From: David Miller <davem@davemloft.net>
To: rick.jones2@hp.com
Cc: ian.mcdonald@jandi.co.nz, netdev@vger.kernel.org,
ilpo.jarvinen@helsinki.fi
Subject: Re: [PATCH] make _minimum_ TCP retransmission timeout configurable
Date: Wed, 29 Aug 2007 16:15:28 -0700 (PDT) [thread overview]
Message-ID: <20070829.161528.38309258.davem@davemloft.net> (raw)
In-Reply-To: <46D5FBF3.5050700@hp.com>
From: Rick Jones <rick.jones2@hp.com>
Date: Wed, 29 Aug 2007 16:06:27 -0700
> I belive the biggest component comes from link-layer retransmissions.
> There can also be some short outtages thanks to signal blocking,
> tunnels, people with big hats and whatnot that the link-layer
> retransmissions are trying to address. The three seconds seems to be a
> value that gives the certainty that 99 times out of 10 the segment was
> indeed lost.
>
> The trace I've been sent shows clean RTTs ranging from ~200 milliseconds
> to ~7000 milliseconds.
Thanks for the info.
It's pretty easy to generate examples where we might have some sockets
talking over interfaces on such a network and others which are not.
Therefore, if we do this, a per-route metric is probably the best bet.
Ilpo, I'm also very interested to see what you think of all of this
:-)
next prev parent reply other threads:[~2007-08-29 23:15 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-29 20:52 [PATCH] make _minimum_ TCP retransmission timeout configurable Rick Jones
2007-08-29 21:13 ` Eric Dumazet
2007-08-29 22:11 ` Rick Jones
2007-08-29 21:32 ` Ian McDonald
2007-08-29 21:46 ` David Miller
2007-08-29 22:10 ` Ian McDonald
2007-08-29 22:23 ` David Miller
2007-08-29 22:13 ` Stephen Hemminger
2007-08-29 22:28 ` David Miller
2007-08-29 22:51 ` Stephen Hemminger
2007-08-29 22:58 ` NCR, was " John Heffner
2007-08-29 22:59 ` David Miller
2007-08-29 22:32 ` Rick Jones
2007-08-29 22:29 ` Rick Jones
2007-08-29 22:35 ` David Miller
2007-08-29 22:48 ` John Heffner
2007-08-29 22:52 ` John Heffner
2007-08-29 22:53 ` Edgar E. Iglesias
2007-08-29 23:06 ` Rick Jones
2007-08-29 23:15 ` David Miller [this message]
2007-08-29 23:31 ` Rick Jones
2007-08-30 5:22 ` Krishna Kumar2
2007-08-30 17:10 ` Rick Jones
2007-08-29 23:44 ` John Heffner
2007-09-05 19:04 ` Ilpo Järvinen
2007-09-06 20:39 ` David Miller
2007-08-29 22:09 ` Rick Jones
2007-08-29 22:20 ` David Miller
2007-08-29 22:33 ` Ian McDonald
2007-08-29 22:37 ` David Miller
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