Date: Sat, 07 Jul 2001 19:44:37 -0600 From: Wes Peters <wes@softweyr.com> To: Bakul Shah <bakul@bitblocks.com> Cc: net@FreeBSD.ORG Subject: Re: fastforwarding? Message-ID: <3B47BB05.36E32094@softweyr.com> References: <200107061837.OAA27501@illustrious.cnchost.com>
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Bakul Shah wrote:
>
> > This discussion has devolved into yet another idiotic bikeshed. Nobody
> > claimed anwhere along the line that fastforwarding was a solution to
> > all routing ills, suitable for use in a core router, or acceptable for
> > any of the wildly esoteric CRAP espoused in the past 10 or 12 messages
> > in this thread. If you don't like fastforwarding, don't use it, but
> > don't get in the way of people who use it and maintain it.
>
> I don't think you realize that as implemented it is not
> suitable for *any* router with even a single host that will
> send to hundreds of thousands of distinct ip addresses over
> any period of time.
Timeouts? The number of machines in my domain -- either of them -- that
run through hundreds of thousands of distinct ip addresses and keep them
active for any length of time is ZERO.
You're FUDding away on this point because you haven't bothered to read
the code. Fastforwarding will create at most IPFLOW_MAX routes, defined
as 256 in 4.3-STABLE. It times out unused routes as needed every IPFLOW_
TIMER (default 5 * PR_SLOWHZ) seconds.
Please come back when you have actually read the code.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
wes@softweyr.com http://softweyr.com/
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