Because in both cases the full packet content, header and all need/would
be move between the network card vlan 2 to memory then back to the same
card vlan 3 for example, oppose to card 1 to memory, then card 2?
So, it might only make a difference then on big packets that would need
to cross over a PCI bridge then? Or not even then?
I am really trying to find ways to increase the pps limitations.