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To: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
cc: exidor@nimbus.superior.net (Christopher Masto), question@FreeBSD.org,
        isp@FreeBSD.org
Subject: Re: ppp over vty possible ? 
In-reply-to: Your message of "Mon, 14 Oct 1996 15:29:34 BST."
             <199610141429.PAA13506@labinfo.iet.unipi.it> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Mon, 14 Oct 1996 08:31:19 -0700
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>large block to attempt compression. But -- apart for this being a
>symptom of poor design in the modem -- what is intriguing me is
>the delay -- 200ms -- so close to what is a TCP_FASTTIMEOUT.

   fastimeout can't be involved with pings since they use ICMP, not TCP. 14.4K
modems usually have large delays due to buffering and compression delays. Some
are better than others. I used to see 170ms on certain Intel modes, and as low
as 110ms on certain 28.8K Hayes modems. Supra's are usually about the worst
at near 200ms.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project