Daniel W. McRobb <dwm@ans.net> wrote:

Doing that at 10 kpps is not going to be a solution any time soon.

You're kidding, right? 10kpps has been doable (and done) for years. Did you forget a zero or two?

Hm. The existing boxes which can do 100kpps can't do accounting at that speed. Not in the real life. (Where have you seen a 1Mpps box which actually _works_?)

The vBNS folks are about to release an OC-3 header sniffer that runs on a Pentium box. Rumor has it that it'll handle OC-12 as well. There's a presentation of it on the USENIX agenda.

Sniffing and logging are two very different things.

I would also wish you luck with logging SA/DA pairs at places like .ICP.NET. where source/destination matrix is about 1-2 millon entries long.

1-2 million is not much. Even in the NSFNET days, I worked w/ 5-million-cell net matrices. All it takes is memory and some CPU.

1-2 _simultaneoulsy_, not over period of time. The 1-hr matrix would be two orders of magnitude bigger. Anyway, it does not make any difference, as the box capable of logging at some speed N is going to cost about the same as a router of the same speed N (or more). I'm not sure logging worth it.

We're not sniffing a shared FDDI ring w/ these UNIX boxes. They get data from the routers.

What kind of routers? NSSes? You can't get that for ciscos, sorree... --vadim