Fabric Inspector licensing model


I want to license facbric inspector for my MSX-6012F-2BFS IB switch,

as a diagnostic extension to the MLNX-OS 3.4.0012

The Mellanox store gives the cost per node, what does that mean ?

Is the cost per switch unit ( managed node in standard network parlor ),

or is it per port of the switch ?

Same question for UFM and UFM Advanced, is the cost per switch unit or per

port ? Does 16 cores refer to the nuimbers of CPU cores in my PC ?

My PC has 2 Opteron AMD 6386SE CPUs with 16 cores each, for a total of 32 cores.

How many licenes do I need ? I do not need to run the soft ware on all cores,

but what does the licensing model require ?