This is more out of curiosity than anything else but why were bit masks not included as part of the OF1.0 spec to match flows on and only subnets/prefix masks were included? Was this purely because this would integrate straight in with existing tcams on existing vendor hardware networking gear or was there another reason to this.
I see a few load balancing for DPI use cases emerging out there amongst customers who view realize the potential of Openflow and envision leveraging the power of the protocol but not supporting bit masks to match flows is a big road block. -- Cheers - Kulin
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