User manual

C HAPTER 4 | Configuring the Switch
Configuring Security
– 81 –
■
Rising or Falling – Trigger alarm when the first value is larger than
the rising threshold or less than the falling threshold (default).
◆ Rising Threshold – If the current value is greater than the rising
threshold, and the last sample value was less than this threshold, then
an alarm will be generated. After a rising event has been generated,
another such event will not be generated until the sampled value has
fallen below the rising threshold, reaches the falling threshold, and
again moves back up to the rising threshold. (Range: -2147483647 to
2147483647)
◆ Rising Index – The index of the event to use if an alarm is triggered
by monitored variables crossing above the rising threshold. If there is
no corresponding entry in the event control table, then no event will be
generated. (Range: 1-65535)
◆ Falling Threshold – If the current value is less than the falling
threshold, and the last sample value was greater than this threshold,
then an alarm will be generated. After a falling event has been
generated, another such event will not be generated until the sampled
value has risen above the falling threshold, reaches the rising
threshold, and again moves back down to the failing threshold.
(Range: -2147483647 to 2147483647)
◆ Falling Index – The index of the event to use if an alarm is triggered
by monitored variables crossing below the falling threshold. If there is
no corresponding entry in the event control table, then no event will be
generated. (Range: 1-65535)
WEB INTERFACE
To configure an RMON alarm:
1. Click Advanced Configuration, Security, Switch, RMON, Alarm.
2. Click Add New Entry.
3. Enter an index number, the polling interval, the MIB object to be polled
(etherStatsEntry.n.n), the sample type, the alarm startup type, the
thresholds, and the event to trigger.
4. Click Save.
Figure 27: RMON Alarm Configuration