SNMP OID

Here you can set up SNMP templates that are then assigned to particular devices.

 

 

Title

The name of a given template

SNMP The SNMP version used (SNMP v1 or SNMP v2c)
If data are being gathered correctly during the router connection test, yet the graph is not being plotted, choose SNMP v1. Default for testing: SNMP v1
Graph size

The size of a graph in pixels Default: 520 x 140 px

Minimum value of the graph

Maximum value of the graph

If you set both these values to 0, the y-axis of a given graph will automatically be adjusted to reflect the measured values. Thus, for example, if CPU load hovers around 50 %, the minimum value of a given graph will be 40 % and the maximum value 60 %. If you set the minimum value to 0 % and the maximum value to 100 %, the resultant graph will be clearer.

OID

The SNMP OID of what is being measured Here you can set in detail each measured characteristic. You can add up to 32 measured values (for example: 1.3.6.1.2.1.2.2.1.10.1 - the total number of octets received on the interface, including framing characters). You can retrieve these values from MIB (Management Information Base) tables of a given device. You have to enter an SNMP OID in numerical unshortened form.

Description

The description of the data measured (for example, CPU load and Temperature) This description will be displayed on a graph.

Graph

If this box is checked, a graph of the data measured will be plotted. If not, a graph will not be plotted, but the system will still gather data from a given device and it will be possible to have a look at them later.

Group

Individual values can be grouped. Here a group means a set of values that are displayed on a single graph. For example, if you assign three values to group 1 and further two to group 2, two graphs will be plotted for a given device. There will be three values on the first graph and two on the second one.

Operator

Here it is possible to convert values to the appropriate unit. For example, the system returns 1245 (instead of 12,45) as the battery voltage value. This value must be converted to the appropriate form by dividing it by 100.
You can choose “*”, “/”, “+” or “-” from the pop-up menu.

Ratio value

The value that is used (along with a particular operator) to convert the value returned by the system to the desired form

Unit

The unit displayed on a graph next to values (kbps, A, V, % ...)

Number of decimal places

The number of decimal places displayed on a graph (0-3)

Absolute value

When the system gathers data, for example, about temperature or voltage, absolute values (e.g. 12,45 V, 12,58 V) are used. That means that the used values are not incremental. In this case, it is necessary to check the box. However, if you want to plot graphs of transferred data (devices return incremental values - counters), it is necessary to always calculate the difference between the current measured value and the previous measured value and plot the result on a given graph. In this case, it is necessary to leave the box unchecked.

Color

You can choose the colour that will be used for all the data point in the data series.

Type

Here you can choose which type of graph you want: the LINE type (thickness 1-3) or the AREA type. The LINE type: a simple line (of a particular thickness). The AREA type: the shaded area of a graph.

OID key It is an identifier and it has to remain unchanged for this specific purpose.

 

Any changes made to an SNMP OID template will immediately be seen in the graph being plotted. That means that if you, for example, change a ratio value, the graph will be updated to reflect the change. Even values gathered earlier will be adjusted accordingly.

Debugging

 

SNMP walker - If you want to debug and work further with the SNMP protocol, you can make use of the snmpwalk utility, which is accessible directly from the OS Linux console:

snmpwalk -c public -v2c 192.168.1.1

With this command, you can log into the device with the IP address given. Password: public. Protocol version: v.2 = 2c, v.1 = 1. When you execute this command, a list of OIDs and their values will appear.


Connection test - By running this test, you can check whether communication with a given router works, whether communication through SNMP protocol works and whether the data gathered through a defined OID are correct.

 

Tips on how to use this documentation

 

Search

Searching required information is possible either via structured menu which is divided into sections, or via full-text search of the entire contents of this on-line documentation.
Breadcrumbs

This aid will make it possible for you to find out where exactly you are at the moment.

If, for example, the following appears beneath the main menu - ISPadmin Wiki / ENG / Client management / Menu - CLIENTS / Clients / Message Board / Groups - it means that you are:

 

  • in the Wiki documentation of the ISPadmin system
  • in its English localization
  • in the Client management section
  • in the Clients tab
  • in the Message board subtab
  • in the Groups sub-subtab

Changelog

It contains newly added functionalities and modifications of the system which are displayed by versions and issue date. Changelog articles are also displayed in individual sections / pages of the documentation which relate to new functionality or modification. 

Basic orientation

You will find a welcoming menu with basic instruction on trying / implementing / using below. 

FAQ

Frequently asked questions along with most important procedures and settings are listed in FAQ section. 

Colours

Items which refer to real system menu are highlighted in corresponding colour, including their graphical background. Eg. Invoicing Settings Templates Reminders. This is also a working reference to an article. 

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