>Can't get 10 gigabit thru a PCI-X slot, it doesnt have the bandwidth, you need >PCI Express, in >fact you will find that lots of factors will come into play and might keep you >from achieving >optimal thruput. > >>For a two port adapter you will need an 8x PCIE slot, preferably Gen 2, and >>if all three systems >don't have that its gonna slow everyone down. > >Further, once you involve packet forwarding it gets even more demanding. > >Trying to do it 'on the cheap' and you might get 3 or 4 Gb, maybe even worse >depending.
Thanks. I just spoke of pci-x because that was the form factor of the Sun adapter. Ok, so let's say I have pci-e 16 or 8x for all adapters, again with the same "just out of date" commodity pcs (intel core or c2d, etc.) and the same network layout: (a) <-- cable --> (b) <-- cable --> (c) you're saying I can start to approach actual 10 gb/s throughput ? I guess there is one layer of packet forwarding in place, since I am bridging on (b) ... but is that going to just be a small (10% ?) hit, or are we talking 50% ? Finally, are a few (5 or 6) simple ipfw rules (like, block tcp 130, or block xmas tree packets, etc.) going to kill me ? Thanks. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"