From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-il1-x135.google.com (mail-il1-x135.google.com [IPv6:2607:f8b0:4864:20::135]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 40E483B29D for ; Tue, 2 Jun 2020 11:45:35 -0400 (EDT) Received: by mail-il1-x135.google.com with SMTP id b5so7174747iln.5 for ; Tue, 02 Jun 2020 08:45:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=NVq0shFVAain1cVAp9pnHiGtefbd9JyqHFAPNxhuDXE=; b=T1/MjWXDcdMkH2ZAC9F76daeaOzCPHLRLN1Bot4Fb+6oC6uWlq0FlORynReH2pEf2i 8hX238V7jwfJB3Ef8Vaigdeihnre7QIOxJNlJO8G0CzeJwBQzvlihrYEEQPawHX0FRnT wm939WJ8t/QlrPO0wmJ2cHI7DS+yRmDd1hvGUJxk7KTL050UMj5M7RNYAdYTxWyJjzNP tK7RlTb92ukoP5kZErbX3v6d2MiXHaSdfI1MVdrQLGPEpJaAYzLjb8Wm25MVDLd1Bbvc TStCEuTzuAusoxCW+sNVFYzNV864mpXiNEeLxNapVXFqJo3YQ+k4pOZxUBr6NKsN7RWC 43mA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=NVq0shFVAain1cVAp9pnHiGtefbd9JyqHFAPNxhuDXE=; b=GlNKZlRWVjYEvS/l8M+U+jE4TKVPhTFLGE7uw2XCTD9Cbq/zv4uePfwqt7mwV+GnFQ XX9wkKJodSHY9dKXGuA4nti9q9OUCpALc3eaTvRZBT1rurveB5QZgkg34RIN6WRLwFDa ceQ2AxljC4TYy/ZXg//vXOdtOUsTPP0ZyEO6Kl1o/SyJLrqOXOJvBvSxGbC0KMv9gFLs Boa2gMLJsHo3jSBzFBRUZYGCvEFLG/oYwlruhPyBcvyHRIftPcafYDWjabIP9o9juXNa myldr+z5RHpK894hpyF3iPKAd451Ri8GRffO4zhNEZlhlcoDDxHsyby9gMf3RQ++rkwn z0Kw== X-Gm-Message-State: AOAM5311eHL59AJTFvvrKqrJqUnQ9gnPVRmV/j2BJIb2wrRFnAm0Svha bd8TarZkV9FaACJCZ1FLUTNefEAunyGtOQ3CTeA= X-Google-Smtp-Source: ABdhPJzVQURx+WlVXDzb2TNWO2ut54snxtTUOBAHiFKj+XkDCrEmb84958pER0gx8ns2PGBJ3Paha8iWjqDfDiq4bhM= X-Received: by 2002:a05:6e02:106c:: with SMTP id q12mr48515ilj.45.1591112734740; Tue, 02 Jun 2020 08:45:34 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dave Taht Date: Tue, 2 Jun 2020 08:45:23 -0700 Message-ID: To: Tianhe Cc: bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] Does employing a AQM on the home router also solve bufferbloat between home router and upstream devices? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2020 15:45:35 -0000 On Mon, Jun 1, 2020 at 7:49 PM Tianhe wrote: > > Hi there. I've read some materials from bufferbloat.net and other sites, = trying to understand the problem as best as I can. > > And I have a question when reading this: > > From https://www.bufferbloat.net/projects/bloat/wiki/What_can_I_do_about_= Bufferbloat/ , it says: > >> Once you fix it for your own network, it=E2=80=99ll stay fixed for all t= ime, and you won=E2=80=99t be subject to changing practices at your ISP or = other vendors. Well, we should be less optimistic about "all time", nowadays, as cable ISPs are adding oracles to dynamically change the amount of bandwidth you are configured as they overload individual segments. Evenroute is monitoring "sag" which seems to happen on many dsl backhauls. > > What does it mean? > > Does it mean that : > > if I employ a Smart Queue Management algorithms on my home router, it onl= y solves the bufferbloat problem between my home devices (desktop, laptop ,= cellphone) to my home router. But the buffers between my home router to ups= tream devices (my home router ---> modem ---> ISP routers/switches) , buff= ers between upstream devices, will still harm? So I only fix the bufferbloa= t problem on my own local network? > > or it mean that employing a Smart Queue Management algorithms on the home= router also solve bufferbloat between home router and upstream devices? > > Thanks in advance. > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat --=20 "For a successful technology, reality must take precedence over public relations, for Mother Nature cannot be fooled" - Richard Feynman dave@taht.net CTO, TekLibre, LLC Tel: 1-831-435-0729