<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: SNMP Library Sensor

Library

The path to the .oidlib file that this sensor uses.

Category

Select the parameters that you want to monitor. The list is specific to your setup. The list contains all counters that are available in the .oidlib file that match the target device.

Depending on the type of the selected entries, PRTG creates the following sensors:

• SNMP Custom Advanced: For up to 10 channels for 10 OIDs each. For example, 22 selected single values result in 3 sensors: 2 sensors with 10 channels and 1 sensor with 2 channels.
• SNMP Custom String: For each selected entry that returns a string value.
• SNMP Custom Table: For up to 10 channels for 10 columns per row. The channels represent the values in the columns of the same row.

Once you create a custom SNMP sensor, you can create a device template from it and prepare it for distribution. For example, you can refine the template with better name templates.

Sensor Name

Enter a name to identify the sensor. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.

If the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?

Parent Tags

The tags that the sensor inherits from its parent device, parent group, and parent probe.

This setting is for your information only. You cannot change it.

Tags

Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.

It is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).

For performance reasons, it can take some minutes until you can filter for new tags that you added.

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

• snmplibrarysensor

Priority

Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority () to the highest priority ().

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how different channels are shown for this sensor:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

APC UPS.oidlib

Monitors uninterruptible power supplies (UPSs) from APC American Power Conversion Corp.

APCSensorstationlib.oidlib

Monitors alarm status, communication status, humidity, and temperature as shown by an APC sensor station.

Basic Linux Library (UCD-SNMP-MIB).oidlib

Monitors basic system parameters on Linux systems, such as memory, disk and swap, CPU, and more.

cisco-interfaces.oidlib

Monitors Cisco-specific parameters, for example, the number of present network interfaces on a system, several states of an interface (admin, oper, speed, type, errors, discards, etc.), and more.

cisco-queue.oidlib

Monitors queues on a Cisco interface, for example, queue depth and its maximum, discarded messages from the queue, the number of the queue within the queue set, and more.

Dell Storage Management.oidlib

Monitors Dell storage devices. Possible parameters include disk arrays, battery and power supply, fan and temperature, virtual disk, and more.

Dell Systems Management Instrumentation.oidlib

Monitors the hardware of Dell systems. Possible parameters include ACPower and battery, alerts, base board, BIOS, Baseboard Management Controller (BMC), chassis, COO, cooling, event log, firmware, integrated development environment (IDE), keyboard, memory, port, network, processor, Small Computer System Interface (SCSI), system, temperature, USB, universally unique identifier (UUID), and more.

HP LaserJet Status.oidlib

Monitors toner, paper, and jam status of an HP LaserJet printer.

Linux SNMP (AX BGP DisMan EtherLike Host).oidlib

Monitors different aspects of Linux systems.

This file might detect a very large number of interfaces. It might take a few seconds until the selection table appears.

Linux SNMP (Framework Proxy Noti v2).oidlib

Monitors different aspects of Linux systems.

This file might detect a very large number of interfaces. It might take a few seconds until the selection table appears.

Linux SNMP (IP Net SNMP Noti OSPF RMON SMUX).oidlib

Monitors different aspects of Linux systems.

This file might detect a very large number of interfaces. It might take a few seconds until the selection table appears.

Linux SNMP (Source TCP UCD UDP).oidlib

Monitors different aspects of Linux systems.

This file might detect a very large number of interfaces. It might take a few seconds until the selection table appears.

Paessler Common OID Library.oidlib

Monitors many common hardware devices. It is used for several sensors and is encrypted.

SNMP Informant std.oidlib

Monitors logical disks, processor, memory, and network interface on Windows systems.