From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-x22b.google.com (mail-we0-x22b.google.com [IPv6:2a00:1450:400c:c03::22b]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 8DAD721F112 for ; Tue, 18 Mar 2014 11:57:48 -0700 (PDT) Received: by mail-we0-f171.google.com with SMTP id t61so6139495wes.2 for ; Tue, 18 Mar 2014 11:57:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=rbGPRWB1OEYDnCgZ/DpeSWrg+p7uveKdvblpJqbBZv4=; b=dxq/ktNr1yO69sTlJWFQyYLvX1MvbLLsB7UCP9LXr2p2do/Kp8kw4knJ8+tJO0ogfJ TiXBxKRIXRy7cM2DVyHXvdElShOHTkYfo2uHKUaY3NTyBB3zxSwlRyNK7wbKYEh0YYyh 7JbazemGP7p0ED7wOr4TLA94apHnXiu/EayDKUyYewpE4zOYRke0lIMTBZBzRbbEkq6U lAgtwsyF3scNuP4a0ShJjJu7Xyk43zWV8hyQffBsmkNUK+2AE9STESlk7RJAHKUrLJxd dVKPEaPi98DrPT6Kgq186fGEsqxRIhkAZOHXtDJOPl97rB+GRXyBkbxdpQ+160cZXGy1 /6eA== MIME-Version: 1.0 X-Received: by 10.194.187.50 with SMTP id fp18mr55222wjc.89.1395169066506; Tue, 18 Mar 2014 11:57:46 -0700 (PDT) Received: by 10.216.8.1 with HTTP; Tue, 18 Mar 2014 11:57:46 -0700 (PDT) In-Reply-To: <07BD4518-2A7E-4F43-8978-791E3B2BDA2A@cisco.com> References: <20140318145221.GA31327@sesse.net> <07BD4518-2A7E-4F43-8978-791E3B2BDA2A@cisco.com> Date: Tue, 18 Mar 2014 14:57:46 -0400 Message-ID: From: Dave Taht To: "Fred Baker (fred)" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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: Tue, 18 Mar 2014 18:57:49 -0000 On Tue, Mar 18, 2014 at 2:05 PM, Fred Baker (fred) wrote: > > On Mar 18, 2014, at 10:17 AM, Dave Taht wrote: > >>> I thought some of you might be interested in a small observation I made >>> today: Cisco 2960-X, their latest low-end (?) L2 access switch offering >>> (well, it can do some L3 as well, especially the 2960-XR, but I don't t= hink >>> it's very commonly used), has WRED on its feature list. They also have >> >> I would certainly like good documentation on how to configure it and >> results with/without on a two ports into one test. > > Thus saith google: http://www.cisco.com/c/en/us/td/docs/switches/lan/cata= lyst2960x/software/15-0_2_EX/qos/configuration_guide/b_qos_152ex_2960-x_cg/= b_qos_152ex_2960-x_cg_chapter_010.html from what I read here, SRR is something that rotates between 4 hardware queues, a far cry from SFQ. And WTD (weighted tail drop) does not look like RED, either. --=20 Dave T=E4ht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.= html