From owner-freebsd-net  Fri May  1 23:42:54 1998
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To: Chris Csanady <ccsanady@friley585.res.iastate.edu>
cc: Pierre Beyssac <pb@fasterix.freenix.org>, freebsd-net@FreeBSD.ORG
Subject: Re: Fwd: NetBSD network code improvements 
In-reply-to: Your message of "Sat, 02 May 1998 01:05:07 CDT."
             <199805020605.BAA04820@friley585.res.iastate.edu> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Fri, 01 May 1998 23:41:16 -0700
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>>>I think A lot of their stuff is generally useful, the MTU discovery
>>>stuff for example (although I don't exactly know what is in -current
>>>and maybe we don't need to integrate NetBSD stuff).
>>
>>   We've had Path MTU Discovery in FreeBSD for a couple of years now. It
>>includes support for timing out clone routes.
>
>This is sortof unrelated, but how does our syn flood code compare to the
>NetBSD syn cache mechanism?  The syn cache code seems like a generally
>good idea..

   I think it might be more correct to say "the BSD/OS syn cache mechanism",
since that's where the idea originated, although I don't know if the NetBSD
code is their own or if it came from BSDI.
   Yes, I think the SYN cache is probably something we should have. I'm not
overly thrilled, however since I think it unnecessarily obscures the code
and of course slows it down a bit.

-DG

David Greenman
Co-founder/Principal Architect, The FreeBSD Project

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