm Limits window displays the following fields:
Collisions
Use the text box in this field to enter the number of collisions per good packet you
wish to allow on the selected repeater, board, or port before an alarm is generated;
allowable values are 1-15. For example, if you enter a value of 1, the alarm will be
generated if the repeater, board, or port experiences an average of one collision
per good packet received during the configured time base (see the explanation for
“within,” below). In terms of percentages, an alarm threshold value of 1 would
generate an alarm if 50% of your packets were collisions (one collision for every
good packet); a threshold value of 15 would generate an alarm if 93.75% of your
NOTE
Some IRM2s running older revisions of firmware (version 1.0) will not support all of the
alarm fields described below; any fields which appear grayed out are not supported by the
modeled device.