Layer 3 interface on cisco Nexus 5548

I'm trying to monitor my layer 3 (vlans) with Cacti.  it sees the interface
but I get no data.  I can see traffic on the CLI but no graphs in
Cacti(just layer 3).  Since the 5548 requires a daughter card to get layer
three, is that why I see no data on my graphs?

TIA

Scott
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