From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?Tmljb2xhcyBkZSBQZXNsb8O8YW4=?= Subject: Re: [PATCH] bonding: added 802.3ad round-robin hashing policy for single TCP session balancing Date: Sat, 22 Jan 2011 13:48:52 +0100 Message-ID: <4D3AD234.7080709@gmail.com> References: <20110114190714.GA11655@yandex-team.ru> <17405.1295036019@death> <4D30D37B.6090908@yandex-team.ru> <26330.1295049912@death> <4D35060D.5080004@intel.com> <4D358A47.4020009@yandex-team.ru> <4D35A9B4.7030701@gmail.com> <4D35B1B0.2090905@yandex-team.ru> <4D35BED5.7040301@gmail.com> <28837.1295382268@death> <4D370DC7.6000500@yandex-team.ru> <4D3745AF.5040808@gmail.com> <4D399062.3060004@yandex-team.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Jay Vosburgh , John Fastabend , "netdev@vger.kernel.org" To: "Oleg V. Ukhno" Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:41872 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752810Ab1AVMsz (ORCPT ); Sat, 22 Jan 2011 07:48:55 -0500 Received: by wwa36 with SMTP id 36so2818512wwa.1 for ; Sat, 22 Jan 2011 04:48:54 -0800 (PST) In-Reply-To: <4D399062.3060004@yandex-team.ru> Sender: netdev-owner@vger.kernel.org List-ID: Le 21/01/2011 14:55, Oleg V. Ukhno a =C3=A9crit : > On 01/19/2011 11:12 PM, Nicolas de Peslo=C3=BCan wrote: > >> If you have time for that, then yes, please, do the same test using >> balance-rr+vlan to segregate path. With those results, we whould hav= e >> the opportunity to enhance the documentation with some well tested c= ases >> of TCP load balancing on a LAN, not limited to 802.3ad automatic set= up. >> Both setups make sense, and assuming the results would be similar is >> probably true, but not reliable enough to assert it into the >> documentation. >> >> Thanks, >> >> Nicolas. >> > Nicolas, > I've ran similar tests for VLAN tunneling scenario. Results are > identical, as I expected. The only significat difference is link fail= ure > handling. 802.3ad mode allows almost painless load reditribution, > balance-rr causes packet loss. Oleg, Thanks for doing the tests. What link failure mode did you use for those tests ? miimon or arp moni= toring ? Nicolas.