Enterasys Networks 700 - Manual (Page 123)

Basic Alarm Configuration 4-7
Alarm Configuration
3. In the Interval field, enter the amount of time, in seconds, over which the
selected variable will be sampled. At the end of the interval, the sample value
will be compared to both the rising and falling thresholds. You can assign any
interval from 1 to 65,535.
4. In the Alarm field, click to select one or both of the following options:
a. Select Log if you wish to create a silent log of alarm occurrences.
b. Select Send Trap if you want your device to issue a trap in response to
each alarm occurrence.
5. Any value you enter in the Community field will be included in any trap
messages issued by your MultiSwitch 700 module in response to the alarm(s)
you are configuring. This value is also used to direct traps related to this alarm
to the appropriate management workstation(s):
a. If you enter a value in this field, traps related to the associated alarms
will only be sent to the network management stations in the device’s trap
table
which have been assigned the same community name (and for
which traps have been enabled). Any IP addresses in the device’s trap
table which have
not been assigned the same community string, or which
have been assigned no community string, will not receive traps related to
the alarm(s) you are configuring.
b. If you leave this field blank, traps related to the associated alarms will
be sent to any network management stations which have been added to
the device’s trap table, and for which traps have been enabled —
regardless of whether or not those IP addresses have been assigned a
community name in the trap table.
6. Click in the Rising Threshold field, and enter the high threshold value for this
alarm. Remember, compared values are always relative, or delta values (the
difference between the value counted at the end of the current interval and
the value counted at the end of the previous interval); be sure to set your
thresholds accordingly.
When configuring a Kilobits alarm, NetSight Element Manager converts
octets into kilobits (units of 125 bytes, or octets) for you;
for example, to set a rising threshold of 1250 octets, enter a threshold value
of 10.
NOTES
In order for the trap selection to work properly, your MultiSwitch 700 module must be
configured to send traps to your network management station. This is accomplished via
Local Management or the Remote Administration Tools application. Consult your device
hardware manual or the Remote Administration Tools User’s Guide for details.
If you are monitoring a variable you consider to be critical, we do not recommend that you
select Trap as the only event response; if a trap is lost due to a collision or other
transmission problem, it will not be re-sent.