From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x22d.google.com (mail-oi0-x22d.google.com [IPv6:2607:f8b0:4003:c06::22d]) (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 4CD2121F417; Thu, 19 Feb 2015 18:04:01 -0800 (PST) Received: by mail-oi0-f45.google.com with SMTP id i138so358834oig.4; Thu, 19 Feb 2015 18:04:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=RrGZcLFa7BZKtyx8lsuzUKVh5u4b+KfIRTb+p9NhA3g=; b=I1fXC1dVOjk030B11YpjgNw/CUnf7Kzm7N/cLhUMXOAsvC1atrzX/HvEXoKvIw7INd /CZljmZN53bd5vnb3i4/SchyW9LFe9AgoEZpmPke1g/49jBXLO8ngAklrYOr6+bJ8nQJ mzmVyricmB5tDX4uOnIgWg1cTmhWbAtwClhQ84oikJvby1o+kLQNTiPDInaqS8BD+eb/ e2M897+J78iac3YAsaR86FayT7q0r7xePuPrdE3jV5ptIxdYSZVj4AtyJ+LM5IcTniI6 VL2KIQzcfjIY+PYsXmzjVTAPsFWG8JqIbNOFrodrtbap6VDhKHqzlxTaD+Jge3ze4mvL sLgA== MIME-Version: 1.0 X-Received: by 10.202.111.131 with SMTP id v3mr4557567oik.133.1424397840949; Thu, 19 Feb 2015 18:04:00 -0800 (PST) Received: by 10.202.51.66 with HTTP; Thu, 19 Feb 2015 18:04:00 -0800 (PST) Date: Thu, 19 Feb 2015 18:04:00 -0800 Message-ID: From: Dave Taht To: Sebastian Moeller Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: cerowrt-devel , bloat Subject: [Cerowrt-devel] Two d-link products tested for bloat... X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Feb 2015 02:04:30 -0000 I ordered a d-link DGL-5500 from amazon this week. It arrived today. This is their almost top of the line 802.11ac router. Their streamboost QoS feature - the first thing you see on their configuration page - LOVELY gui, actually! - was entirely broken in the uplink direction. Admittedly that was the first generation firmware. I know how hard it is to get that right. So I tried to update it. My attempt to update the firmware for it from their website, bricked it. And it appears the only way to update it, or to update it to openwrt, is via a gui, not tftp. ok.... so... In an orgy of giving companies that don=C2=B4t deserve my money, money, I also got the DIR-860L. It was the "A1" model, which of course, has no support in openwrt, and there is no way to figure out if an online retailer is selling the entirely different B model or not. Their version of the QoS system was entirely broken in *both directions*. While I was mildly happy that it used weighted fair queuing by default, bandwidth limitation failed to work *at all*, except, that it did classify CS1 traffic, as *higher* priority than best effort. So in both cases, no matter what you did, even if you tried to do the right thing... you had bufferbloat induced on the next hop (if, I was trying to actually test this on a cablemodem or dsl link) I would really to flush this crap from the marketplace, and the only way left, I think, is to stop being a nice guy. My problem is, that I really am a nice guy, and the only way I could possibly do that is put on a persona, do a blog, call it something like the angry engineer, or something like that. But I am pretty sure that venom I would have to summon on a daily basis would be bad for my blood pressure. Maybe we could all get together on it, and only raise our collective BP by a point or three each? The Avenging Engineers? the relevant netperf-wrapper data is in each of these dirs: http://snapon.lab.bufferbloat.net/~d/DIR-860L/dir-860L-bandwidth-broke-in-b= oth-directions.png http://snapon.lab.bufferbloat.net/~d/dgl-5500/totalfailure-to-control-the-u= pload.png On Wed, Feb 18, 2015 at 1:28 AM, Sebastian Moeller wrote: > Hi Felix, hi List, > > > On Jan 25, 2015, at 12:09 , Felix Fietkau wrote: > >> Here's another candidate: >> http://us.dlink.com/products/connect/wireless-ac1200-dual-band-gigabit-c= loud-router-dir-860l/ >> >> CPU: MT7621 (dual-core MIPS, 880 MHz, 4 virtual CPUs) >> The device has preliminary OpenWrt support already. In my tests, handles >> ~820 Mbit/s NAT without any special acceleration features (with fq_codel= , >> no shaping). Haven't done any tests with shaping yet. >> Wifi (MT7612E) is still buggy with my mt76 driver, but I'll fix that in >> March when I get back from vacation. >> >> - Felix > > I am currently searching for a replacement for my wndr3700v2 as i= t is running out of steam on my temporary 100/40 Mbps link. This thing look= s quite decent, but I notice between https://wikidevi.com/wiki/D-Link_DIR-8= 60L_rev_A1 and https://wikidevi.com/wiki/D-Link_DIR-860L_rev_B1 that d-link= reused the sam name for quite different hardware implementations, and only= the more recent B1 revision will work for us. (Is it just me or do you als= o find this tendency to not even add the revision to the official name a bi= t annoying?) > So, does anybody here now how to order a specific revision in Ger= many? Or is the only way to wait a bit and hope the A1 revision clears the = retail channel so only B1=E2=80=99s are left? I notice that from looking at= the internal photos for both devices posted on the FCC site that the old A= 1 Broadcom revision has its USB port "above" the ethernet ports while the B= 1 Mediatek revision has the USB port between DC in and below the ethernet p= orts. Am I correct in assuming that deployed hardware needs to match the FC= C design exactly (that is, in case of revision a new FCC submission with ne= w photos is required)? > > Best Regards > Sebastian --=20 Dave T=C3=A4ht thttp://www.bufferbloat.net/projects/bloat/wiki/Upcoming_Talks