Im pushing on a daily basis, 210Mb/s (megabits). on a Dual Xeon (1.7 Ghz) 1024 Mb Ram(rambus 800Mhz) machine with two of 3coms Fiber Gigabit network cards on a 64Bit bus. I runs great. I have about 200 rules in my firewall, And I still have enough power to run snort with about 10 rules in the snort filters for really special things :)
Now if you needed Fast E you could buy some of the gigabit over copper type cards and do it that way. The reason to use these instead of regular network cards, is the 64 bit card create less interrupts on the bus which keep CPU time lower :) e-mail me if you want more details. On Thursday 07 March 2002 01:48 pm, Joe Patterson wrote: > I was actually just looking at something recently. Intel is selling gigE > cards using 64bit 133mhz "pci-x" bus connections. They claim the bus speed > at 8Gbps. There's a pdf on them at > http://www.intel.com/network/connectivity/resources/doc_library/data_sheets >/ gigabit_over_copper_adapters.pdf. > > I was looking at this because the latest Dells (PowerEdge 1650) have dual > integrated GigE ports, using this chipset. > > Not that I actually have one or can make any statements about the validity > of the above, but if true, getting a gigabit router/firewall for under $2k > is just cool. I'd love to have a few of these to do some actual throughput > tests... (and then, once bandwidth is eliminated as a bottleneck, see how > fast a pair of gigahertz+ processors can do AES ipsec...) > > BTW, I think your calculations are a few orders of magnitude off. If I can > only transfer 500bps across the bus, my modem will severely overload my pc. > > :) Perhaps you meant 500 Mbits/sec. > > -Joe > > > However, 100 megabytes per second ? I think that's beyond the > > standard PCI > > bus capability... > > > > 32bit bus running at 33MHz = approx 1000 bits per second, however > > there are > > (at least) two network cards; you have to read the bits from one > > and write > > them to the other, so this gives a max throughput of 500 bits per second > > (assuming the processor can keep the PCI bus saturated, and the > > NICs can keep > > up with efficient reads/writes). > > > > This is one reason I've never quite understood the existence of Gigabit > > Ethernet cards with standard PCI interfaces..... they're hardly > > going to work > > efficiently. -- Chief Security Engineer | Daniel Fairchild [EMAIL PROTECTED] Unix is like a wigwam -- no Gates, no Windows, and an Apache inside.
