IETF Logo Mail Archive

Re: [rmcat] WG last call draft-ietf-rmcat-eval-test-06

Zaheduzzaman Sarker <zaheduzzaman.sarker@ericsson.com> Mon, 16 July 2018 21:50 UTC

Return-Path: <zaheduzzaman.sarker@ericsson.com>
X-Original-To: rmcat@ietfa.amsl.com
Delivered-To: rmcat@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3AF00131224 for <rmcat@ietfa.amsl.com>; Mon, 16 Jul 2018 14:50:10 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.309
X-Spam-Level:
X-Spam-Status: No, score=-4.309 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ericsson.com header.b=a3ZXCBWH; dkim=pass (1024-bit key) header.d=ericsson.com header.b=Cm1zOrol
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cLeWR1Ee8mxG for <rmcat@ietfa.amsl.com>; Mon, 16 Jul 2018 14:50:07 -0700 (PDT)
Received: from sesbmg23.ericsson.net (sesbmg23.ericsson.net [193.180.251.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 66568130DF2 for <rmcat@ietf.org>; Mon, 16 Jul 2018 14:50:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; d=ericsson.com; s=mailgw201801; c=relaxed/simple; q=dns/txt; i=@ericsson.com; t=1531777804; h=From:Sender:Reply-To:Subject:Date:Message-ID:To:CC:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=tEgYAIrjW/6OFflhhF12e3crfTVByBIRaayIQx8Q8J8=; b=a3ZXCBWHTYhYMNE5YItHvGdYxJWAKXg4m1T5KC49DkOyHrgDpLPElCpJdzWVNCXS RFwtoSA/7/eg1S7S069j+dSbY4P1goH6BPjEzoQREAqZ8Tcem4SUERb6Qxup6QdR KQGEgRwxmU6RnL8+fjXYanka0T3DouiTuCxD1zioSJY=;
X-AuditID: c1b4fb25-202c69c000006310-fb-5b4d130cd866
Received: from ESESBMB501.ericsson.se (Unknown_Domain [153.88.183.114]) by sesbmg23.ericsson.net (Symantec Mail Security) with SMTP id F5.60.25360.C031D4B5; Mon, 16 Jul 2018 23:50:04 +0200 (CEST)
Received: from ESESSMR506.ericsson.se (153.88.183.128) by ESESBMB501.ericsson.se (153.88.183.168) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Mon, 16 Jul 2018 23:49:44 +0200
Received: from ESESSMB502.ericsson.se (153.88.183.163) by ESESSMR506.ericsson.se (153.88.183.128) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Mon, 16 Jul 2018 23:49:43 +0200
Received: from EUR04-DB3-obe.outbound.protection.outlook.com (153.88.183.157) by ESESSMB502.ericsson.se (153.88.183.163) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3 via Frontend Transport; Mon, 16 Jul 2018 23:49:44 +0200
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ericsson.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=tEgYAIrjW/6OFflhhF12e3crfTVByBIRaayIQx8Q8J8=; b=Cm1zOrolhsc8Cab1CsS+cq5WHqKHrScR9OGA7HLJObvBKJ1n1WLzWh9lpK4a5kCTUHNqSH6a1O48dSyFMllgcWx2T3do53b1wkDVV+GOTDKNX7Sr62ZRaVKCdterBBqyO5pQbwsnXbUpDJstopHkD3JYJ3YV3asGEbcsvdSE2hc=
Received: from VI1PR0701MB2255.eurprd07.prod.outlook.com (10.169.137.146) by VI1PR0701MB1853.eurprd07.prod.outlook.com (10.167.197.13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.973.13; Mon, 16 Jul 2018 21:49:42 +0000
Received: from VI1PR0701MB2255.eurprd07.prod.outlook.com ([fe80::6455:da34:212d:f541]) by VI1PR0701MB2255.eurprd07.prod.outlook.com ([fe80::6455:da34:212d:f541%5]) with mapi id 15.20.0973.013; Mon, 16 Jul 2018 21:49:42 +0000
From: Zaheduzzaman Sarker <zaheduzzaman.sarker@ericsson.com>
To: Colin Perkins <csp@csperkins.org>, "rmcat@ietf.org WG" <rmcat@ietf.org>
CC: "draft-ietf-rmcat-eval-test@ietf.org" <draft-ietf-rmcat-eval-test@ietf.org>
Thread-Topic: [rmcat] WG last call draft-ietf-rmcat-eval-test-06
Thread-Index: AQHUCYnjl4ptkMIH2EC7VJ1zQ/M8MaSQ02AAgAF0SoA=
Date: Mon, 16 Jul 2018 21:49:42 +0000
Message-ID: <506B7742-A2F1-496D-BDEF-A019102642F2@ericsson.com>
References: <B298CB34-37DB-45D2-A4F6-D52CA1E8B9BA@csperkins.org> <F819B214-67AE-4E8B-AF05-A81290D8EB5F@csperkins.org>
In-Reply-To: <F819B214-67AE-4E8B-AF05-A81290D8EB5F@csperkins.org>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/10.e.1.180613
authentication-results: spf=none (sender IP is ) smtp.mailfrom=zaheduzzaman.sarker@ericsson.com;
x-originating-ip: [2001:67c:1232:144:21c5:b790:9517:efa5]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1; VI1PR0701MB1853; 6:YDvueaufYzqqLu5JZglGM7p9cYJ/AVSVFIsGHf9G1aExxiUGZ9OIRWRB4wgBcsgQKyQHq9RZ91NxHKAosViBCSg2g7XXKDlS/ksmovZWyDtzc8LU8dCFJqyRwXzX5tUZHGXT61OMlvpsohMLKm3wUeLgIMIZEIVdsqSBoXafaBHeref+bInil6ovak1TGTjAFiHEe7ckgknWnkNl3V+0hg2NaXX+VtNox0eXG9OEgVr8RIbMUmU0kVp3Tp9PYo827KT21S6+eM000jdnvIjXyyxARtkkSaYV7RmPKDlBZPdXU3NIX74EtPn5bNOQJd/HH3laDpfyFu107od9Oqw1g24dKu/cb9jdv8vxu2tuNmELFazQcsS91EY6jZ7Nnf2RPErbc9ZFRaYX+YeJkXcV8hWQWN1iOfvwCUm8LNrEPxwbbeo8K4X2MgCWkZmXIt7pU7Isd8I5ENxQ6EwCastRtA==; 5:Gj7RbPQx0USpgBACTHdncBU7D6Vkrq87VM3xZUAjOqSlnbvEClbs/qAROeZBLCNRxCywibopam7QfFV0x9DnI9zRm+YJxZv3bRKLsYXkS+kzPN4tJ7mMFSqZ4crzP7l3AEYrvGwSLyEg9iZ/ZctID5Z6VOJ0hmnUikEFIbmPKyw=; 7:vyPc1EK6IqVUTU9y4GAtABHrBh09h8UV5C0TNRUgub+c2Rkc5IYjAOHRlsfZkbjXU4snqy8qwOsIs0dzWSarFgqGinWiDaChL9Q99fs436YBdPf/iwHyLlh0Thgh1iC26IcfExU3UTmq1lTO5kXcWBiZNdrqyLQ+HNG4TaRkrAVigflpH5shrHkGPlzz2oRYOYDBnaun9iPfLqrQaO92bwoBbwHIb7wblYF6vsy34OhXiZT2GIPyuCNv0r9YRX9s
x-ms-exchange-antispam-srfa-diagnostics: SOS;
x-ms-office365-filtering-correlation-id: 5d1121d8-22c7-4a63-8eaf-08d5eb6609da
x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652040)(8989117)(5600053)(711020)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(2017052603328)(7153060)(7193020); SRVR:VI1PR0701MB1853;
x-ms-traffictypediagnostic: VI1PR0701MB1853:
x-microsoft-antispam-prvs: <VI1PR0701MB185307F6C96442370904015C9F5D0@VI1PR0701MB1853.eurprd07.prod.outlook.com>
x-exchange-antispam-report-test: UriScan:(28532068793085)(192374486261705)(21748063052155);
x-ms-exchange-senderadcheck: 1
x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3231311)(944501410)(52105095)(10201501046)(93006095)(93001095)(3002001)(149027)(150027)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123560045)(20161123562045)(20161123564045)(6072148)(201708071742011)(7699016); SRVR:VI1PR0701MB1853; BCL:0; PCL:0; RULEID:; SRVR:VI1PR0701MB1853;
x-forefront-prvs: 073515755F
x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(346002)(136003)(39860400002)(396003)(366004)(376002)(189003)(199004)(97736004)(44832011)(6512007)(486006)(236005)(36756003)(82746002)(54896002)(14454004)(33656002)(229853002)(6486002)(446003)(76176011)(86362001)(11346002)(6306002)(4326008)(53546011)(476003)(6506007)(186003)(6246003)(6436002)(102836004)(2616005)(110136005)(316002)(81156014)(81166006)(25786009)(6116002)(2906002)(58126008)(8676002)(14444005)(256004)(7736002)(5250100002)(106356001)(53936002)(46003)(478600001)(5660300001)(8936002)(2900100001)(105586002)(99286004)(68736007)(83716003); DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR0701MB1853; H:VI1PR0701MB2255.eurprd07.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1;
received-spf: None (protection.outlook.com: ericsson.com does not designate permitted sender hosts)
x-microsoft-antispam-message-info: AKF0MFhVxGHcNb4HMll4ys65LBks9qjzZPXMeCqOrQivUqXFNXQ5VkRf3k3aX3vdpavrSn2DXbqqD4CXFQngUHEj19MIUAbO9eUwLeizD9h5iQvTNVRJHoMN9/lnrb+hvWFOXmAJTi9HWniwUBG0Ckq5268dXsu/hb9xJ3ijXYPnl852NgKDSelejGFFvAI/WBscAantf6GNwb1vClL6pjR8+J5BZI+jZb6sR4X4gzX0Za67XUrlWWmXfQdAIM8RrwH5Dxwasavq8W5h+ungZYo0iPHF1a7ZrJOLawEagtG37SccuiT2Zk4ldKbc1SwULnsAbG0fQQbD1YdgOwJ6byDc1EP7WDWOw2LxDsnyMwQ=
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: multipart/alternative; boundary="_000_506B7742A2F1496DBDEFA019102642F2ericssoncom_"
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 5d1121d8-22c7-4a63-8eaf-08d5eb6609da
X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jul 2018 21:49:42.6052 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 92e84ceb-fbfd-47ab-be52-080c6b87953f
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0701MB1853
X-OriginatorOrg: ericsson.com
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrBKsWRmVeSWpSXmKPExsUyM2J7kS6PsG+0wer/FhbLX55gtJh4/yy7 xeqbH9gcmD2m3b/P5rFkyU+mAKYoLpuU1JzMstQifbsEroy+Y02MBQ21Fd+P/WFpYDxf2cXI ySEhYCKx4lgPexcjF4eQwFFGibmn2pggnG+MEpdu3mCDc+at6GOFcJYwSWx8tAOsh0VgArPE y+eXoAZMZ5K433ydBcJ5xijRu+sMYxcjBwebgI3E48V+IBtFBLwlXtx/xAwSZhYIlJj1qQQk LCxgL/Frx1pWiBIHiS2dc9khbCuJfRtfgU1hEVCVmN/gBBLmBSq/2bOCGcQWEiiXuLDzMguI zSngKHHn2W+wMYwCYhLfT61hArGZBcQlbj2ZzwTxs4DEkj3nmSFsUYmXj/+B1YsK6Els29TI BtGbLDH1aysbRI2lxIl3r9khbFmJS/O7GUE+lBA4wC7R9a2XESKhK/Fh6lSoob4SL9a1sUAU XWKUaNm5kBUioSMx9RzEMxIC+RJn/wVMYDSaheQ+CDtZ4urGZcyzwP4UlDg58wnLLHBoaUqs 36UPUaIoMaX7ITuErSHROmculO0hsfjqVCZkNQsYOVYxihanFiflphsZ66UWZSYXF+fn6eWl lmxiBKang1t+q+5gvPzG8RCjAAejEg/vSR7faCHWxLLiytxDjBIczEoivFOqfaKFeFMSK6tS i/Lji0pzUosPMUpzsCiJ8z403xwlJJCeWJKanZpakFoEk2Xi4JRqYOQTdLGz2cTFfeDvZ8/A I7eedpXoH2iqX820k3dt44c9x55USWy9rXPu5rXAtaXLdj2z/7jWa+rjnfxfzLd1qUgz1Imv tLt15V6gwlz1s/0+1R6rJR0uetqHBlyNvxRg9H7jjuubTab/WDB5YdF5NmuF71WiXWJq2yrk 3K83nFvaJ/50Zt5foztKLMUZiYZazEXFiQC3c/NISwMAAA==
Archived-At: <https://mailarchive.ietf.org/arch/msg/rmcat/pwRiNnFzIMdDuz1gjwilnjdi7Hw>
Subject: Re: [rmcat] WG last call draft-ietf-rmcat-eval-test-06
X-BeenThere: rmcat@ietf.org
X-Mailman-Version: 2.1.27
Precedence: list
List-Id: "RTP Media Congestion Avoidance Techniques \(RMCAT\) Working Group discussion list." <rmcat.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rmcat>, <mailto:rmcat-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/rmcat/>
List-Post: <mailto:rmcat@ietf.org>
List-Help: <mailto:rmcat-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rmcat>, <mailto:rmcat-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Jul 2018 21:50:10 -0000

Thanks Colin for your review.

Please see inline below.

BR

Zahed

On 2018-07-15, 15:37, "Colin Perkins" <csp@csperkins.org<mailto:csp@csperkins.org>> wrote:


Some quick comments on this draft:

·         Introduction uses RFC 2119 terms, but the draft doesn’t cite RFC 2119.
Will add.
·         Section 5.1, 3rd bullet: rather thnan “the application will attempt to” should this be “when the application tries to”?
Ok.
·         Section 5.1: the description of oscillations in “Expected Behaviour” suggests that they will occur, rather than they might occur if there are problems with the congestion control. Maybe change “The oscillations occur when” to “Such oscillations might occur if”?
Makes sense to me.
·         Section 5.1: the description of what causes oscillation is also missing some mention of them being uncontrolled/excessive rate changes; as written, it could apply to any system that probes the rate, backs off, and then increases rate again later.
Not sure I understand your points here. Are you saying that the oscillation can be caused by some other events like competing flow (non- congestion controlled or congestion controlled)? That is possible. However, in that case it will be still be a case of overshooting the bitrate as the estimated link capacity will vary and the congestion control algorithm if not tracking that correctly will overshoot.
·         Section 5.7: the introductory remarks talk about “up to 4” TCP flows, but the Competing Traffic part uses 10 TCP flows.
Good catch, thanks.
·         Security considerations: maybe say that the security considerations of eval-criteria and the relevant congestion control algorithms apply?
Makes complete sense to me. Thanks again.

v2.23.0 | Report a Bug | By Email