From nobody Wed Jul 13 00:19:03 2022 Return-Path: X-Original-To: dispatch@ietfa.amsl.com Delivered-To: dispatch@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 903B1C1527AF for ; Wed, 13 Jul 2022 00:19:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.004 X-Spam-Level: X-Spam-Status: No, score=-2.004 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=0.1, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=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 ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ssWwFZaGNgIK for ; Wed, 13 Jul 2022 00:19:02 -0700 (PDT) Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 05479C14F613 for ; Wed, 13 Jul 2022 00:19:01 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id o7so17619730lfq.9 for ; Wed, 13 Jul 2022 00:19:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=wVHSZ3IkDEarrvjXD74L9De9Ys2SEMVrwYtHMMlLkQc=; b=YZDr/3S3v+bmIdgLoUYezi1to7e1cMXir719lMwEkqgyg4BmFY7D2vcE3Ons/FRdgt MGPyC84LBDqSZne6f4FXblFvdlSYV/jLsEbtN91dvJx99AVnDvYO29QgJ/1CBr+1L8Qt gyaMWPArg5dYlUBnRASKLnRJ+NBChRivuGeqE3RRaU7ksTYySYveDmmTDXDspYWi4+IH Pw2c0exNz98LkO/bsNqPs/gpRliBN7YspMhnDbxySfbmWvX9o/HomCROM1Cme6aqZYJZ 16b3SNPKhTUti2+83tGDwtFPusryOT0Sp4sJsQr6+eT1Wv2zMcdDtCF+4G5pgXcInkRW H+7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=wVHSZ3IkDEarrvjXD74L9De9Ys2SEMVrwYtHMMlLkQc=; b=oOIUvd5Sn3Wm/3W/ODyTJgsyTLdcKtqRWTr7zEsXTHbnlJjaQNGxYrBWdURGywXqa0 y6bLZ3fNtcWL+yKzBSWU7TiMeU9eu1KDTlb7jETrZCUjsF+miJcpX5h+i8dmJysLF89A UJt8HjLMCjbLj0egoIlgQjUjX2NCjjyD1zVyySHheU/pUCGhxGm/fIZLYFCeVoOChKqL Tm52l5tp09gby6W+12ANGywyyRbUJi7QZ3jDjVUrbkGoCIDoepAIfkq73XGKPE4inKUG fRDL5WlpL2j3fNrojReK/gIjAa9CntSOLRUuzd4KEGxMhA7iZKgcmmUtC/pnKMvzyGtc a3ug== X-Gm-Message-State: AJIora/e9gTttkqhrsDx8uWs0FNZc+8kKkow0hz/SCoLigv/uk6EQf64 Ao/tDSgb0PJCM5GVGAHM2HNhH99D9d1BHinDgF4= X-Google-Smtp-Source: AGRyM1tiflYesGefX6vgZA2cQVUUCjnxxa9u9J21IT4Tmr/PU0LrJm5XKXrPLDqpeLEI0u4NGkg7RVylLxK+g3HSU+A= X-Received: by 2002:a05:6512:3403:b0:481:60ae:7ebc with SMTP id i3-20020a056512340300b0048160ae7ebcmr1177396lfr.358.1657696739757; Wed, 13 Jul 2022 00:18:59 -0700 (PDT) MIME-Version: 1.0 References: <00C16072-6D43-44AB-AEFC-3A586DA28804@contoso.com> In-Reply-To: <00C16072-6D43-44AB-AEFC-3A586DA28804@contoso.com> From: Ron Even Date: Wed, 13 Jul 2022 10:18:45 +0300 Message-ID: To: Lijun Dong Cc: "dispatch@ietf.org" , Stuart Clayman , Muge Sayit Content-Type: multipart/alternative; boundary="00000000000051931d05e3aa9915" Archived-At: Subject: Re: [dispatch] Draft on Discarding Priority of RTP Video Packets X-BeenThere: dispatch@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: DISPATCH Working Group Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Jul 2022 07:19:02 -0000 --00000000000051931d05e3aa9915 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, I had a proposal in the past to use https://datatracker.ietf.org/doc/html/draft-ietf-avtext-framemarking-13 for defining priority in the past. see https://datatracker.ietf.org/doc/html/draft-even-avtcore-priority-markings-= 03 . Roni Even On Wed, Jul 13, 2022 at 2:59 AM Lijun Dong wrote= : > Hi dispatch: > > > > I want to share my recently submitted draft on =E2=80=9CDiscarding Priori= ty of RTP > Video Packets=E2=80=9D. > > > > https://datatracker.ietf.org/doc/draft-dong-priority-rtp-packet/ > > > > > It is observed that significance difference or discarding priority might > exist among RTP packets which encapsulate video streaming data with the > existing modern video codecs. So selectively dropping RTP packets accordi= ng > to their significances could be a complementary mechanism when dealing wi= th > network congestion and improve end user=E2=80=99s QoE. The draft proposes= that the > video source or edge node with media-awareness could perform mapping of R= TP > packet discarding priority carried in RTP NALU header to a DSCP value, su= ch > that the priority-based dropping could happen at the packet level when > network congestion happens. > > > > I look forward to your generous comments and suggestions. > > > > Lijun > > > > > > > _______________________________________________ > dispatch mailing list > dispatch@ietf.org > https://www.ietf.org/mailman/listinfo/dispatch > --00000000000051931d05e3aa9915 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Wed, Jul 13, 2022 at 2:59 AM Lijun Dong <lijun.dong@futurewei.com> = wrote:

Hi dispatch:

=C2=A0

I want to share my recently submitted draft on =E2= =80=9CDiscarding Priority of RTP Video Packets=E2=80=9D.

=C2=A0

https://datatracker.ietf.org/doc/d= raft-dong-priority-rtp-packet/

=C2=A0

It is observed that significance difference or disca= rding priority might exist among RTP packets which encapsulate video stream= ing data with the existing modern video codecs. So selectively dropping RTP= packets according to their significances could be a complementary mechanism when dealing with network congestion an= d improve end user=E2=80=99s QoE. The draft proposes that the video source = or edge node with media-awareness could perform mapping of RTP packet disca= rding priority carried in RTP NALU header to a DSCP value, such that the priority-based dropping could happen at the= packet level when network congestion happens.

=C2=A0

I look forward to your generous comments and suggest= ions.

=C2=A0

Lijun

=C2=A0

=C2=A0

=C2=A0

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