Cumulus OS running on any hardware platform does not have an out-of-the-box device template in Solarwinds NCM.

Create a device template using the below commands and assign it to any Cumulus device.

<Configuration-Management Device="Cumulus Switch" SystemOID=" 1.3.6.1.4.1"> 
<Commands> 
<Command Name="RESET" Value="" /> 
<Command Name="Running" Value="running" /> 
<Command Name="DownloadConfig" Value="net show configuration 
commands" /> 
<Command Name="Version" Value="net show version" /> 
<Command Name="VirtualPrompt" Value="\$"/> 
<Command Name="EnableIdentifier" Value="$" /> 
<Command Name="UseVirtualPromptForCommands" Value="true" /> 
<Command Name="Disconnect" Value="exit" /> 
<Command Name="MenuBased" Value="False" /> 
<Command Name="Startup" Value="" /> 
</Commands> </Configuration-Management>

Thanks