Allied Telesis AT-S94 - Manual (Page 228)

Viewing Statistics
Managing RMON Statistics
Page 228
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Defining RMON Alarms
The RMON Alarm 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 set RMON alarms:
1. Click Statistics > RMON Alarm. The RMON Alarm Page opens:
Figure 160:RMON Alarm Page
The RMON Alarm Page contains the following fields:
• Alarm Entry — Indicates a specific alarm.
• Counter Name — Displays the selected MIB variable.
• Interface — Displays interface for which RMON statistics are displayed. The possible field values are:
– Port — Displays the RMON statistics for the selected port.
– Trunk — Displays the RMON statistics for the selected trunk.
• Counter Value — Displays the selected MIB variable value.
• Sample Type — Defines 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.
• Rising Threshold — Displays the rising counter value that triggers the rising threshold alarm.
• Rising Event — Displays the event that triggers the specific alarm. The possible field values are user-
defined RMON events.
• Falling Threshold — Displays the falling counter value that triggers the falling threshold alarm.