SNMP Monitoring

What is SNMP Monitoring?

Simple Network Management Protocol (SNMP) is a protocol for network management and monitoring. It is mostly used to monitor devices on a network, such as firewalls, routers, switches, servers, printers, bridges, NAS drives, UPS, and more.

In a few words, SNMP allows devices from different manufacturers to share information with network management tools, which will then be able to access and keep track of specific and useful information made available by these devices.

With Domotz, you can monitor specific OIDs (Object Identifier), browse a specific MIB (Management Information Database) or make use of Domotz Pre-configured SNMP sensors.

Additionally, you can configure alerting notifications based on user defined thresholds, and gain insights into performance and availability, to ensure the health of your devices and of your network.

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Procurve SNMP Monitoring

SNMP Monitoring Configuration

Device Credentials

Domotz supports all major SNMP versions (v1, v2c, v3).

SNMP v1 is the original version of the Simple Network Management Protocol, and was designed to monitor devices over TCP/IP networks.

SNMP v2c is very similar to SNMPv1, but it supports 64-bit messages to serve growing networks and increased usage.

SNMP v3 was introduced in 1998, and compared with the previous SNMP versions, its setup is more complex and provides enhanced security, by introducing the two concepts of Authentication and Encryption.

If default community strings are used in your devices, Domotz will automatically start to gather SNMP information to classify your devices and you will immediately be able to define your SNMP sensors in Domotz.

If, otherwise, you customized your SNMP community strings, Domotz SNMP authentication can be set up for the whole network or can be customized for each device.

For example, in this section it is also possible to override community strings for all devices on your network that use SNMP.

Domotz Pre-configured SNMP Sensors

Domotz Pre-configured SNMP Sensors

Our Pre-configured SNMP sensors allow you to get started with SNMP monitoring right away.

All you need to do is open your device SNMP section, and Domotz will let you apply those with a single click.

Which devices with Pre-configured SNMP Sensors are available in Domotz as of today?

Currently, we support Pre-configured SNMP sensors for Printers, UPS and NAS. We will continue to work on adding more and more Pre-configured SNMP sensors.

Here below is a short description of the capabilities for each one of the three sensors.

  1. Printers - with Pre-configured SNMP Sensors for printers you can toner cartridge levels, drum units, supply levels on your printers, and more.
  2. UPS - with Pre-configured SNMP Sensors for UPS, you can get battery status, voltage, current, temperature, estimated remaining minutes, and remaining charge level.
  3. NAS - with Pre-configured SNMP Sensors for NAS, you will get the number of hard disks, volumes, CPU usage, CPU or system temperature, available memory, and so much more.
    These details will be shown in three separate views:
    • Basic Info Table including information about the CPU Usage, CPU Temperature, Total Available Memory, Free Memory, Uptime, System Temperature, Number of Hard disks, Volumes, Last Error Message.
    • Hard Disks Table including details about Hard Disks, Description, Status, Capacity, Info, Temperature, Model.
    • Volumes Table will display Volumes, Description, Free Size, Total Size, Filesystem, Status.

SNMP Sensor Data Monitoring

SNMP sensors history

On top of providing Pre-configured SNMP templates for the above-mentioned devices, Domotz allows you also to manually configure the SNMP sensors you need.

Domotz automatically references thousands of MIBs, finding the MIB associated with the device you are interested in. Simply type the name of the sensor you wish to monitor and the OID is automatically discovered.

Should you wish to manually add an OID, you can easily do this by entering the OID and associating its output type for this Sensor.

After the Sensors configuration has been completed, you will see them listed with the value that the device is returning for that OID. Domotz starts tracking these sensors on a defined regular basis and historically graphs these values for up to 30 days.

Room Temperature and Humidity Monitoring

You can use SNMP sensors to know when temperature and humidity values of a room rise or fall, set alerts and be notified when critical values change.

This is especially useful for server room temperature monitoring which is of growing interest to MSPs and IT professionals since these rooms store the most critical network equipment.

In addition you can set up SNMP Sensor triggers to Shared Alerts, so you can automatically open tickets, send notifications through WebHooks and generate emails as appropriate.

Here you can find out more about server room temperature and humidity monitoring.

Need more information about SNMP Sensors?

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