Enterasys Networks IRM2 manual Collisions

Alarm Limits

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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:

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.

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

5-4 Accessing the Alarm Limits Windows