Re: [DNSOP] Fwd: I-D Action: draft-song-atr-large-resp-00.txt

Paul Vixie <paul@redbarn.org> Tue, 12 September 2017 15:14 UTC

Return-Path: <paul@redbarn.org>
X-Original-To: dnsop@ietfa.amsl.com
Delivered-To: dnsop@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 57920133025 for <dnsop@ietfa.amsl.com>; Tue, 12 Sep 2017 08:14:33 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
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 0Fu4crRmGQsV for <dnsop@ietfa.amsl.com>; Tue, 12 Sep 2017 08:14:32 -0700 (PDT)
Received: from family.redbarn.org (family.redbarn.org [IPv6:2001:559:8000:cd::5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 81E3C132192 for <dnsop@ietf.org>; Tue, 12 Sep 2017 08:14:32 -0700 (PDT)
Received: from [192.168.16.67] (wsip-70-184-101-190.ph.ph.cox.net [70.184.101.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by family.redbarn.org (Postfix) with ESMTPSA id 3149B61FA2; Tue, 12 Sep 2017 15:14:32 +0000 (UTC)
Message-ID: <59B7F9D6.50900@redbarn.org>
Date: Tue, 12 Sep 2017 08:14:30 -0700
From: Paul Vixie <paul@redbarn.org>
User-Agent: Postbox 5.0.19 (Windows/20170908)
MIME-Version: 1.0
To: Stephane Bortzmeyer <bortzmeyer@nic.fr>
CC: Lanlan Pan <abbypan@gmail.com>, Davey Song <songlinjian@gmail.com>, dnsop <dnsop@ietf.org>
References: <150509601027.9852.16967877638602485585@ietfa.amsl.com> <CAAObRXJ6wJGCXkbKVkNmQCJ8NccBT63A8-9-LiRVZCFsDicchw@mail.gmail.com> <CANLjSvVpFkZiTv1k31DdOCvXByU=OkRwiryQ5O2iA9Wmgksuhw@mail.gmail.com> <20170912150659.vub6yf6e25nup775@nic.fr>
In-Reply-To: <20170912150659.vub6yf6e25nup775@nic.fr>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/I0kTVkFaLRD-csaqtuYV__6wiTs>
Subject: Re: [DNSOP] Fwd: I-D Action: draft-song-atr-large-resp-00.txt
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnsop>, <mailto:dnsop-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnsop/>
List-Post: <mailto:dnsop@ietf.org>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 12 Sep 2017 15:14:33 -0000


Stephane Bortzmeyer wrote:
> On Tue, Sep 12, 2017 at 09:50:37AM +0000,
>   Lanlan Pan<abbypan@gmail.com>  wrote
>   a message of 210 lines which said:
>
>> ATR make Authoritative Servers send normal big response packet
>> before they try to send TC response for large RRsets ?
>
> Yes, section 3. "it is suggested a timer to delay the second truncated
> response to around 10 millisecond which can be configured by local
> operation". (In the spirit of RFC 6555.)

noting, 10ms isn't enough. packet reordering due to multipath load 
balancing has been observed as high as 60ms due to "buffer bloat".

-- 
P Vixie