SFlow on PowerConnect 2048P

SFlow on PowerConnect 2048P

I have enabled sflow on a PowerConnect 2048P. I have set polling and sampling on 3 interfaces but NFA in OpManager is showing 15 interfaces. Am i going to need to license all 15 NFA interfaces for that device?


 Poller        Receiver  Poller
 Data Source   Index     Interval
 -----------   -------   -------
 Gi1/0/1       1         30
 Te1/0/1       1         30
 Te1/0/2       1         30

PNR-OFFICE#show sflow 1 sampling

 Sampler      Receiver  Packet          Max Header
 Data Source  Index     Sampling Rate   Size
 -----------  -------   -------------   ----------
 Gi1/0/1      1         1024            128
 Te1/0/1      1         1024            128
 Te1/0/2      1         1024            128




OpManager Ver. 12200

Thank you,