Number of interfaces using bridged-flow-statistics?

Number of interfaces using bridged-flow-statistics?

I have a 6509 that has 240 ethernet interfaces on it for my servers. I understand that if I want server-to-server traffic within the same subnet I need to turn on bridged-flow-statistic on the SUP module. If I do that how many interfaces show up in NFA? One per VLAN? One per port? Any info will help

I am asking because I want to know which license I need to buy.

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