User guide

5-28 ExtremeWare EPICenter Software Installation and User Guide
The EPICenter Alarm System
You can also type the beginning of a variable name into the MIB Variable field, then
type a space, and the Alarm System will attempt to match your typing to the variable
list and auto-complete your entry.
MIBvariablesthatapplytotheentiredevicewill have thesuffix“.0”appended to them
tocreatethecompleteOID.MIBvariablesthatapplyperportwillbecombinedwiththe
port ifIndex to generate the OID.
The MIB variable list displays only the MIBs that were shipped with the
EPICenter software. It does not display table variables if the table is indexed by
an index other than (or in addition to) ifIndex.
If the MIB variable you want to monitor does not appear in the MIB Variable lookup
list,you canstill use the variablebytypingitscompleteOIDinto the MIB Variablefield.
Enter the OID in its numeric form, ending in .0 if it is a per device variable, or in the
specific index if it is a per-port variable. If it is a table variable, you may need to enter
each index and apply it to each target device one by one.
• Description: The description of the MIB variable.This description should specify the
units of measure for the variable, needed in order to correctly specify the Rising
Threshold and Falling Threshold values.
• Rising Threshold: A threshold value that will trigger an event when the value of the
variableincrements pastthis value. An event will be generated when the sample value
meets the following conditions:
— When the sample value becomes greater than or equal to the Rising Threshold for
the first time after the alarm is enabled, if the Startup Alarm condition is set to
Rising or RisingOrFalling
— The first time the sample value becomes greater than or equal to the Rising
Threshold, after having become less than orequal to the Falling Threshold
•FallingThreshold:A threshold value that will trigger an event when the value of the
variable decreases past this value. An event will be generated when the sample value
meets the following conditions:
— When the sample value becomes less than or equal to the Falling Threshold for the
first time after the alarm is enabled, if the Startup Alarm condition is set to Falling
or RisingOrFalling
— The first time the sample value becomes less than or equal to the FallingThreshold,
afterhavingbecomegreaterthanorequaltotheRisingThreshold
• Sample Type: The method used to compare the variable to the threshold. Specify the
type as follows:
— Absolute to use the actualsample value of the variable