Re: [AVTCORE] Mail regarding draft-ietf-avtcore-leap-second
Kevin Gross <kevin.gross@avanw.com> Mon, 15 December 2014 16:34 UTC
Return-Path: <kevin.gross@avanw.com>
X-Original-To: avt@ietfa.amsl.com
Delivered-To: avt@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D4E751A802F for <avt@ietfa.amsl.com>; Mon, 15 Dec 2014 08:34:51 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.498
X-Spam-Level:
X-Spam-Status: No, score=-0.498 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, HTML_MESSAGE=0.001, SPF_NEUTRAL=0.779] autolearn=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 w25XVxLhcP9A for <avt@ietfa.amsl.com>; Mon, 15 Dec 2014 08:34:50 -0800 (PST)
Received: from resqmta-ch2-05v.sys.comcast.net (resqmta-ch2-05v.sys.comcast.net [IPv6:2001:558:fe21:29:69:252:207:37]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id ED2441A6FC4 for <avt@ietf.org>; Mon, 15 Dec 2014 08:34:49 -0800 (PST)
Received: from resomta-ch2-04v.sys.comcast.net ([69.252.207.100]) by resqmta-ch2-05v.sys.comcast.net with comcast id Tsal1p0022AWL2D01sapNi; Mon, 15 Dec 2014 16:34:49 +0000
Received: from mail-yh0-f42.google.com ([209.85.213.42]) by resomta-ch2-04v.sys.comcast.net with comcast id TsYp1p0080vSxq901sYpM1; Mon, 15 Dec 2014 16:32:49 +0000
Received: by mail-yh0-f42.google.com with SMTP id v1so5274670yhn.15 for <avt@ietf.org>; Mon, 15 Dec 2014 08:32:49 -0800 (PST)
MIME-Version: 1.0
X-Received: by 10.236.25.1 with SMTP id y1mr22298679yhy.62.1418661169155; Mon, 15 Dec 2014 08:32:49 -0800 (PST)
Received: by 10.170.229.84 with HTTP; Mon, 15 Dec 2014 08:32:49 -0800 (PST)
In-Reply-To: <CACFvNHUQ4UUA1FM-_pWY8AarjHU+Jb=QL0dNu7pPkzbjwPoGxw@mail.gmail.com>
References: <CACFvNHUYfvz+cR9nPtqUNz4ZVD-5N690QqNRHeCTq=DCcykwUQ@mail.gmail.com> <6CD85653-1D8F-4E46-8345-70242728B9CB@tno.nl> <CACFvNHUQ4UUA1FM-_pWY8AarjHU+Jb=QL0dNu7pPkzbjwPoGxw@mail.gmail.com>
Date: Mon, 15 Dec 2014 09:32:49 -0700
Message-ID: <CALw1_Q2mzc+1VCE4-=2Ys=x47Rtbw-grrzzm4bwQ_WU1fuyCyQ@mail.gmail.com>
From: Kevin Gross <kevin.gross@avanw.com>
To: Julius Friedman <juliusfriedman@gmail.com>
Content-Type: multipart/alternative; boundary="089e0115f8720b5bd9050a43cba2"
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20140121; t=1418661289; bh=MGJAOnimVLlUzXiMelJ36w9Yt1k2dLYjooDuTmtM0qU=; h=Received:Received:Received:MIME-Version:Received:Date:Message-ID: Subject:From:To:Content-Type; b=CQhMjjSJ9lNDd+X9s1lYMXAsLwNqkTUoA+QvNRcJqYxjm86V9S3/xMQWgLofg3UnY JFGK/U9RsQIYpSafVuzrbCzvtw0+jNHUyPziUO751Tw3Lx8E6/TPETu8xMt6GgWH1O IG+/47T5Kwk9SatxQSdGJEj+amBPfv8dkZepuMy3x3t2S5KTHMtobxnuwE1fdpDWDq c9GlJbi6I40gwiW6K/MU3cOSbFNGjofDQrQRkcQCjJR6jSb1gK+0kVe3SXECiVDXJ3 K8MB5KzFUkWTe9zZSDw+uqUUqtN5+SD0fPfGrXRFDntrdZg+rRbXLb5yJ7Anvya0Oy KLPmPtrKOxa0A==
Archived-At: http://mailarchive.ietf.org/arch/msg/avt/sOJr-P_6j8FAfkikedYq5kD93IU
Cc: "avt@ietf.org" <avt@ietf.org>
Subject: Re: [AVTCORE] Mail regarding draft-ietf-avtcore-leap-second
X-BeenThere: avt@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Audio/Video Transport Core Maintenance <avt.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/avt>, <mailto:avt-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/avt/>
List-Post: <mailto:avt@ietf.org>
List-Help: <mailto:avt-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/avt>, <mailto:avt-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 15 Dec 2014 16:34:52 -0000
This draft contains only recommendations, not requirements. You're welcome to treat it as informational. Many have reported to me that it is very helpful for understanding leap-second issues. RFC 7273 can be used in conjunction with this draft to determine whether timestamps in SRs contain leap-seconds. I'm not sure what you're referring to when you say, "Small system dependent implementation of leap year." Kevin Gross - AVA Networks On Mon, Dec 15, 2014 at 8:11 AM, Julius Friedman <juliusfriedman@gmail.com> wrote: > > Granted then 3550 is updated in several standards and not necessarily > obsoleted, maybe thats the problem; whether or not assumptions matter the > details are clearly stated. > > This draft doesn't specifically say how to check or correct this issue > which is should. > > What if one party is not in leap year time and another is? > > Furthermore the senders report is giving you a time to indicate the > senders time for a sample. > > If this information is deemed so important that it makes it to standard > then I don't see why other such issues as the octet count are not also > addressed. > > Two years or not I would assume better later than never. > > Sincerely, > Julius Richard Friedman > On Dec 15, 2014 3:20 AM, "Brandenburg, R. (Ray) van" < > ray.vanbrandenburg@tno.nl> wrote: > >> Hi Julius, >> >> > This rfc also updated 3550 which is obsolete and should update 3551 >> and only reference 3550 when required. >> >> Where do you get the idea that 3550 is obsoleted? >> >> > We assume that the small system dependent implementation of leap year >> needs to be addressed at the rfc level. >> >> With ‘we’, I assume you mean ‘you’, since I haven’t seen your opinion >> on the mailing list in the roughly 2 years since this draft was first >> introduced and it becoming an RFC. >> >> Ray >> >> >> From: Julius Friedman <juliusfriedman@gmail.com> >> Date: Sunday 14 December 2014 18:56 >> To: "draft-ietf-avtcore-leap-second@tools.ietf.org" < >> draft-ietf-avtcore-leap-second@tools.ietf.org> >> Subject: Mail regarding draft-ietf-avtcore-leap-second >> Resent-To: Kevin Gross <kevin.gross@avanw.com>, Ray van Brandenburg < >> ray.vanbrandenburg@tno.nl> >> >> This is another priceless internet draft. >> >> We assume that the small system dependent implementation of leap year >> needs to be addressed at the rfc level. >> >> We do so without providing anyway to test your implementation to the >> given criteria or test the system to determine if any corrections are >> actually required. >> >> This should at the best case be informational. >> >> It is a larger problem to calculate the payload rate without csrc, >> extension and padding than it would be to account for a leap year, this is >> especially true if the receiver synchronized to the sender then the time >> difference becomes 0 anyway. >> >> This rfc also updated 3550 which is obsolete and should update 3551 and >> only reference 3550 when required. >> >> Sincerely, >> Julius Richard Friedman >> >> >> >> This message may contain information that is not intended for you. If you >> are not the addressee or if this message was sent to you by mistake, you >> are requested to inform the sender and delete the message. TNO accepts no >> liability for the content of this e-mail, for the manner in which you use >> it and for damage of any kind resulting from the risks inherent to the >> electronic transmission of messages. >> >> > _______________________________________________ > Audio/Video Transport Core Maintenance > avt@ietf.org > https://www.ietf.org/mailman/listinfo/avt > >
- Re: [AVTCORE] Mail regarding draft-ietf-avtcore-l… Julius Friedman
- Re: [AVTCORE] Mail regarding draft-ietf-avtcore-l… Kevin Gross
- Re: [AVTCORE] Mail regarding draft-ietf-avtcore-l… Kevin Gross
- Re: [AVTCORE] Mail regarding draft-ietf-avtcore-l… Julius Friedman