From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-x235.google.com (mail-qt0-x235.google.com [IPv6:2607:f8b0:400d:c0d::235]) (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 20AAE3B2A4 for ; Wed, 9 May 2018 05:36:35 -0400 (EDT) Received: by mail-qt0-x235.google.com with SMTP id m5-v6so44751906qti.1 for ; Wed, 09 May 2018 02:36:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=cKezviRjqKmNWSdLzPt/vi3fyMAWo9BxRFhOivlGeOc=; b=f49XVmndVVc3pB+w+Z7Uwq9Jw2xbuo1gqclvZC4NWPVzTiit0viAtnxZBhkqDQ0Mez 6q6mwRYDT281DC1asy4f4lY3QwaNku+SzD38y027C/Sx1tvnAhZpQoN0BzP1J2J3+MqG JzMYBQudNmqq4rIqXBKmiHIaPT+vLhKtDhDCOosvLc+vo5rG7SCS1+HOqfpKslDuIF+K QAGfl6pXZzHrvbHnmTOQ3JjKwgd0bHG2T7fHTgMxVTslWXiRsW7RAXwMRjiIHC6B7DcF ikX4OerKfj+9x5UqvHv09dYavHJTiAJ9fIayXww/9qK8duf2ZbnQ1G7Wpih+id8TIMzb Vrrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=cKezviRjqKmNWSdLzPt/vi3fyMAWo9BxRFhOivlGeOc=; b=sDa/oPK5MERK3bFzbNqWnmWH6ib3bpnqbnad7e/kYJu2WCHxwWZDUkew0GU7MOoQMx NMKwSNXFblK5qh9LeZDY5pPCzl6sWKXrpJGop6jRZp0HpA56orEBX1w3ygE3+aKJg6n8 W9HsEmj/SUghzL0XAaZL4DrGe+nuCcNJwHKg6+tgB7JdwMiiT3gcguvJbsNj+Y5GeQb0 GsGyUJGehW3JiUzHhlYWJtfGiStZwFAfZ2zcZekVy5XWJS56C45WxpQUd+MT0DW+Npv1 iZmBuakpwloxsnic6HvhgiYs5s0tu4pP+2mSya7iJZ9KJHe//Q2FfMReZTvJAvDF4P8Y xN3Q== X-Gm-Message-State: ALKqPwcRH0nOkTjWAQyi0u5EMCUDW5YzA+XZEZys+hkUdqtqFt9KbPaz cWX7JjJn2m+Noh7z8Jl4j/zXuMDrvRMmqgye6OIDLg== X-Google-Smtp-Source: AB8JxZoWa0GOe6/pW+EJU7zNiCpN5TJq+9ZftB8fnAj1K7tax+x+7vX1y+Fmizftq/+3TO0CZk2J32lyrEcIA01QhSI= X-Received: by 2002:a0c:b29e:: with SMTP id r30-v6mr19384437qve.17.1525858594231; Wed, 09 May 2018 02:36:34 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.243.147 with HTTP; Wed, 9 May 2018 02:36:33 -0700 (PDT) From: Dave Taht Date: Wed, 9 May 2018 02:36:33 -0700 Message-ID: To: bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Bloat] ericsson vAQM on LTE 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, 09 May 2018 09:36:35 -0000 It takes a while to get to the point, but I am encouraged. Maybe we don't have to rebuild/reverse enginer a few 5g implementations from scratch. https://www.ericsson.com/assets/local/publications/ericsson-technology-revi= ew/docs/2018/virtual-aqm-for-mobile-networks.pdf "Figure 3 illustrates vAQM in two scenarios: Packet Data Network Gateway (PDN GW) of Evolved Packet Core (EPC) in 4G and in the User Plane Function (UPF) of 5G core. In 5G, vAQM will be deployed as a network function by the UPF of the 5G core. It will be configured per PDU session, per SDF (Service Data Flow)/QoS flow =E2=80=93 that is, the guaranteed bitrate (GBR) or nonGBR QoS flow. The non-GBR QoS flows of one PDU session will be aggregated and handled by one vAQM, whereas each GBR QoS flow will be allocated a vAQM with a dedicated virtual buffer. The Session Management Function (SMF) will configure vAQM and its virtual buffers for the QoS flows during the PDU session establishment/ modification phase. Configuration will occur when SMF provides the UPF with a QoS Enforcement Rule that contains information related to QoS enforcement of traffic including an SDF template (in other words, packet filter sets), the QoS-related information including GBR and maximum bitrate, and the corresponding packet marking information =E2=80=93 in other words, the QoS Flow Identifier (QFI)= , the transport-level-packet-marking value. vAQM is self-learning, making it fully automated without any parametrization." --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619