Re: Linux and Network Flight Recorder

Henning P. Schmiedehausen (hps@tanstaafl.de)
22 Jun 1999 23:04:38 +0200

mfisk@lanl.gov (Mike Fisk) writes:

>We have NFR working using Alexei's ring buffer code in conjunction with
>the Linux kernel packet filtering.

There are _big_ differences between "we have it working" and "we have
it working and it captures every package on a saturated 100 (1000)
MBit interface.

mjr clearly stated what they need: zero-copy input BPF. It seems that
some OS (namely *BSD) delivers this.

[...]
>> Author: "Marcus J. Ranum" <mjr@nfr.net> at Internet-SA
>> Date: 99/06/21 11:21 PM

[...]
>> Tell you what, smarty-pants. I'll give you $4,000 and a
>> cool NFR T-shirt if you write a zero copy-per-packet
>> input bpf emulation for Linux. Ok? I'll do one better than
>> you can do: I'll put my money where my mouth is.

Kind regards
Henning

-- 
Dipl.-Inf. (Univ.) Henning P. Schmiedehausen --             hps@tanstaafl.de
TANSTAAFL! Consulting - Unix, Internet, Security      


Hutweide 15                   Fon.: 09131 / 50654-0    "There ain't no such
D-91054 Buckenhof             Fax.: 09131 / 50654-20    thing as a free Linux"


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