From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail2.tohojo.dk (mail2.tohojo.dk [IPv6:2a01:4f8:200:3141::101]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id AA50621F1EF for ; Thu, 20 Mar 2014 09:20:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at example.com Received: by alrua-kau.localdomain (Postfix, from userid 1000) id 50B828FAE5; Thu, 20 Mar 2014 17:20:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toke.dk; s=201310; t=1395332418; bh=HTRUeoa2T+hvBZXWyek/pkKF/M3unq8Ff0zr2pGlwVE=; h=From:To:Cc:Subject:References:Date:In-Reply-To; b=GDx1Bpe63jZq+UwW5+8SMTnmoMJ6IlhqWi5qst3kTk9v2xtMO4VW1IkSOFbV5W2BD YdkocNKC3JYt46b2HC/ZhMMF0vnzEsMLT+tCRzP3ZyOfIYjQiLko39OnW0H6rLlZ3n 1+AM3ROKui6+NyMKZjP62z7CDRd0pFs38S/pMXNs= From: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= To: Dave Taht References: <20140318145221.GA31327@sesse.net> <07BD4518-2A7E-4F43-8978-791E3B2BDA2A@cisco.com> Date: Thu, 20 Mar 2014 17:20:15 +0100 In-Reply-To: (Dave Taht's message of "Tue, 18 Mar 2014 14:54:41 -0400") Message-ID: <87eh1wc05c.fsf@toke.dk> Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Cc: bloat Subject: Re: [Bloat] AQM creeping into L2 equipment X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Mar 2014 16:20:26 -0000 --=-=-= Content-Type: text/plain Dave Taht writes: > The standard test that I'm most interested in is the 2 ports into 1 topology: > > SOURCE > | > SWITCH > | | > BOX1 BOX2 Did a couple of tests of this with the default configuration of a Cisco WS-C2960X-24TD-L switch. Graphs and data files here: http://kau.toke.dk/experiments/cisco-switch/cisco-c2960x.html Conclusion: My test boxes need offloads and quite a bit of driver queueing to drive the 1Gbps link, which makes it difficult to say anything about the switch... Haven't fiddled with the QoS settings, but from what I can see they are rather limited, and takes a great deal of fiddling to setup (at least for someone who, like me, has pretty much zero experience with Cisco gear). If someone has suggestions for other switch configurations that would be worthwhile testing (as well as some help on how to configure it), I'll be happy to run the tests. -Toke --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBCAAGBQJTKxU/AAoJEENeEGz1+utPS6AH/0+0DQX/5XEiViOtw0lnN+jq NOnEjYWKuq9BYKCRnwZu62pt+wAFeL/9VPEtUeUgG8hoUVvpsl5SBPFHAWTWvEEv /u08WcS/HyBJoxNlSxWyV9oT0ImKsV3j3HNUYmHw96DoUMXbY0x25F2MZeoaAUXb Q8m784ixjCOQVNfqCc0JMf3Hl1cYRjLjybIwZ3EXJ1aPO97sB/dFuidf6649xUdr ydoEAlCdJXPg2Q6ySoP8jc/cAwrL1gz1nbbX0VZeatO381Rb5kRJcbrMbYKGvcQg +of4/ol1jovNyXYHaGB7236k+eHT/HNbt9FPGvEy8r4/3yeEZY238f2HwOPPjis= =o+ln -----END PGP SIGNATURE----- --=-=-=--