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Date:      Thu, 7 Mar 1996 13:36:09 -0500
From:      "Garrett A. Wollman" <wollman@lcs.mit.edu>
To:        Craig Shrimpton <craigs@venus.os.com>
Cc:        questions@freebsd.org
Subject:   Can someone tell me what this kernel message means?
Message-ID:  <9603071836.AA06351@halloran-eldar.lcs.mit.edu>
In-Reply-To: <Pine.BSF.3.91.960307101003.19452B-100000@venus.os.com>
References:  <Pine.BSF.3.91.960307101003.19452B-100000@venus.os.com>

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<<On Thu, 7 Mar 1996 10:13:23 -0500 (EST), Craig Shrimpton <craigs@venus.os.com> said:

> Greetings,
> I'm getting this message with increasing frequency.  Can anyone tell me 
> what it means/

> /kernel: in_rtgtimo: adjusted rtq_reallyold to xxx

> The 'xxx' is a number usually between 200 to 2000.


It is a number that starts at .75*(3600 s) and goes down by 25% every
ten minutes until there are either less than 128 unreferenced entries
in the per-host cache, or the value gets down to 10 s.  You need to
think about how many different systems regularly start TCP connections
to your machine and what sort of performance-memory tradeoff you want
to make, and adjust these MIB variables accordingly:

net.inet.ip.rtexpire: 3600
net.inet.ip.rtminexpire: 10
net.inet.ip.rtmaxcache: 128

-GAWollman

--
Garrett A. Wollman   | Shashish is simple, it's discreet, it's brief. ... 
wollman@lcs.mit.edu  | Shashish is the bonding of hearts in spite of distance.
Opinions not those of| It is a bond more powerful than absence.  We like people
MIT, LCS, ANA, or NSA| who like Shashish.  - Claude McKenzie + Florent Vollant



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