click perform effects with respect to RAM

[Gordon Lee]

> hmmm, if the packets have not as destination MAC address the MAC address
> of the NIC, and the interface is not in promiscuous mode, the packets
> don't traverse the PCI bus ? or am I wrong ? (and it is not the
> broadcast MAC address)

Good point, in our application we use promiscuous mode extensively,
so I am used to taking it for granted.  So yes, if the cards are not 
in promiscuous mode, and the packets do not pass the mac address 
filters in the controller, then they will not traverse the PCI bus.

    - GL