North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Software router state of the art
* Joe Greco: > I'm not sure where the claims about "{one, few} flow{s}" are coming from. > Certainly the number of flows on a typical UNIX box acting as a router is > not that relevant unless you specifically configure something like > stateful firewalling, because the typical UNIX box simply doesn't have a > *concept* of "flows." It deals with packets. You are mistaken. Linux routing is flow-based. Ever wondered what those "dst cache overflow" messages mean you see during a DoS attack? It's the flow cache complaining that it can't expire records in an organic manner. I don't know much about FreeBSD. I think it got a route cache after FreeBSD 4, too. That's the reason why the FreeBSD 4 IP stack is still so popular.
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