vSNMP is a optional component of the VSM familty of products, which enables to forward SNMP based status information from 3rd party devices into VSM for logical processing or visualisation. It is contained in each release and can be downloaded from Lawo's download server. In the release packages, you’ll find a package “vSNMP”.
vSNMP has been build to enable SNMP monitoring of networked devices within a VSM install. The sole purpose was and is for health monitoring, but _NOT_ specifically for parameterization through SNMP, although it would possible. The recommended operational mode is “operation based on traps”. Polling is undesired, as it would causes intervals of requests, which will create incremental data traffic in the network and the monitored device.
vSNMP connects to vsmStudio through an Ember+ connection, while it receives SNMP data from devices from the underlying infrastructure.
vSNMP Topology
The topology of vSNMP is like this:
If you are about to monitor SNMP status message from a specific type of device, vSNMP would need to know about that device's “MIB” to translate device specific SNMP messages. Every specific representation of data from the same type of device is handled as a DEVICE CLASS.
Example: E.g. multiple servers of the same type should be monitored by VSM for PSU health. As the servers are of the same type, the Servers MIB is loaded to vSNMP and a device class is created, which contains the PSU status. It is then possible to use this class to create as many separate “SERVER” nodes in vSNMP as you have of that specific type. Each device class enables vSNMP to monitor as many devices of that class as necessary. If you fancy to monitor the server FAN states, you can either add that parameter to the first device class, or - in case you want to monitor fan status separate of the PSU status, you add another device class for this parameter.
The example above explains the concept, although it might not make total sense in real life.
Redundancy
vSNMP is not offered and cannot be operated with a redundancy option.
SNMP Compatibility
vSNMP is compatible with SNMP V1 and SNMP V2.