From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Heffner Subject: Re: 2.6.17 regression: Very slow net transfer from some hosts Date: Tue, 11 Apr 2006 16:54:35 -0400 Message-ID: <443C178B.3030805@psc.edu> References: <443C03E6.7080202@gentoo.org> <443C024C.2070107@psc.edu> <443C0B74.50305@gentoo.org> <443C09A7.2040900@psc.edu> <443C1738.20605@gentoo.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: To: Daniel Drake In-Reply-To: <443C1738.20605@gentoo.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This is almost certainly due to a buggy firewall that doesn't understand TCP window scaling. I've usually seen this in the past with OpenBSD firewalls. Do you have one of these in your path? Thanks, -John