User guide

Viewing Statistics 401
Defining RMON Device Alarms
The RMON Alarms page contains fields for setting network alarms. Network alarms occur when a
network problem, or event, is detected. Rising and falling thresholds generate events. To open the
RMON Alarms page, click Statistics/RMON→ RMON→ Alarms in the tree view.
Figure 8-12. RMON Alarms
• Alarm Entry — Indicates a specific alarm.
•
Interface — The interface for which RMON statistics are displayed.
•
Counter Name — The selected MIB variable.
•
Counter Value — The value of the selected MIB variable.
•
Sample Type — Specifies the sampling method for the selected variable and comparing the value
against the thresholds. The possible field values are:
–
Delta — Subtracts the last sampled value from the current value. The difference in the values is
compared to the threshold.
–
Absolute — Compares the values directly with the thresholds at the end of the sampling interval.