IETF Logo Mail Archive

Re: [Detnet] Redundant streams

"Andrew G. Malis" <agmalis@gmail.com> Tue, 29 May 2018 21:52 UTC

Return-Path: <agmalis@gmail.com>
X-Original-To: detnet@ietfa.amsl.com
Delivered-To: detnet@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8DF3B12EBA7 for <detnet@ietfa.amsl.com>; Tue, 29 May 2018 14:52:00 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.698
X-Spam-Level:
X-Spam-Status: No, score=-2.698 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 EBu3_rskcf5r for <detnet@ietfa.amsl.com>; Tue, 29 May 2018 14:51:58 -0700 (PDT)
Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com [IPv6:2607:f8b0:4003:c06::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0148F127419 for <detnet@ietf.org>; Tue, 29 May 2018 14:51:57 -0700 (PDT)
Received: by mail-oi0-x234.google.com with SMTP id k5-v6so14505503oiw.0 for <detnet@ietf.org>; Tue, 29 May 2018 14:51:57 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=jMREKzjHL1K1T0BMhiSMFs+jVuSaA62b+hU8RWXs9TY=; b=s/e0/jJa99n8rq0augNh/RI2Tsu7DitttwpL5ETX6oEIEEHBxs02qPMF2H3USZQYi5 wd2egrHLs24sAuh8mcxKSFHn6fVZG7HIzH5P/5XZlyfF7vuHa3jn01umoR9YXCw1caCm X0vYcXs2j7ImeVLPzTsrzgjlEWl7ZmWN8fqxorGs9zSHaGLVsizJdfUKt/Z5NqcrMG+W hH+N/zOpxn0qdkatsRhE3dJoToTnbXruWLoR4XqGicUUY9O3TluEVkzEF5o6Gfa3MynC mPfYFcSo/K15xdbyUn7vKnSQE3fSpnjj0Tznz403+5mV4XcluAIWqDgp65yCHQVgTjds IB8A==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=jMREKzjHL1K1T0BMhiSMFs+jVuSaA62b+hU8RWXs9TY=; b=kQrNn9P5sjGiAFy1d77a/ilZ0zWKaOo7zXzHl4NpLzqxcfa+tOAThxUBEh1b3OCZCf 0uYQAIxUUnyNX047Ber5dJDs+xnX0Q5jIX9wkQOiHe6vIjrOwJp79RtCIg4Jlb6gOA8K GqFBPQykHjso3FSS3nfeVlOXsAXON68DOnz6MallHX3ZbMKoxIurT8I+hoGRlPZoM75c Lvq3emQuJw6ql1T+VdAYfLZTYDaBLxKlWL8lNzYgLXZsBzk7+/oG2LtceFsbMN/iEFle o0nBDrY15zZNl2usuaGv+v6sp1YvVi0RP98OMywDYtjhcbTVv6wmsas4PGGRAiDCOiX/ S43w==
X-Gm-Message-State: ALKqPwf1I84BYYsJuNWjOFJQgYoeojU8j0UgIQZrtBpU5Khfx4hk7wfF o+DXPLZiG1UHp9/LLdFLappRUAOgW236VLz4Dyw=
X-Google-Smtp-Source: ADUXVKI4lwVeeyr9oTyCrcDNKaI22Y6/9fRLYwbesBPJwg9qd4JKtgZ516h5ONzRmMQ/SIFYnh+0aV8UwwcZuXSVQBg=
X-Received: by 2002:aca:f404:: with SMTP id s4-v6mr115625oih.204.1527630717250; Tue, 29 May 2018 14:51:57 -0700 (PDT)
MIME-Version: 1.0
Received: by 2002:a9d:1f27:0:0:0:0:0 with HTTP; Tue, 29 May 2018 14:51:36 -0700 (PDT)
In-Reply-To: <d9581f64-8a99-fd04-2074-4375d02bea7b@ninetiles.com>
References: <d5518897-b0a0-5a46-36ac-e271efe0ec13@ninetiles.com> <C3855D43D6701846AD1151A536E7A0583CE1FA71@SJCEML701-CHM.china.huawei.com> <d9581f64-8a99-fd04-2074-4375d02bea7b@ninetiles.com>
From: "Andrew G. Malis" <agmalis@gmail.com>
Date: Tue, 29 May 2018 17:51:36 -0400
Message-ID: <CAA=duU3BRxBnThpisSoTYGqZCxbEpHY+eW=tuDBb-VE0E3twGA@mail.gmail.com>
To: John Grant <j@ninetiles.com>
Cc: DetNet WG <detnet@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000003fefef056d5f3e9e"
Archived-At: <https://mailarchive.ietf.org/arch/msg/detnet/aRjDnLQaKzUyR1deXKUyJpOGMFQ>
Subject: Re: [Detnet] Redundant streams
X-BeenThere: detnet@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Discussions on Deterministic Networking BoF and Proposed WG <detnet.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/detnet>, <mailto:detnet-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/detnet/>
List-Post: <mailto:detnet@ietf.org>
List-Help: <mailto:detnet-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/detnet>, <mailto:detnet-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 29 May 2018 21:52:01 -0000

It’s not the standard itself, but I found a pretty nice application note
that describes it:

https://www.dektec.com/products/PCIe/DTA-2162/downloads/DT-AN-IP-3%20SMPTE%202022-7.pdf

You can also purchase it from the IEEE for $80.00 (or use your IEEE Explore
login if you have one) at https://ieeexplore.ieee.org/document/7291851/ .

Cheers,
Andy


On Tue, May 29, 2018 at 1:33 PM, John Grant <j@ninetiles.com> wrote:

> On 28/05/2018 19:18, Hesham ElBakoury wrote:
>
>> Ho John,
>>
>> Can you please send me SMPTE ST2022-7 spec.
>>
> I've now seen a copy of it (but I'm not allowed to circulate it, sorry).
>
> It only applies to RTP streams; there are no additional headers, and
> elimination is on the basis of the RTP sequence number and, if that wraps
> too often, the RTP header timestamp.
>
> It is, I believe, quite widely used for professional video over IP.
>
>
> --
> John Grant
> Nine Tiles, Cambridge, England
> +44 1223 862599 and +44 1223 511455
> http://www.ninetiles.com
>
> _______________________________________________
> detnet mailing list
> detnet@ietf.org
> https://www.ietf.org/mailman/listinfo/detnet
>

v2.23.0 | Report a Bug | By Email