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Alarm Configuration
3-4 Basic Alarm Configuration
When the window is Þrst launched, no interfaces will be selected, and the Apply,
Disable, and View Log buttons will be grayed out: the Apply and Disable
buttons will activate when an interface is selected; the View Log button will
activate when an interface which has experienced an alarm event is selected. The
presence of an event log is indicated by the double greater-than sign (>>)
displayed to the left of the threshold value that was crossed.
Viewing Alarm Status
The Basic Alarm ConÞguration window contains all the Þelds you need to
conÞgure one or more of the three basic alarms available for each interface
installed in your RMON device:
Kilobits — Total Errors — Broadcasts/Multicasts
Use these Þelds at the top of the window to change the alarm type whose status is
displayed in the list box. For example, if the Kilobits option is selected, the
information in the list box pertains to the status of the Kilobits alarm type for each
installed interface. Before you conÞgure an alarm or alarms, be sure the
appropriate option is selected here.
The available alarm variables are:
¥ Kilobits (ifInOctets) Ñ tracks the number of octets of data received by the
selected interface. Note that this value has been converted for you from octets
(or bytes) to kilobits (or units of 125 bytes); be sure to enter your thresholds
accordingly. For example, to set a rising threshold of 1250 octets, enter a
threshold value of 10; to set a falling threshold of 625 octets, enter a threshold
value of 5.
¥ Total Errors (ifInErrors) Ñ tracks the number of error packets received by the
selected interface.
¥ Broadcast/Multicast (ifInNUcast) Ñ tracks the number of non-unicast Ñ that
is, broadcast or multicast Ñ packets received by the selected interface.
Port Number
Provides a sequential indexing of the interfaces installed in your RMON device.
TIP
You can also access the Alarms function Ñ and the rest of the RMON functionality Ñ by
selecting the RMON option from the Chassis View Utilities menu.
TIP
Note that the three pre-selected alarm variables are all MIB II variables; this allows you to
conÞgure alarms for any installed interface Ñ even those for which no speciÞc RMON
statistics yet exist.