From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) (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 274283B2A4 for ; Wed, 12 Jan 2022 18:43:03 -0500 (EST) Received: by mail-ed1-x52f.google.com with SMTP id i5so16274881edf.9 for ; Wed, 12 Jan 2022 15:43:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=PJI96nUp62ImaLCJIDYzRljhZXKPTO9ZwT0acLKHeYg=; b=N9H/9uR8JQeT21pSZ3+vvsiWskF6fSO26Tro4LCzfITgFjuyCPehScoMiIqt34yc4t 8gbKt0EmQXypHh56tr2lGWXV6baQGOREXHHo6JmhTrHZXh3ixriT+L9JiHpjmWluEfDK 5akSY4KVMbULc4YBSvHOlxy6bD7kCKZWFovl3oVPyORcSQ7KyQ85xfbsdKHFcaPEKqDg wEfecDwfI0mtis2KE8N5hZyiMSFXdh5EupRG5hylKMeKDdh4XanXyg+7jmCbPRzSa1Gq 4ahXLS2RzuSeU1M+7GzCOlgcc6GvrK/BsLznuvfLGeff96yyIAmSF1/LxFM8loAC6xd5 /AZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=PJI96nUp62ImaLCJIDYzRljhZXKPTO9ZwT0acLKHeYg=; b=I2/h2ZYjQmujmNswEaqyaCEfk53Cs+70YdvBJowwQ6x09BlCFNbFhkJU1MQuCGkhGQ 3UXeVisV3E/4t7JThWnDEQMmZ/6KnGzhPgRoGR2WjfqHe+6b3WWSUye4AWG/5mqQKbHt a11w1eLifyOUQLJjCeRvlDSlZdLnRjyo7rH9xF3lfHhqOr5H00jL1PZciqWMJH34ZvOr tA+HKQXlxs8z4gNDRHKKpmJIPMRw0G33HPVSOZNmajjabN+6Mo4Q9TwLC69QMLQEcWGj lyj1xmCnC3A6ETrltlTac0cnwzyIQ2eS22rJ1An0bkFkEqpTMi7HxOpNgJfaSoddClLw VrGg== X-Gm-Message-State: AOAM532yiNjXJcsaxTxZ7NgxlUME40rhHK2rc4CVzPDUbAG2n4SM2bC1 sy7iGnQ5/9uiKVfkzNMWFsoGfCmEQilA9uE0OvEkRG4Hgmg= X-Google-Smtp-Source: ABdhPJzTdqeLWzRE5zB9TyxuvyTNqMXJgiqEbleqhfQ4DL0G+FLeOpp6WNuei3hUCuvz0yoewMQqBsMK6xJkz52e2Iw= X-Received: by 2002:a17:907:97ca:: with SMTP id js10mr1482346ejc.645.1642030981855; Wed, 12 Jan 2022 15:43:01 -0800 (PST) MIME-Version: 1.0 From: Dave Taht Date: Wed, 12 Jan 2022 15:42:48 -0800 Message-ID: To: bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Bloat] ONTs and ITU - T G.988 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: Wed, 12 Jan 2022 23:43:03 -0000 Up until this point I haven't cared all that much about fiber, as most of my observations were that it had "reasonable" buffering and all I could hold in my head was the 802.11 standards. Since cablemodems are well on their way to being fixed, wifi is looking good, and I recently came across an ONT that was actually underbuffered, my holiday reading consisted of pounding through a ton of fiber specs like this one: https://www.itu.int/rec/dologin_pub.asp?lang=3De&id=3DT-REC-G.988-201711-I!= !PDF-E&type=3Ditems There's a lot of promising info in this spec starting from page 104. My 1st question is - are there any ONTs that actually do do pause frames? Or providers that configure for them? My second is - what is a cheap way to setup a lab to emulate a good, common, version of gpon e2e? Third - what OS do these things run? Who makes a "good" one? --=20 I tried to build a better future, a few times: https://wayforward.archive.org/?site=3Dhttps%3A%2F%2Fwww.icei.org Dave T=C3=A4ht CEO, TekLibre, LLC