North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Software router state of the art
On Wed, Jul 23, 2008 at 11:24 AM, <[email protected]> wrote: > On Wed, 23 Jul 2008 02:52:56 PDT, Zed Usser said: >> There's been some discussion on the list regarding software routers > > The performance of "software routers" has always had a hardware component. > > Basically, for the vast majority of them, take your PCI bus bandwidth, > count how many times a packet has to cross it, and do the math. You can't > forward more than that much traffic no matter *what* software you run on > that box. If that number falls short, stop right there and look for > some box of different design that has the required backplane bandwidth. The Endace DAG cards claim they can move 7 gbps over a PCI-X bus from the NIC to main DRAM. They claim a full 10gbps on a PCIE bus. Regards, Bill Herrin -- William D. Herrin ................ [email protected] [email protected] 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
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