|Bulk Threshold Control|
The Bulk Threshold Control allows you to set thresholds on sensitive indicators (SNMP Object Identifier – OID) for hundreds of hosts in few mouse clicks. You could see on one screen, hundreds of Hosts, associate them one indicator, set the threshold on which you want to be warned.
The threshold could be set on a string or a Interger Value. Comparaison
operators allows you to define the condition.
Templates of standard threshold configuration could be defined and applied to a host or a group of host. This option allow you to define a lot of Alarm thresholds in an few clicks.
With such tool, you could focus on the important events occurring in your Information system.
Hereunder, the main windows of the Bulk Threshold Control.
The installation of the Bulk Threshold Plugin
is performed in the directory workspace.
You should see the following result in
We will present the configuration through an example.
Suppose we have three hosts with two network interfaces each. We want to be notified if their operational statuses change to “down”.
First, we need to know at least the following information:
The first question “What OID should we supervise and what the value
could be” is not so easy to understand for people not used to works
with OID. OID are objects defined in the MIB files and thus could be find
using the MIB tree tab of the LoriotPro Workspace. At least, you should
know aproximately in which branch of the MIB tree you could find the indicator
(OID) you want to poll.
The first and fastest way for selecting the OID is to use the WIZARD
The second way is to select the OID in the MIB tree.
Lets search the MIB tree and find our interface status indicator.
We find our indicator in the interface branch under interface table.
The interface table contains for each interface a list of indicator
(SNMP objects). One of this is the ifoperstatus.
We could check with its description that the indicator is the right one and notice that the status could have three states (up, down, testing).
Before leaving the MIB tree Workspace we have to copy either the
object Name or its OID to the clipboard from the contextual menu
as displayed below.
Then we come back to the Bulk Threshold Control window and paste the name or OID in the OID field. Then, we had if necessary the dot and the index value (here index 1).
In our example, the host has multiple interfaces, each one having an index. To gather the interface index values just start the common query tool and click on one interface. You will see the list of interfaces for that host and their respective index values.
The differential mode specifies that the value used for the threshold
evaluation will be the difference between the current OID value
and the old value (the previous value). This option is very useful
when you read SNMP OID value of gauge type. These types of value
are cumulative (like your car gas gauge). To know if it has change
since the last time, you have checked it, you should compare the
current value to the old value.
We should now set the other parameter.
The Alarm number is set to something higher than 10000 and not already assigned. This number will appears in the event manager and allows you to do filtering.
The event WIZARD allows you to find an existing Event or create a new one. The Description text could be define also by this way in the comment field.
The level helps you to define the importance of the event. Low level of gravity is 10, high level is 0 (red in the event manager).
The “If value Is” field allow you to select the condition
operator. The operator could be :
The next field contains the threshold value. This field could be the numerical value or the string value (like here in our example).
Next step is to set the polling interval to which hosts will be polled. In Global parameter, Polling Interval, select a value.
We could now select the hosts to which we want to apply the previous defined parameters
You could add hosts to the list either manually by setting one by one the host IP address or you could pick them up in the Directory.
The second way is far most faster an support the shift and Ctrl selection in the list.
The last way is to use the Wizard by cliking on the + button, consult the chapter WIZARD
When this is done, we could see the hosts in the list.
A template allows you to applied an already define setting, some lines in the threshold list, to a host.
If you have define a setting that send an alarm like in the preceeding
example we could create a template from it.
To use the template, select a host and then click on the Import Template button. Choose the template file and select OK. A new line or set of line are added to the list.WARNING: In our example we choose an inedexed objet. If the Object is indexed you have to be sure that the same index exist in the new host to which you apply your template.
The Bulk Control Threshold updates the Value field after each
polling. If the value field becomes red it means that the threshold or
status condition is satisfied. Then, the alarm is sent to the event manager.
The information above could also be check remotely if you have started the LoriotPro WEB server (refer to LoriotPro documentation for setting this service).
You could access from a navigator your current table. A double click on the Bulk threshold (hammer) in the tree opens the table with the current state and values.
On the right side of the table you could had the Loriotpro Vu-meter. To have the Vu-meter check the box Add VuMeter to HTTP report in the Control. The Min and Max value displayed on the Vumeter could be specified.