Alarm Configuration
3-4 Basic Alarm Configuration
Viewing Alarm Status
The Basic Alarm Configuration window contains all the fields you need to
configure one or more of the three basic alarms available for each interface
installed in your RMON device:
Kilobits — Total Errors — Broadcasts/Multicasts
Use these fields 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 configure an alarm or alarms, be sure the
appropriate option is selected here.
The available alarm variables are:
•Kilobits (ifInOctets) — 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) — tracks the number of error packets received by the
selected interface.
•Broadcast/Multicast (ifInNUcast) — tracks the number of non-unicast — that
is, broadcast or multicast — packets received by the selected interface.
Port Number
Provides a sequential indexing of the interfaces installed in your RMON device.
IF Number
Displays the interface number assigned to each available interface.
IF Type
Displays each interface’s type: FDDI, Ethernet, Token Ring, or ATM. Note that
there is no type distinction between standard Ethernet and Fast Ethernet.
Status
Displays the current status of the selected alarm type for each interface: Enabled
or Disabled. Remember, this status refers only to the alarm type which is selected
at the top of the window; each of the other two alarm types can have different
states.
TIP
The three pre-selected alarm variables are all MIB II variables; this allows you to configure
alarms for any installed interface — even those for which no specific RMON statistics
exist.