From: <chuckw@altaserv.net>
To: Scott Laird <laird@internap.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] 2.2.19 -> 80% Packet Loss
Date: Fri, 15 Jun 2001 07:17:54 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.33.0106150711350.20189-100000@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.33.0106141636330.2642-100000@laird.ocp.internap.com>
> You can fix this by upping the socket buffer that ping asks for (look
> for setsockopt( ... SO_RCVBUF ...)) and then tuning the kernel to
> allow larger socket buffers. The file to fiddle with is
> /proc/sys/net/core/rmem_max.
Currently it is set to 65535. I doubled it several times and each time saw
no change when I sent it a ping flood with packet size 64590 or higher.
What sort of magnitude were you thinking?
> That doesn't really answer why you'd want to fling that many 64k-ish
> ping packets around, though.
No reason specifically other than intuition. Just kinda stumbled on to
this one.
-Chuck
--
Chuck Wolber
System Administrator
AltaServ Corporation
(425)576-1202
ten.vresatla@wkcuhc
Quidquid latine dictum sit, altum viditur.
next prev parent reply other threads:[~2001-06-15 14:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-14 21:17 [BUG] 2.2.19 -> 80% Packet Loss chuckw
2001-06-14 23:44 ` Scott Laird
2001-06-15 14:17 ` chuckw [this message]
2001-06-15 17:56 ` Scott Laird
2001-06-15 1:14 ` José Luis Domingo López
2001-06-15 9:12 ` Tim Moore
2001-06-15 9:10 ` Tim Moore
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