Filter
Top Products
interfaces, but may be empty as well (this is the default ). If this table is empty, it is due to
one of the following reasons:
• RMON Group 3 is not supported on this device.
• RMON Group 3 is supported but there are no control threshold entries. You can create a
threshold entry for any interface by clicking on the Create button. The Add RMON Group 3
window opens.
Figure 33. Add RMON Group 3 Window
You are required to enter some information describing the threshold information:
• Interface Index (or index of the selected MIB variable).
• Reporting Interval: In seconds, e.g.: 10 sec or 1 sec.
• What to monitor: You can select one of the predefined IfTable (MIB-II) counters, e.g.:
InErrors (Input Errors) or any MIB variable. You may also refer to “Interfaces Statistics
(per interface)” section earlier for more information on MIB-2 counters.
• Sample Type: Select the method of sampling: Absolute means that the threshold will be
applied to the counter’s absolute value. Delta means that the threshold will be applied to the
counter changes during the sampling interval.
• Rising Threshold: A single event will be generated after the sampled value exceeds this
threshold. The next Rising event alarm will be generated only after the threshold for a
Falling Event (see below) has been reached.
• Falling Threshold: A single event will be generated after the sampled value falls below
this threshold. The next Falling event will be generated only after the threshold for a Rising
Event (see above) has been reached.