From zhangyunfei@chinamobile.com Mon Jun 1 07:46:22 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 968313A6D27 for ; Mon, 1 Jun 2009 07:46:22 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -94.971 X-Spam-Level: X-Spam-Status: No, score=-94.971 tagged_above=-999 required=5 tests=[AWL=1.998, BAYES_00=-2.599, FROM_EXCESS_BASE64=1.456, HTML_MESSAGE=0.001, J_CHICKENPOX_23=0.6, J_CHICKENPOX_42=0.6, J_CHICKENPOX_51=0.6, RELAY_IS_221=2.222, SARE_SUB_ENC_UTF8=0.152, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kKirg3ffcdZP for ; Mon, 1 Jun 2009 07:46:20 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id BFBA53A6F34 for ; Mon, 1 Jun 2009 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with ESMTP id hapq18l9fj7b for ; Thu, 4 Jun 2009 00:47:44 -0700 (PDT) Received: from mail.fit.nokia.com (mail.fit.nokia.com [195.148.124.195]) by core3.amsl.com (Postfix) with ESMTP id 486BE3A6B4D for ; Thu, 4 Jun 2009 00:47:44 -0700 (PDT) Received: from [141.39.21.155] ([141.39.21.155]) (authenticated bits=0) by mail.fit.nokia.com (8.14.3/8.14.3) with ESMTP id n547lPWI009775 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 4 Jun 2009 10:47:25 +0300 (EEST) (envelope-from lars.eggert@nokia.com) Message-Id: From: Lars Eggert To: zhangyunfei In-Reply-To: <200905271906318282982@chinamobile.com> Content-Type: multipart/signed; boundary=Apple-Mail-42--493527257; micalg=sha1; protocol="application/pkcs7-signature" Mime-Version: 1.0 (Apple Message framework v935.3) Date: Thu, 4 Jun 2009 09:47:24 +0200 References: <200905271906318282982@chinamobile.com> X-Mailer: Apple Mail (2.935.3) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.2 (mail.fit.nokia.com [212.213.221.39]); Thu, 04 Jun 2009 10:47:27 +0300 (EEST) Cc: "ppsp@ietf.org" Subject: Re: [ppsp] ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Jun 2009 07:47:45 -0000 --Apple-Mail-42--493527257 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Hi, I've tentatively listed PPSP as BOF proposal at http://trac.tools.ietf.org/bof/trac/wiki/WikiStart , but I haven't received an explicit BOF request yet. There are only a few days left for this; should I expect one? Lars PS: See http://tools.ietf.org/html/rfc5434 http://www.ietf.org/ietf/1bof-procedures.txt http://www.ietf.org/instructions/MTG-SLOTS.html On 2009-5-27, at 13:06, zhangyunfei wrote: > Dear all, > Attached is the initial version of ppsp charter.I've also > submitted a new version of PPSP problem statement draft to IETF > website in the following link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-statement-03.txt > ) > .Any comments and suggestions are highly welcome. > The abstract is as follows: > We propose to develop an open peer-to-peer (P2P) streaming protocol > named PPSP. This document describes the problems related to PPSP and > outlines considerations that have to be taken in account when > arriving at equitable solutions. > > Yunfei > Best regards! > Sincerely yours, > Yunfei > 2009-05-27 > ***************************************************** > Yunfei Zhang, Ph.D. > R&D, CHINA MOBILE COMMUNICATIONS CORPORATION > Tel: +86 10 158016966688 ext. 3247 > Fax: +86 10 63601087 > MOBILE: 1360-1032-119 > ***************************************************** > > > ________________________________ > zhangyunfei > 2009-05-27 > --Apple-Mail-42--493527257 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGQDCCAvkw ggJioAMCAQICEEi7WbMMKa2GLKFpQDaOBQEwDQYJKoZIhvcNAQEFBQAwYjELMAkGA1UEBhMCWkEx JTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMTI1RoYXd0ZSBQ 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K/fJe8lYHZ4J6xoUMVhOpxbEI3laEGKA9w2QtTwjNWXzIOKx8S510oXDHPq1kAAAAAAAAA== --Apple-Mail-42--493527257-- From zhangyunfei@chinamobile.com Tue Jun 9 02:15:58 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7CBAC3A6A10 for ; Tue, 9 Jun 2009 02:15:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.572 X-Spam-Level: X-Spam-Status: No, score=-95.572 tagged_above=-999 required=5 tests=[AWL=0.601, BAYES_00=-2.599, HTML_MESSAGE=0.001, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0QJimjLKkWKi for ; Tue, 9 Jun 2009 02:15:57 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id A05D63A694C for ; Tue, 9 Jun 2009 02:15:55 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.42]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009060917154831-14606 ; Tue, 9 Jun 2009 17:15:48 +0800 Date: Tue, 9 Jun 2009 17:15:46 +0800 From: "zhangyunfei" To: "Lars Eggert" References: <200906081549563595524@chinamobile.com> <3B62FD29-8EE5-4AE1-A8D5-96B9BC2DD31F@nokia.com> Message-ID: <200906091715460311127@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-09 17:15:48, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-09 17:16:04, Serialize complete at 2009-06-09 17:16:04 Content-Type: multipart/alternative; boundary="=====003_Dragon464885674444_=====" Cc: "gonzalo.camarillo" , "james.seng" , "ppsp@ietf.org" Subject: Re: [ppsp] PPSP BOF issue X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 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MIME_8BIT_HEADER=0.3, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, SARE_SUB_OBFU_Q1=0.227, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IHdd8E0JU1ly for ; Tue, 9 Jun 2009 02:40:02 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id C89513A694C for ; Tue, 9 Jun 2009 02:40:01 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.42]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009060917395735-15390 ; Tue, 9 Jun 2009 17:39:57 +0800 Date: Tue, 9 Jun 2009 17:39:56 +0800 From: "zhangyunfei" To: "=?gb2312?B?VmljdG9yX1Bhc2N1YWxfqKJ2aWxh?=" References: <618e24240906090219p4d44924ft7a8ac404057465f5@mail.gmail.com> Message-ID: <200906091739559218348@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-09 17:39:57, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-09 17:40:08, Serialize complete at 2009-06-09 17:40:08 Content-Type: multipart/alternative; boundary="=====003_Dragon870517188800_=====" Cc: ppsp Subject: Re: [ppsp] draft-zong-ppsp-reqs (was Re: PPSP BOF issue) X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Jun 2009 09:40:03 -0000 This is a multi-part message in MIME format. --=====003_Dragon870517188800_===== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gb2312" SGksVmljdG9yLA0KICAgVGhhbmtzIGZvciB5b3VyIHN1Z2dlc3Rpb24uU3VyZWx5IHdlIGFyZSBp bnRlcmVzdGVkIGluIHVwZGF0aW5nIHRoZSByZXFpcmVtZW50IGRyYWZ0LkFuZCBJIHN1Z2dlc3Qg 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h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=Ab7uzsC6qIzMhC9mEh49WFR1jCgtXeZAojepvKnBzzU=; b=lWF7ab+e606wTiiKqm+BL83xira3wWxJrixvUX3q/yDK8Gp1S0OUND/0Luu2X0xhPM kCao7X7eqpHEZvudFsw/n9Yu8wIXv2vy5KZayHwZl1Yo2tNJ8d/bKw5mgThkR06hucq6 oUasak3isWP3jM3aNxv36o5lrOMdNHEwpTXwg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=udv1LR7oM+1vpcDCAc/KQivn/yCcqACt7N1u/C3hob2N8JFFYrRWQmo6PAmVKVCEut usnjasA7H09Lw29bfg7ZJplt2JGW4/EyrqZVHBOwFSLFK3pPQbJdNS6Qcbv6NfZ4iSKb KOS3wGCV7/as14sVdlHIf4nMXxechV5PS5uwM= MIME-Version: 1.0 Received: by 10.204.52.197 with SMTP id j5mr2282496bkg.157.1244714221421; Thu, 11 Jun 2009 02:57:01 -0700 (PDT) In-Reply-To: <8FE6AA8853337149919BB383582462F7031BDF7F@esealmw106.eemea.ericsson.se> References: <8FE6AA8853337149919BB383582462F7031BDF7F@esealmw106.eemea.ericsson.se> Date: Thu, 11 Jun 2009 11:57:01 +0200 Message-ID: <618e24240906110257w1b4210b1o228f7810b6c57de4@mail.gmail.com> From: =?UTF-8?Q?Victor_Pascual_=C3=81vila?= To: ppsp@ietf.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [ppsp] Fwd: [MMUSIC] New draft on "SIP/SDP Overlap with RTSP" X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jun 2009 09:56:58 -0000 FYI ---------- Forwarded message ---------- From: Jan Lindquist Date: Wed, Jun 10, 2009 at 4:32 PM Subject: [MMUSIC] New draft on "SIP/SDP Overlap with RTSP" To: mmusic@ietf.org Cc: xavier.marjou@orange-ftgroup.com, priyarajagopal@motorola.com Hello, A new draft has been uploaded titled "SIP/SDP Overlap with RTSP" (draft-lindquist-mmusic-sip-rtsp-00). The draft is co-signed by Jan Lindquist, Jouni Maenpaa, Priya Rajagopal and Xavier Marjou. A slot is requested in MMUSIC for the July Stockholm meeting to present the draft. http://www3.ietf.org/proceedings/staging/draft-lindquist-mmusic-sip-rtsp-00= .txt For your convenience here is the abstract taken from the draft. =C2=A0=C2=A0 The Session Initiation Protocol (SIP) is widely used for estab= lishing =C2=A0=C2=A0 multimedia sessions, whereas the Real Time Streaming Protocol = (RTSP) =C2=A0=C2=A0 is a protocol for use in streaming media systems.=C2=A0 RTSP h= as a dual =C2=A0=C2=A0 role: it establishes a media session for the delivery of strea= ming =C2=A0=C2=A0 media as well as controls the streaming session once it has be= en set =C2=A0=C2=A0 up.=C2=A0 Since RTSP is also used for session establishment, t= here exists =C2=A0=C2=A0 an overlap between the functionality provided by SIP and RTSP.= =C2=A0 In =C2=A0=C2=A0 this document, we analyze a model in which SIP and the SDP off= er/ =C2=A0=C2=A0 answer model are used to set up a streaming session with an RT= SP =C2=A0=C2=A0 control channel and one or more media delivery streams.=C2=A0 = Such a model =C2=A0=C2=A0 is beneficial since it allows the reuse of current architectur= e and =C2=A0=C2=A0 functionality (e.g., authentication, charging, and QoS) establ= ished =C2=A0=C2=A0 around SIP also for RTSP-based streaming. If there are any questions or comments on the new draft we will be glad to answer them. Best Regards, Jan Lindquist _______________________________________________ mmusic mailing list mmusic@ietf.org https://www.ietf.org/mailman/listinfo/mmusic --=20 Victor Pascual =C3=81vila From softgear@etri.re.kr Mon Jun 22 04:49:55 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CEEF53A6961 for ; Mon, 22 Jun 2009 04:49:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.05 X-Spam-Level: ** X-Spam-Status: No, score=2.05 tagged_above=-999 required=5 tests=[BAYES_50=0.001, HELO_MISMATCH_INFO=1.448, HTML_MESSAGE=0.001, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id O+vo4zi8JWpA for ; Mon, 22 Jun 2009 04:49:50 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 1969C3A685C for ; Mon, 22 Jun 2009 04:49:49 -0700 (PDT) Received: from SOFTGEAR ([129.254.232.20]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Mon, 22 Jun 2009 20:50:03 +0900 From: "Softgear Ko" To: "'zhangyunfei'" , References: <200905271906318282982@chinamobile.com> In-Reply-To: <200905271906318282982@chinamobile.com> Date: Mon, 22 Jun 2009 20:50:20 +0900 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F0_01C9F37B.0EC04B60" X-Mailer: Microsoft Office Outlook 12.0 thread-index: Acneu2pGuI4SpiiFQfePf9OwvH1OxQUb7log Content-Language: ko X-OriginalArrivalTime: 22 Jun 2009 11:50:03.0953 (UTC) FILETIME=[94A39210:01C9F32F] Subject: Re: [ppsp] ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Jun 2009 11:49:55 -0000 This is a multi-part message in MIME format. ------=_NextPart_000_00F0_01C9F37B.0EC04B60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hello, Yunfei. I have some comments. In 3.4 In korea, the mobilTV subscriber is 17 million. - May I get a reference or document about this? I have never heard about this. In 4.2.1, I don't understand that Figure 2 P2PSIP process. We need update it and explain some more. About NAT traversal in RELOAD, TURN server usage for RELOAD in P2PSIP is not proximity aware. It means peer get a TURN server randomly in the whole Internet. It may be far from the requesting peer. Therefore, we can't reuse it directly. As you mentioned, we focus on live streaming. I think pure live streaming has no buffer for other(child in tree). But, according to the draft, peer exchange bitmap. This means each peer (which is a parent or child) must have buffer for other peer. If peer have buffer and other peer use it, the delivered data has more latency. This is not a pure live streaming. Therefore, there is two types of live streaming - pure live streaming and buffered live streaming. I think we focus on buffered live streaming than pure live streaming. But I think we need discuss whether we focus on pure live streaming. In 8, Where can I get [MobileTV] ? Additionally, I think, we have to place emphasis on flash crowd situation of P2P IPTV service. Best regards, - Softgear Ko From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of zhangyunfei Sent: Wednesday, May 27, 2009 8:07 PM To: ppsp@ietf.org Subject: [ppsp] ppsp charter and problem statement draft Dear all, Attached is the initial version of ppsp charter.I've also submitted a new version of PPSP problem statement draft to IETF website in the following link.( http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-statement-03.tx t) .Any comments and suggestions are highly welcome. The abstract is as follows: We propose to develop an open peer-to-peer (P2P) streaming protocol named PPSP. This document describes the problems related to PPSP and outlines considerations that have to be taken in account when arriving at equitable solutions. Yunfei Best regards! Sincerely yours, Yunfei 2009-05-27 ***************************************************** Yunfei Zhang, Ph.D. R&D, CHINA MOBILE COMMUNICATIONS CORPORATION Tel: +86 10 158016966688 ext. 3247 Fax: +86 10 63601087 MOBILE: 1360-1032-119 ***************************************************** _____ zhangyunfei 2009-05-27 ------=_NextPart_000_00F0_01C9F37B.0EC04B60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hello, Yunfei.

 

=

I have some comments.

 

=

In 3.4

 In korea, the mobilTV subscriber is 17 million.  – May I get a reference or document about this?  I have never heard about = this.

 

=

In 4.2.1,

I don’t understand that Figure 2 P2PSIP = process. We need update it and explain some more.

About NAT traversal  in RELOAD, TURN = server usage for RELOAD in P2PSIP is not proximity aware. It means peer get a = TURN server randomly in the whole Internet. It may be far from the requesting = peer. Therefore, we can’t reuse it directly.

 

=

As you mentioned, we focus on live streaming.  I think pure live = streaming has no buffer for other(child in tree). But, according to the draft, peer = exchange bitmap. This means each peer (which is a parent or child) must have = buffer for other peer. If peer have buffer and other peer use it, the delivered = data has more latency. This is not a pure live streaming. Therefore, there is two = types of live streaming – pure live streaming and buffered live = streaming. I think we focus on buffered live streaming than pure live streaming. But = I think we need discuss whether we focus on pure live = streaming.

 

=

In 8,

Where can I get [MobileTV] ?

 

=

Additionally, I think, we have to place emphasis on flash crowd situation of P2P IPTV service.

 

=

Best regards,

 

=

-      Softgear Ko

 

=

 

From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of zhangyunfei
Sent: Wednesday, May 27, 2009 8:07 PM
To: ppsp@ietf.org
Subject: [ppsp] ppsp charter and problem statement = draft

 

Dear all,

  = ;  Attached is the initial version of ppsp charter.I've also submitted a new version = of PPSP problem statement draft to IETF website in the following = link.(http://www.= ietf.org/internet-drafts/draft-zhang-ppsp-problem-statement-03.txt) .Any comments and suggestions are highly welcome.

  = ;     The abstract is as follows:

We propose to develop an open peer-to-peer = (P2P) streaming protocol named PPSP. This document describes the problems = related to PPSP and outlines considerations that have to be taken in account when = arriving at equitable solutions.

 

Yunfei

  Best regards!
  Sincerely yours,
      Yunfei
       2009-05-27
*****************************************************

Yunfei Zhang, Ph.D.

R&D, CHINA MOBILE COMMUNICATIONS = CORPORATION

Tel: +86 10 158016966688 ext. 3247

Fax: +86 10 63601087

MOBILE: 1360-1032-119

*************************************************= ****

 =

 

zhangyunfei

2009-05-27

------=_NextPart_000_00F0_01C9F37B.0EC04B60-- From zhangyunfei@chinamobile.com Tue Jun 23 03:01:25 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id AEF0F28C28C for ; Tue, 23 Jun 2009 03:01:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.404 X-Spam-Level: X-Spam-Status: No, score=-95.404 tagged_above=-999 required=5 tests=[AWL=0.114, BAYES_20=-0.74, J_CHICKENPOX_33=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_64=0.6, J_CHICKENPOX_74=0.6, J_CHICKENPOX_92=0.6, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YACgLnRpg-dg for ; Tue, 23 Jun 2009 03:01:24 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 2A12D3A6C6D for ; Tue, 23 Jun 2009 03:01:24 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.2.2.9]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062318012410-24345 ; Tue, 23 Jun 2009 18:01:24 +0800 Date: Tue, 23 Jun 2009 18:01:20 +0800 From: "zhangyunfei" To: "ppsp@ietf.org" Message-ID: <200906231801203126019@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-23 18:01:24, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-23 18:01:41, Serialize complete at 2009-06-23 18:01:41 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="gb2312" Subject: [ppsp] initial proposal of PPSP component architecture X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2009 10:01:25 -0000 Dear all, As Gonzalo suggested,PPSP problem statement draft is better to include a figure to express the component architecture.I propose the following layer architecture as the initial input.The components architecuture is as follows: +=================================================================+ | +-------------------------------------------------------------+ | | | Application Layer | | | +-------------------------------------------------------------+ | |=================================================================| | Play-out Layer | | +----------------+ +---------------+ +-----------------+ | | | start | | Pause | | Stop | | | +----------------+ +---------------+ +-----------------+ | |=================================================================| | Information Layer | | +----------------+ +---------------+ +-----------------+ | | | Registration | | Report | | Statistics | | | +----------------+ +---------------+ +-----------------+ | |=================================================================| | Communication Layer | | +------------------------+ +--------------------------------+ | | | Topology Creation | |Head Node/Tracker Communication | | | +------------------------+ +--------------------------------+ | | +------------------------+ +--------------------------------+ | | | Neighbor Communication | | Bootstrap | | | +------------------------+ +--------------------------------+ | |=================================================================| | +-------------------------------------------------------------+ | | | Transport Layer | | | +-------------------------------------------------------------+ | |=================================================================| It can be divided into 5 layers: 1)Transport Layer is responsible for data transmission between peers, UDP,TCP or other protocols can be used; 2)Communicaton layer is the key layer in PPSP, including four components: 1)Topology creation is a component each peer has to request to join the overlay,like tree or mesh; 2)Head Node/Tracker Communication is a component each peer continually to get peer list or peer info report to the tracker or head node. 3)Neighbor Communication is a component that peers exchange bitmap or other neigbor availability information for loop avoidance(in tree). 4)Bootstrap is a component to introduce a newly joined node to get the tracker or head node information.It keeps monitoring the trackers and head nodes. 3)Information layer is a layer that nodes register to the system,publish their contents,report their useful inforamation beyond those in the peer tracker reporting for peer selection and give statistics to the trackers.The tracker itself also use statistic and report module for global control in upload bandwidth consumption,overhead consumption and other regards. 4)Play-out layer is a layer to control the action of the media brower.RTSP is in this scope. 5)Application layer is the top layer in the ISO/OSI model,where PPSP application exists. We are planning to add this part in the Problem statement draft.Any comments are welcome. BR yunfei 2009-06-23 From zhangyunfei@chinamobile.com Tue Jun 23 03:31:35 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 23C5528C28C for ; Tue, 23 Jun 2009 03:31:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.154 X-Spam-Level: X-Spam-Status: No, score=-95.154 tagged_above=-999 required=5 tests=[AWL=-0.181, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UtiVVzzmCtzr for ; Tue, 23 Jun 2009 03:31:33 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 32E783A6ADF for ; Tue, 23 Jun 2009 03:31:33 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.2.2.9]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062318313436-25299 ; Tue, 23 Jun 2009 18:31:34 +0800 Date: Tue, 23 Jun 2009 18:31:30 +0800 From: "zhangyunfei" To: "Softgear Ko" , "ppsp@ietf.org" References: <200905271906318282982@chinamobile.com> Message-ID: <200906231831304538608@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-23 18:31:34, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-23 18:31:49, Serialize complete at 2009-06-23 18:31:49 Content-Type: multipart/alternative; boundary="=====003_Dragon513318353215_=====" Subject: Re: [ppsp] ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2009 10:31:35 -0000 This is a multi-part message in MIME format. --=====003_Dragon513318353215_===== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gb2312" SGkgU29mdGdlYXIsDQogIFRoYW5rcyBmb3IgeW91ciBjb21tZW50cy5QbGVhc2Ugc2VlIGlubGlu ZSBhYm91dCB0aGUgcmVwbHkuDQoNCiAgICAgICAgICAgICBCZXN0IHJlZ2FyZHMsDQogICAgICAg ICAgICAgICAgIFl1bmZlaQ0KDQoNCg0KDQp6aGFuZ3l1bmZlaQ0KMjAwOS0wNi0yMw0KDQoNCg0K t6K8/sjLo7ogU29mdGdlYXIgS28NCreiy83Ksbzko7ogMjAwOS0wNi0yMiAxOTo1MDoxMA0KytW8 /sjLo7ogJ3poYW5neXVuZmVpJzsgcHBzcEBpZXRmLm9yZw0Ks63LzaO6IA0K1vfM4qO6IFJFOiBb cHBzcF0gcHBzcCBjaGFydGVyIGFuZCBwcm9ibGVtIHN0YXRlbWVudCBkcmFmdA0KDQpIZWxsbywg WXVuZmVpLg0KIA0KSSBoYXZlIHNvbWUgY29tbWVudHMuIA0KIA0KSW4gMy40DQogSW4ga29yZWEs IHRoZSBtb2JpbFRWIHN1YnNjcmliZXIgaXMgMTcgbWlsbGlvbi4gIKhDIE1heSBJIGdldCBhIHJl ZmVyZW5jZSBvciBkb2N1bWVudCBhYm91dCB0aGlzPyAgSSBoYXZlIG5ldmVyIGhlYXJkIGFib3V0 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UD48L0RJVj48L0RJVj48L0ZPTlQ+PC9ESVY+PC9CT0RZPjwvSFRNTD4NCg== --=====003_Dragon513318353215_=====-- From softgear@etri.re.kr Tue Jun 23 04:41:11 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3E1343A6CDF for ; Tue, 23 Jun 2009 04:41:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.75 X-Spam-Level: * X-Spam-Status: No, score=1.75 tagged_above=-999 required=5 tests=[AWL=0.300, BAYES_50=0.001, HELO_MISMATCH_INFO=1.448, HTML_MESSAGE=0.001] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Cpla+mlA0qDx for ; Tue, 23 Jun 2009 04:41:06 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 85D9D28C28D for ; Tue, 23 Jun 2009 04:41:06 -0700 (PDT) Received: from SOFTGEAR ([129.254.232.20]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Tue, 23 Jun 2009 20:41:21 +0900 From: "Softgear Ko" To: Date: Tue, 23 Jun 2009 20:41:41 +0900 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A7_01C9F443.038BCE90" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acnz95NEvsk/VfjhS1+L8nHxP7d4wQ== Content-Language: ko X-OriginalArrivalTime: 23 Jun 2009 11:41:21.0995 (UTC) FILETIME=[87F0D9B0:01C9F3F7] Subject: [ppsp] Business model of PPSP X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2009 11:41:11 -0000 This is a multi-part message in MIME format. ------=_NextPart_000_00A7_01C9F443.038BCE90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dear All. I think one reason of PPSP standardization is to expand existing P2P streaming service and to interoperate with P2P streaming service providers. I wonder - After we make PPSP, who will implement/serve PPSP? Who/How can earn money? We need to answer to why PPSP. We have to address some business models of PPSP to suggest the bright or tasteful future of PPSP. Case 1. A contents provider (=program provider) can add commercial advertisements into his contents. And, he can get money from advertising company. Case 2. A channel portal who collect channels can gather user account and shows channel list to users. As you know, user accounts are money. A channel portal can add commercial advertisements onto channel list page. He may send commercial email to user using user account information. Case 3. A software developer can make free software which has advertisement or he can make commercial player. Case 4. A hardware company can make a settop box and they can sell it to people. If PPSP become famous, many IPTV settop or mobile device company will make a PPSP aware settop. Currently, many settop company depends on IPTV service provider. However, If we make PPSP, settop company will be free from IPTV service providers. Some cases require billing model or counting how many people showed the channel. According to the component architecture, we have statistics and report but we need to make a sure and protect from the forgery. And, we have to make/choose mechanism to give some benefits to a high uploader than a free downloader. I think many company doesn't want to PPSP to be a just free service. Let's share your ideas about business model. - Softgear Ko ------=_NextPart_000_00A7_01C9F443.038BCE90 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear = All.

 

I = think one reason of PPSP standardization is to expand existing P2P streaming service and = to interoperate with P2P streaming service providers. =

I = wonder – After we make PPSP, who will implement/serve PPSP? Who/How can earn = money?  We need to answer to why PPSP.

We = have to address some business models of PPSP to suggest the bright or tasteful = future of PPSP.

 

Case = 1. A contents provider (=3Dprogram provider) can add commercial advertisements into = his contents. And, he can get money from advertising company.

Case = 2. A channel portal who collect channels can gather user account and shows channel = list to users. As you know, user accounts are money. A channel portal can add = commercial advertisements onto channel list page. He may send commercial email to = user using user account information.

Case = 3. A software developer can make free software which has advertisement or he can make commercial player.

Case = 4. A hardware company can make a settop box and they can sell it to people. = If PPSP become famous, many IPTV settop or mobile device company will make a = PPSP aware settop. Currently, many settop company depends on IPTV service provider. = However, If we make PPSP, settop company will be free from IPTV service = providers.

 

Some = cases require billing model or counting how many people showed the channel. = According to the component architecture, we have statistics and report but we need = to make a sure and protect from the forgery. 

And, = we have to make/choose mechanism to give some benefits to a high uploader than a free = downloader.

I = think many company doesn’t want to PPSP to be a just free = service.

 

Let’s share your ideas about business model.

 

 

-      = Softgear = Ko

 

------=_NextPart_000_00A7_01C9F443.038BCE90-- From zesus75@gmail.com Tue Jun 23 06:58:13 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8304828C34D for ; Tue, 23 Jun 2009 06:58:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.024 X-Spam-Level: * X-Spam-Status: No, score=1.024 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, HTML_MESSAGE=0.001, J_CHICKENPOX_33=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_64=0.6, J_CHICKENPOX_74=0.6, J_CHICKENPOX_92=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Z0cp6YQVodhT for ; Tue, 23 Jun 2009 06:58:11 -0700 (PDT) Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.229]) by core3.amsl.com (Postfix) with ESMTP id 6221328C348 for ; Tue, 23 Jun 2009 06:58:11 -0700 (PDT) Received: by rv-out-0506.google.com with SMTP id b25so18596rvf.49 for ; Tue, 23 Jun 2009 06:58:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=qJPLYJCOmBG1xBJhGTzEaCl4dfA2do3L8zR2Dav0P9E=; b=SGI1CG/aEpUOlq3JQDeiH8iytdzcQReCFAETq9d+NFZUxLmBoeQRfAw9RDDurSXlhN 4jJn3QMBLfFtqs2laPot31/9Xk6qwWe6LWyadMetmavLLWuwrD/qzqxuljqTjHGQwtUd PgryfDNj1pShq/GuczMcfONrjUClpYm/nWRMg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=amZ7lrUVqZ4i4IjHa28hTg+y4IOWJNoPpo8OZvrL24Io+wQP25UIGZlKpnmot9+HSw +fu75/kwCGp1PxZn/PKb1jNsObd4WHMGseDfSJw9fw7pPJrW/GkX1SlQxth5/x8c7N/l yQyAYaNAwGw9z7if3SIpuIJfSJWE6SfDNodhg= MIME-Version: 1.0 Sender: zesus75@gmail.com Received: by 10.141.28.4 with SMTP id f4mr142045rvj.37.1245765505383; Tue, 23 Jun 2009 06:58:25 -0700 (PDT) In-Reply-To: <008e01c9f405$eade2290$c09a67b0$@re.kr> References: <200906231801203126019@chinamobile.com> <008101c9f3f7$6ae08320$40a18960$@re.kr> <600459950906230616u247f8cb7p6a47991cb17c223b@mail.gmail.com> <008e01c9f405$eade2290$c09a67b0$@re.kr> Date: Tue, 23 Jun 2009 22:58:25 +0900 X-Google-Sender-Auth: 5879aab0fb2a9be7 Message-ID: <600459950906230658j2474b5dbi11b0aa3f72cb2803@mail.gmail.com> From: Alex Kyungho KIM To: osh93@etri.re.kr, ppsp@ietf.org Content-Type: multipart/alternative; boundary=000e0cd179fc6bff7f046d0462c6 Subject: Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM*** 7.949 (5) RE: initial proposal of PPSP component architecture X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2009 13:58:13 -0000 --000e0cd179fc6bff7f046d0462c6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear my colleagues, Thank you your quick response on my question So, I am not sure what you concern the role of 'Application Layer' is. we agree on the core of PPSP would be the communication layer in the OSI 7 Layer apsect. What would you expect any problems happening if 'Application layer' is not face on 'Communication layer'? Let's say 'Application Layer' is able to access the 'Play-out layer; and 'Information layer' but don't 'touch' the 'Communication layer'. We may extend the role of 'Information layer' to cover some functionality of what osh93 want. It could be 'session management' which is relavant to 'Communication layer'. How do you think of this? +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ | +-------------------------------------------------------------+ | | | Application Layer | | | |---------------------------------------------------------------+ | | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D| | +-----------------------------+--------------------------------+ | Play-out Layer | Information Layer | | +-----------------------------+--------------------------------+ |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | Communication Layer | | +------------------------+ +--------------------------------+ | | | Topology Creation | |Head Node/Tracker Communication | | | +------------------------+ +--------------------------------+ | | +------------------------+ +--------------------------------+ | | | Neighbor Communication | | Bootstrap | | | +------------------------+ +--------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | +-------------------------------------------------------------+ | | | Transport Layer | | | +-------------------------------------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| Regards, Alex 2009/6/23 =EC=98=A4=EC=8A=B9=ED=9B=88_2009 > Dear Alex > > > > Sorry for my ambiguous expression. > > That means that =E2=80=98Application Layer=E2=80=99 and =E2=80=98Communic= ation Layer=E2=80=99 are adjacent. > > > Is that clear now? > > > > Best Regards, > > Seung-Hun Oh > > > > *From:* zesus75@gmail.com [mailto:zesus75@gmail.com] *On Behalf Of *Alex > Kyungho KIM > *Sent:* Tuesday, June 23, 2009 10:17 PM > *To:* osh93@etri.re.kr > *Subject:* Re: [ppsp] ***SPAM*** 7.949 (5) RE: initial proposal of PPSP > component architecture > > > > Dear osh93, > > > > This is high level diagram to make someone understand our work or what we > are doing. You have several modifications but I should ask you a > question about your proposal. > > > > I am not clear "touch each other" in your comment. What does it mean? > > > > Regards, > > Alex > > 2009/6/23 =EC=98=A4=EC=8A=B9=ED=9B=88_2009 > > Dear yunfei > > I think it is good idea to in insert this figure into the PPSP problem > statement draft. > But I think it needs more clarification. > > I think that the word, 'layer', is not appropriate for 'Play-out Layer' a= nd > 'Information Layer', or the position of them need to be a little bit > modified. > As you know, each layer must be vertically related in communication world= , > as far as I know. > Here is my minor proposal: > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > | +-------------------------------------------------------------+ | > | | Application Layer | | > | | +--------------------------------------------------+ | > | | | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D| > | | | | Play-out Layer | Information Layer | > | | | | +----+ +----+ +---+ | +----+ +----+ +---+ | > | | | | | | | | | | | | | | | | | | > | +----------+ | +----+ +----+ +---+ | +----+ +----+ +---+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | Communication Layer | > | +------------------------+ +--------------------------------+ | > | | Topology Creation | |Head Node/Tracker Communication | | > | +------------------------+ +--------------------------------+ | > | +------------------------+ +--------------------------------+ | > | | Neighbor Communication | | Bootstrap | | > | +------------------------+ +--------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | +-------------------------------------------------------------+ | > | | Transport Layer | | > | +-------------------------------------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > > I try to locate both 'Play-out Layer' and 'Info. Layer' parallely and > 'Application Layer' and 'Communication Layer' try to be located to touch > each other. > > These are just my opinion. > > Best Regards, > > Seung-Hun Oh > > > -----Original Message----- > From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of > zhangyunfei > Sent: Tuesday, June 23, 2009 7:01 PM > To: ppsp@ietf.org > Subject: [ppsp] initial proposal of PPSP component architecture > > > Dear all, > As Gonzalo suggested,PPSP problem statement draft is better to include > a figure to express the component architecture.I propose the following > layer architecture as the initial input.The components architecuture is a= s > follows: > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > | +-------------------------------------------------------------+ | > | | Application Layer | | > | +-------------------------------------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | Play-out Layer | > | +----------------+ +---------------+ +-----------------+ | > | | start | | Pause | | Stop | | > | +----------------+ +---------------+ +-----------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | Information Layer | > | +----------------+ +---------------+ +-----------------+ | > | | Registration | | Report | | Statistics | | > | +----------------+ +---------------+ +-----------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | Communication Layer | > | +------------------------+ +--------------------------------+ | > | | Topology Creation | |Head Node/Tracker Communication | | > | +------------------------+ +--------------------------------+ | > | +------------------------+ +--------------------------------+ | > | | Neighbor Communication | | Bootstrap | | > | +------------------------+ +--------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | +-------------------------------------------------------------+ | > | | Transport Layer | | > | +-------------------------------------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > > It can be divided into 5 layers: > 1)Transport Layer is responsible for data transmission between peers, > UDP,TCP or other protocols can be used; > 2)Communicaton layer is the key layer in PPSP, including four components: > 1)Topology creation is a component each peer has to request to join > the overlay,like tree or mesh; > 2)Head Node/Tracker Communication is a component each peer > continually to get peer list or peer info report to the tracker or head > node. > 3)Neighbor Communication is a component that peers exchange bitmap o= r > other neigbor availability information for loop avoidance(in tree). > 4)Bootstrap is a component to introduce a newly joined node to get > the tracker or head node information.It keeps monitoring the trackers and > head nodes. > 3)Information layer is a layer that nodes register to the system,publish > their contents,report their useful inforamation beyond those in the peer > tracker reporting for peer selection and give statistics to the > trackers.The tracker itself also use statistic and report module for glob= al > control in upload bandwidth consumption,overhead consumption and other > regards. > 4)Play-out layer is a layer to control the action of the media brower.RTS= P > is in this scope. > 5)Application layer is the top layer in the ISO/OSI model,where PPSP > application exists. > > We are planning to add this part in the Problem statement draft.Any > comments are welcome. > > BR > > yunfei > 2009-06-23 > > _______________________________________________ > ppsp mailing list > ppsp@ietf.org > https://www.ietf.org/mailman/listinfo/ppsp > > _______________________________________________ > ppsp mailing list > ppsp@ietf.org > https://www.ietf.org/mailman/listinfo/ppsp > > > > > -- > Alex Kyungho KIM > LG Electronics. > Senior Research Engineer > E-mail : zesus@lge.com > Office : +82 2 2102 0111 > Mobile : +82 10 7917 0406 > FAX : +82 2 2102 0140 > DTV Research Laboratory, LG Electronics. > Seoul University Research Park > San 4-1, BongCheon 7-Dong > KwanAk-Gu,Seoul, 151-919 > The Republic of Korea. > > _______________________________________________ > ppsp mailing list > ppsp@ietf.org > https://www.ietf.org/mailman/listinfo/ppsp > > --=20 Alex Kyungho KIM LG Electronics. Senior Research Engineer E-mail : zesus@lge.com Office : +82 2 2102 0111 Mobile : +82 10 7917 0406 FAX : +82 2 2102 0140 DTV Research Laboratory, LG Electronics. Seoul University Research Park San 4-1, BongCheon 7-Dong KwanAk-Gu,Seoul, 151-919 The Republic of Korea. --000e0cd179fc6bff7f046d0462c6 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Dear my colleagues,
=C2=A0
Thank you your=C2=A0quick response on my question
=C2=A0
So, I am not sure what you concern the role of 'Application Layer&= #39; is. we agree on the core of PPSP=C2=A0would be the=C2=A0communication = layer in the OSI 7 Layer apsect.
=C2=A0
What would you expect=C2=A0any problems happening if 'Application = layer' is not face=C2=A0on 'Communication layer'?=C2=A0=C2=A0
=C2=A0
Let's say 'Application Layer'=C2=A0is able to access=C2=A0= the 'Play-out layer; and 'Information layer' but don't '= ;touch' the 'Communication layer'. We may extend the role of &#= 39;Information layer' to cover some functionality of what osh93 want. I= t could be 'session management' which is relavant to 'Communica= tion layer'.
=C2=A0
How=C2=A0do you think of this?
=C2=A0
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
=C2=A0 | +---------= ----------------------------------------------------+ |
=C2=A0 | | =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 A= pplication Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 | |
=C2=A0 | |---------------------------------------------------------------+ = |
=C2=A0 |=C2=A0+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D|
=C2=A0 |=C2=A0+-----------------------------+----= ----------------------------+
=C2=A0=C2=A0=C2=A0 | =C2=A0 =C2=A0 Play-out Layer =C2=A0 =C2=A0 | =C2= =A0 =C2=A0Information Layer =C2=A0 =C2=A0|
=C2=A0 |=C2=A0+--------------= ---------------+--------------------------------+
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 | = =C2=A0Communication Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 | +------------------------+ =C2= =A0 +--------------------------------+ |
=C2=A0 | | =C2=A0 =C2=A0Topology Creation =C2=A0 | =C2=A0 |Head Node/Tracke= r Communication | |
=C2=A0 | +------------------------+ =C2=A0 +--------= ------------------------+ |
=C2=A0 | +------------------------+ =C2=A0 += --------------------------------+ |
=C2=A0 | | Neighbor Communication | = =C2=A0 | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Bootstrap =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +------------------------+ =C2=A0 +-------------------------------= -+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 = | +-------------------------------------------------------------+ |
=C2= =A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 Transport Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +-------------------------------------------------------------+ |<= br>=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|

=C2=A0
Regards,
Alex
=C2=A0
2009/6/23 =EC=98=A4=EC=8A=B9=ED=9B=88_2009 <osh93@etri.re.kr&g= t;

Dear Alex=

=C2=A0

Sorry for= my ambiguous expression.

That mean= s that =E2=80=98Application Layer=E2=80=99 and =E2=80=98Communication Layer= =E2=80=99 are adjacent.

Is that c= lear now?

=C2=A0

Best Rega= rds,

Seung-Hun= Oh

=C2=A0

From: zesus75@gmail.com [mailto:zesus75@gmail.com] On Behalf Of = Alex Kyungho KIM
Sent: Tuesday, June 23, 2009 10:17 PM
To: osh93@etri.re.kr
Subject: Re: [ppsp] ***SPAM*** 7.949 (5) RE: initial proposal of PPSP component a= rchitecture

=C2=A0

Dear osh93,

=C2=A0

This is high level diagram to make someone understa= nd our work or what we are doing. You have several modifications but I shou= ld ask you a question=C2=A0about your proposal.

=C2=A0

I am not clear "touch each other" in your= comment. What does it mean?

=C2=A0

Regards,

Alex

2009/6/23 =EC=98=A4=EC=8A=B9=ED=9B=88_2009 <osh93@etri.re.kr>

Dear yunfei

I think it is good idea to in in= sert this figure into the PPSP problem
statement draft.
But I think i= t needs more clarification.

I think that the word, 'layer', = is not appropriate for 'Play-out Layer' and
'Information Layer', or the position of them need to be a little bi= t
modified.
As you know, each layer must be vertically related in com= munication world,
as far as I know.
Here is my minor proposal:
=C2=A0 +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
=C2=A0 | +------= -------------------------------------------------------+ |
=C2=A0 | | = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 Application Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 | |
=C2=A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+----= ----------------------------------------------+ |
=C2=A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| +=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 | | =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0| | =C2=A0 =C2=A0 Play-out Layer =C2=A0 =C2=A0 | = =C2=A0 =C2=A0Information Layer =C2=A0 =C2=A0|
=C2=A0 | | =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0| | =C2=A0+----+ =C2=A0+----+ =C2=A0+---+ | =C2=A0 +---= -+ =C2=A0+----+ =C2=A0+---+ |
=C2=A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0| | =C2=A0| =C2=A0 =C2=A0| =C2=A0| =C2=A0 =C2=A0| =C2=A0| =C2=A0 | | =C2= =A0 | =C2=A0 =C2=A0| =C2=A0| =C2=A0 =C2=A0| =C2=A0| =C2=A0 | |
=C2=A0 | +----------+ | =C2=A0+----+ =C2=A0+----+ =C2=A0+---+ | =C2=A0 +---= -+ =C2=A0+----+ =C2=A0+---+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D|
=C2=A0 | =C2=A0Communication Layer =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 | +-= -----------------------+ =C2=A0 +--------------------------------+ |
=C2=A0 | | =C2=A0 =C2=A0Topology Creation =C2=A0 | =C2=A0 |Head Node/Tracke= r Communication | |
=C2=A0 | +------------------------+ =C2=A0 +--------= ------------------------+ |
=C2=A0 | +------------------------+ =C2=A0 += --------------------------------+ |
=C2=A0 | | Neighbor Communication | = =C2=A0 | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Bootstrap =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +------------------------+ =C2=A0 +-------------------------------= -+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 = | +-------------------------------------------------------------+ |
=C2= =A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 Transport Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +-------------------------------------------------------------+ |<= br>=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|

I try to = locate both 'Play-out Layer' and 'Info. Layer' parallely an= d
'Application Layer' and 'Communication Layer' try to be loc= ated to touch
each other.

These are just my opinion.

Best = Regards,

Seung-Hun Oh


-----Original Message-----
From:= ppsp-bounces@ie= tf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of
zhangyunfei
Sent: Tuesday, June 23, 2009 7:01 PM
To: ppsp@ietf.org
Subject: [ppsp] ini= tial proposal of PPSP component architecture


Dear all,
=C2=A0= =C2=A0As Gonzalo suggested,PPSP problem statement draft is better to inclu= de
a figure to express the component architecture.I propose the following
l= ayer architecture as the initial input.The components architecuture is asfollows:

=C2=A0 +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ =C2=A0 | +-------------------------------------------------------------+ |<= br>=C2=A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 Application Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +--------------------------= -----------------------------------+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D|
=C2=A0 | =C2=A0Play-out Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |
=C2=A0 | =C2=A0+-----= -----------+ =C2=A0 =C2=A0+---------------+ =C2=A0 =C2=A0+-----------------= + |
=C2=A0 | =C2=A0| =C2=A0 =C2=A0 start =C2=A0 =C2=A0 =C2=A0| =C2=A0 = =C2=A0| =C2=A0 =C2=A0 =C2=A0Pause =C2=A0 =C2=A0| =C2=A0 =C2=A0| =C2=A0 =C2= =A0 =C2=A0 Stop =C2=A0 =C2=A0 =C2=A0| |
=C2=A0 | =C2=A0+----------------= + =C2=A0 =C2=A0+---------------+ =C2=A0 =C2=A0+-----------------+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 | =C2=A0I= nformation Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 | =C2=A0+----------------+ =C2= =A0 =C2=A0+---------------+ =C2=A0 =C2=A0+-----------------+ |
=C2=A0 | = =C2=A0| =C2=A0Registration =C2=A0| =C2=A0 =C2=A0| =C2=A0 =C2=A0 Report =C2= =A0 =C2=A0| =C2=A0 =C2=A0| =C2=A0 =C2=A0Statistics =C2=A0 | |
=C2=A0 | =C2=A0+----------------+ =C2=A0 =C2=A0+---------------+ =C2=A0 =C2= =A0+-----------------+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D|
=C2=A0 | =C2=A0Communication Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 | +--------= ----------------+ =C2=A0 +--------------------------------+ |
=C2=A0 | | =C2=A0 =C2=A0Topology Creation =C2=A0 | =C2=A0 |Head Node/Tracke= r Communication | |
=C2=A0 | +------------------------+ =C2=A0 +--------= ------------------------+ |
=C2=A0 | +------------------------+ =C2=A0 += --------------------------------+ |
=C2=A0 | | Neighbor Communication | = =C2=A0 | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Bootstrap =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +------------------------+ =C2=A0 +-------------------------------= -+ |
=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
=C2=A0 = | +-------------------------------------------------------------+ |
=C2= =A0 | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 Transport Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 | |
=C2=A0 | +-------------------------------------------------------------+ |<= br>=C2=A0 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|

It can be= divided into 5 layers:
1)Transport Layer is responsible for data transm= ission between peers,
UDP,TCP or other protocols can be used;
2)Communicaton layer is the key = layer in PPSP, including four components:
=C2=A0 =C2=A0 =C2=A01)Topology= creation is a component each peer has to request to join
the overlay,li= ke tree or =C2=A0 =C2=A0mesh;
=C2=A0 =C2=A0 =C2=A02)Head Node/Tracker Communication is a component each p= eer
continually to get peer list or peer info report to the tracker or h= ead
node.
=C2=A0 =C2=A0 =C2=A03)Neighbor Communication is a component= that peers exchange bitmap or
other neigbor availability information for loop avoidance(in tree).
=C2= =A0 =C2=A0 =C2=A04)Bootstrap is a component to introduce a newly joined nod= e to get
the tracker or head node information.It keeps monitoring the tr= ackers and
head nodes.
3)Information layer is a layer that nodes register to the sy= stem,publish
their contents,report their useful inforamation beyond thos= e in the peer
tracker reporting for peer selection and give statistics t= o the
trackers.The tracker itself also use statistic and report module for global=
control in upload bandwidth consumption,overhead consumption and other<= br>regards.
4)Play-out layer is a layer to control the action of the med= ia brower.RTSP
is in this scope.
5)Application layer is the top layer in the ISO/OSI mo= del,where PPSP
application exists.

We are planning to add this pa= rt in the Problem statement draft.Any
comments are welcome.

=C2= =A0 =C2=A0 =C2=A0 =C2=A0BR

=C2=A0 =C2=A0 =C2=A0yunfei
=C2=A0 =C2=A02009-06-23

__________= _____________________________________
ppsp mailing list
ppsp@ietf.org
https://www.ietf.o= rg/mailman/listinfo/ppsp

_______________________________________________
ppsp mailing listppsp@ietf.org
http= s://www.ietf.org/mailman/listinfo/ppsp




--
Alex Kyungho KIM
LG Electronics.
S= enior Research Engineer
E-mail =C2=A0: zesus@lge.com
Office =C2=A0: +82 =C2=A0 2 2102 011= 1
Mobile : +82 10 7917 0406
FAX =C2=A0 =C2=A0 : +82 =C2=A0 2 2102 0140
DTV Research Laboratory, LG E= lectronics.
Seoul University Research Park
San 4-1, BongCheon 7-Dong =
KwanAk-Gu,Seoul, 151-919
The Republic of Korea.


_______________________________________________
ppsp mailing list
ppsp@ietf.org
= ht= tps://www.ietf.org/mailman/listinfo/ppsp


=

--
Alex Kyungho KIM
LG Electronics.
Senior Researc= h Engineer
E-mail =C2=A0: zesus@lge.com=
Office =C2=A0: +82 =C2=A0 2 2102 0111
Mobile : +82 10 7917 0406<= br>FAX =C2=A0 =C2=A0 : +82 =C2=A0 2 2102 0140
DTV Research Laboratory, LG Electronics.
Seoul University Research Park<= br>San 4-1, BongCheon 7-Dong
KwanAk-Gu,Seoul, 151-919
The Republic = of Korea.
--000e0cd179fc6bff7f046d0462c6-- From softgear@etri.re.kr Tue Jun 23 07:31:12 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3FB783A69C2 for ; Tue, 23 Jun 2009 07:31:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.829 X-Spam-Level: * X-Spam-Status: No, score=1.829 tagged_above=-999 required=5 tests=[AWL=-0.079, BAYES_20=-0.74, HELO_MISMATCH_INFO=1.448, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rC9X21xKvBG9 for ; Tue, 23 Jun 2009 07:31:11 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id BC34C3A6B13 for ; Tue, 23 Jun 2009 07:31:10 -0700 (PDT) Received: from SOFTGEAR ([129.254.232.20]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Tue, 23 Jun 2009 23:31:25 +0900 From: "Softgear Ko" To: "'zhangyunfei'" , References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com> In-Reply-To: <200906231831304538608@chinamobile.com> Date: Tue, 23 Jun 2009 23:31:45 +0900 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acnz7dALDsLSMUTkQoGKCjfXP7tCPAAIQNJw Content-Language: ko X-OriginalArrivalTime: 23 Jun 2009 14:31:25.0879 (UTC) FILETIME=[49EDFC70:01C9F40F] Subject: Re: [ppsp] ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2009 14:31:12 -0000 Hello, Yunfei. What about this figure ? I think this would be better than Figure 2 in = the problem statement draft. This figure describes how P2PSIP process well. Of course, We have to = modify some sentences in Sec 4.2.1 as replacing the figure. Alice (5678) | +----------------------+ | FetchReq(Alice) | | |----------------->| P2PSIP DHT overlay | | FetchAns(1234) | (RELOAD) | |<-----------------| | | | | Bob | AppAttach(1234) | | (1234) |----------------->| -- -- -- -- -- -- -- | --------> | |<-----------------| -- -- -- -- -- -- -- | <-------- | | +----------------------+ | | | | <------------------ ICE Checks -----------------> | | INVITE -----------------------------------------> | - Softgear Ko ________________________________________ From: zhangyunfei [mailto:zhangyunfei@chinamobile.com]=20 Sent: Tuesday, June 23, 2009 7:32 PM To: Softgear Ko; ppsp@ietf.org Subject: Re: RE: [ppsp] ppsp charter and problem statement draft Hi Softgear, Thanks for your comments.Please see inline about the reply. =20 Best regards, Yunfei =20 ________________________________________ zhangyunfei 2009-06-23 ________________________________________ =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Softgear Ko =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-22 19:50:10 =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A 'zhangyunfei'; ppsp@ietf.org =E6=8A=84=E9=80=81=EF=BC=9A=20 =E4=B8=BB=E9=A2=98=EF=BC=9A RE: [ppsp] ppsp charter and problem = statement draft =20 Hello, Yunfei. =20 I have some comments.=20 =20 In 3.4 In korea, the mobilTV subscriber is 17 million. =E2=80=93 May I get a = reference or document about this? I have never heard about this. I read the report of Mobile TV-Tuning in or Switching off from Arthur D = Little about this figure. You can visit = http://www.adl.com/reports.html?view=3D366 to download the report. =20 In 4.2.1, I don=E2=80=99t understand that Figure 2 P2PSIP process. We need update = it and explain some more. =20 This figure is to tell the routing process of P2PSIP.Do you have some = suggestions on amending this? =20 About NAT traversal in RELOAD, TURN server usage for RELOAD in P2PSIP = is not proximity aware. It means peer get a TURN server randomly in the = whole Internet. It may be far from the requesting peer. Therefore, we = can=E2=80=99t reuse it directly. I agree with you.So we can involve it in PPSP protocol if people in the = mailing list think there are some extra protocols we need to define. =20 As you mentioned, we focus on live streaming. I think pure live = streaming has no buffer for other(child in tree). But, according to the = draft, peer exchange bitmap. This means each peer (which is a parent or = child) must have buffer for other peer. If peer have buffer and other = peer use it, the delivered data has more latency. This is not a pure = live streaming. Therefore, there is two types of live streaming = =E2=80=93 pure live streaming and buffered live streaming. I think we = focus on buffered live streaming than pure live streaming. But I think = we need discuss whether we focus on pure live streaming. =20 We need to update the text to make it more clear.Bascailly there are two = kinds of solutions in live streaming,push based (tree based) and pull = based(mesh based). In the latter, there is no doubt that peer cache = exist. Even in pure tree-based streaming, as I propose in the latest = PPSP component architecture, there are some communcations between = neigbor peers to avoid loop.So peer exchange exists both in tree based = or mesh based solutions. We may update the text to make it more clear. There are some options for PPSP as you mentioned.One is to choose one as = the baseline and the other is to involve both. We think both = possibilities exist.I agree with you that we need more disscussion on = this. =20 =20 In 8, Where can I get [MobileTV] ? You can visit http://www.adl.com/reports.html?view=3D366 to download the = report. =20 Additionally, I think, we have to place emphasis on flash crowd = situation of P2P IPTV service. PPSP should solve flash crowd in the term of scalability.Besides = interoperabilty is aslo what we need, esp in the case where different = edge infrastructure can offer p2p streaming services. =20 Best regards, =20 - Softgear Ko =20 =20 From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of = zhangyunfei Sent: Wednesday, May 27, 2009 8:07 PM To: ppsp@ietf.org Subject: [ppsp] ppsp charter and problem statement draft =20 Dear all, Attached is the initial version of ppsp charter.I've also submitted = a new version of PPSP problem statement draft to IETF website in the = following = link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-statem= ent-03.txt) .Any comments and suggestions are highly welcome. The abstract is as follows: We propose to develop an open peer-to-peer (P2P) streaming protocol = named PPSP. This document describes the problems related to PPSP and = outlines considerations that have to be taken in account when arriving = at equitable solutions. =20 Yunfei Best regards! Sincerely yours, Yunfei=20 2009-05-27 ***************************************************** Yunfei Zhang, Ph.D. R&D, CHINA MOBILE COMMUNICATIONS CORPORATION Tel: +86 10 158016966688 ext. 3247 Fax: +86 10 63601087 MOBILE: 1360-1032-119 ***************************************************** =20 =20 ________________________________________ zhangyunfei 2009-05-27 From softgear@etri.re.kr Tue Jun 23 17:47:06 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2BB7E28C0F8 for ; Tue, 23 Jun 2009 17:47:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.855 X-Spam-Level: * X-Spam-Status: No, score=1.855 tagged_above=-999 required=5 tests=[AWL=-0.053, BAYES_20=-0.74, HELO_MISMATCH_INFO=1.448, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lUsc9Qt2aqqx for ; Tue, 23 Jun 2009 17:47:05 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 89B2D3A68AC for ; Tue, 23 Jun 2009 17:47:04 -0700 (PDT) Received: from SOFTGEAR ([129.254.232.20]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Wed, 24 Jun 2009 09:47:19 +0900 From: "Softgear Ko" To: "'zhangyunfei'" , References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com> In-Reply-To: Date: Wed, 24 Jun 2009 09:47:19 +0900 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 thread-index: Acnz7dALDsLSMUTkQoGKCjfXP7tCPAAIQNJwABWRiIA= Content-Language: ko X-OriginalArrivalTime: 24 Jun 2009 00:47:19.0747 (UTC) FILETIME=[5426C130:01C9F465] Subject: Re: [ppsp] ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Jun 2009 00:47:06 -0000 Hello Yunfei. Oh, There was some errors. I fixed it as the following figure. Alice Bob (5678) (1234) =20 | +----------------------+ | | FetchReq(Bob) | | | |----------------->| P2PSIP DHT overlay | | | FetchAns(1234) | (RELOAD) | | |<-----------------| | | | | | | | AppAttach(1234) | | | |----------------->| -- -- -- -- -- -- -- | --------> | | AppAttach(5678) | | | |<-----------------| -- -- -- -- -- -- -- | <-------- | | +----------------------+ | | | | <------------------ ICE Checks -----------------> | | INVITE -----------------------------------------> | | | -----Original Message----- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of = Softgear Ko Sent: Tuesday, June 23, 2009 11:32 PM To: 'zhangyunfei'; ppsp@ietf.org Subject: Re: [ppsp] ppsp charter and problem statement draft Hello, Yunfei. What about this figure ? I think this would be better than Figure 2 in = the problem statement draft. This figure describes how P2PSIP process well. Of course, We have to = modify some sentences in Sec 4.2.1 as replacing the figure. Alice (5678) | +----------------------+ | FetchReq(Alice) | | |----------------->| P2PSIP DHT overlay | | FetchAns(1234) | (RELOAD) | |<-----------------| | | | | Bob | AppAttach(1234) | | (1234) |----------------->| -- -- -- -- -- -- -- | --------> | |<-----------------| -- -- -- -- -- -- -- | <-------- | | +----------------------+ | | | | <------------------ ICE Checks -----------------> | | INVITE -----------------------------------------> | - Softgear Ko ________________________________________ From: zhangyunfei [mailto:zhangyunfei@chinamobile.com]=20 Sent: Tuesday, June 23, 2009 7:32 PM To: Softgear Ko; ppsp@ietf.org Subject: Re: RE: [ppsp] ppsp charter and problem statement draft Hi Softgear, Thanks for your comments.Please see inline about the reply. =20 Best regards, Yunfei =20 ________________________________________ zhangyunfei 2009-06-23 ________________________________________ =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Softgear Ko =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-22 19:50:10 =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A 'zhangyunfei'; ppsp@ietf.org =E6=8A=84=E9=80=81=EF=BC=9A=20 =E4=B8=BB=E9=A2=98=EF=BC=9A RE: [ppsp] ppsp charter and problem = statement draft =20 Hello, Yunfei. =20 I have some comments.=20 =20 In 3.4 In korea, the mobilTV subscriber is 17 million. =E2=80=93 May I get a = reference or document about this? I have never heard about this. I read the report of Mobile TV-Tuning in or Switching off from Arthur D = Little about this figure. You can visit = http://www.adl.com/reports.html?view=3D366 to download the report. =20 In 4.2.1, I don=E2=80=99t understand that Figure 2 P2PSIP process. We need update = it and explain some more. =20 This figure is to tell the routing process of P2PSIP.Do you have some = suggestions on amending this? =20 About NAT traversal in RELOAD, TURN server usage for RELOAD in P2PSIP = is not proximity aware. It means peer get a TURN server randomly in the = whole Internet. It may be far from the requesting peer. Therefore, we = can=E2=80=99t reuse it directly. I agree with you.So we can involve it in PPSP protocol if people in the = mailing list think there are some extra protocols we need to define. =20 As you mentioned, we focus on live streaming. I think pure live = streaming has no buffer for other(child in tree). But, according to the = draft, peer exchange bitmap. This means each peer (which is a parent or = child) must have buffer for other peer. If peer have buffer and other = peer use it, the delivered data has more latency. This is not a pure = live streaming. Therefore, there is two types of live streaming = =E2=80=93 pure live streaming and buffered live streaming. I think we = focus on buffered live streaming than pure live streaming. But I think = we need discuss whether we focus on pure live streaming. =20 We need to update the text to make it more clear.Bascailly there are two = kinds of solutions in live streaming,push based (tree based) and pull = based(mesh based). In the latter, there is no doubt that peer cache = exist. Even in pure tree-based streaming, as I propose in the latest = PPSP component architecture, there are some communcations between = neigbor peers to avoid loop.So peer exchange exists both in tree based = or mesh based solutions. We may update the text to make it more clear. There are some options for PPSP as you mentioned.One is to choose one as = the baseline and the other is to involve both. We think both = possibilities exist.I agree with you that we need more disscussion on = this. =20 =20 In 8, Where can I get [MobileTV] ? You can visit http://www.adl.com/reports.html?view=3D366 to download the = report. =20 Additionally, I think, we have to place emphasis on flash crowd = situation of P2P IPTV service. PPSP should solve flash crowd in the term of scalability.Besides = interoperabilty is aslo what we need, esp in the case where different = edge infrastructure can offer p2p streaming services. =20 Best regards, =20 - Softgear Ko =20 =20 From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of = zhangyunfei Sent: Wednesday, May 27, 2009 8:07 PM To: ppsp@ietf.org Subject: [ppsp] ppsp charter and problem statement draft =20 Dear all, Attached is the initial version of ppsp charter.I've also submitted = a new version of PPSP problem statement draft to IETF website in the = following = link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-statem= ent-03.txt) .Any comments and suggestions are highly welcome. The abstract is as follows: We propose to develop an open peer-to-peer (P2P) streaming protocol = named PPSP. This document describes the problems related to PPSP and = outlines considerations that have to be taken in account when arriving = at equitable solutions. =20 Yunfei Best regards! Sincerely yours, Yunfei=20 2009-05-27 ***************************************************** Yunfei Zhang, Ph.D. R&D, CHINA MOBILE COMMUNICATIONS CORPORATION Tel: +86 10 158016966688 ext. 3247 Fax: +86 10 63601087 MOBILE: 1360-1032-119 ***************************************************** =20 =20 ________________________________________ zhangyunfei 2009-05-27 _______________________________________________ ppsp mailing list ppsp@ietf.org https://www.ietf.org/mailman/listinfo/ppsp From zhangyunfei@chinamobile.com Thu Jun 25 05:10:16 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3AD6F28C195 for ; Thu, 25 Jun 2009 05:10:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.424 X-Spam-Level: X-Spam-Status: No, score=-95.424 tagged_above=-999 required=5 tests=[AWL=0.149, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_43=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MQYP-HoVO+xf for ; Thu, 25 Jun 2009 05:10:15 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id BD22D3A6D9F for ; Thu, 25 Jun 2009 05:10:14 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062516111309-13294 ; Thu, 25 Jun 2009 16:11:13 +0800 Date: Thu, 25 Jun 2009 16:11:06 +0800 From: "zhangyunfei" To: "Softgear Ko" , "ppsp@ietf.org" References: Message-ID: <200906251611059844584@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-25 16:11:13, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-25 20:10:32, Serialize complete at 2009-06-25 20:10:32 Content-Type: multipart/alternative; boundary="=====003_Dragon258117316188_=====" Subject: Re: [ppsp] Business model of PPSP X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Jun 2009 12:10:16 -0000 This is a multi-part message in MIME format. --=====003_Dragon258117316188_===== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gb2312" SGksDQogICBJIHRoaW5rIFNvZnRnZWFyJ3MgaW5wdXQgaXMgdmVyeSBpbnN0cnVjdGl2ZSBmb3Ig Y29uc29saWRhdGluZyB0aGUgZm91bmRhdGlvbiBvZiBQUFNQLGVzcCBob3cgdG8gdXNlIHRoZSBj b21wb25lbnRzIHRvIHJlYWxpemUgdGhlc2UgcmVxdWlyZW1lbnRzLg0KICAgSSBzdWdnZXN0IHRv IGhhdmUgYSB1c2UgY2FzZSBkcmFmdCB0byBkaXNjdXNzIHJlbGF0ZWQgaXNzdWVzLkhvd2V2ZXIg 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with ESMTP id 35FDC28C197 for ; Thu, 25 Jun 2009 05:10:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.146 X-Spam-Level: X-Spam-Status: No, score=-95.146 tagged_above=-999 required=5 tests=[AWL=-0.172, BAYES_00=-2.599, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EXA-P+DkbnBj for ; Thu, 25 Jun 2009 05:10:15 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 86DC63A6DC2 for ; Thu, 25 Jun 2009 05:10:15 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062517173801-16027 ; Thu, 25 Jun 2009 17:17:38 +0800 Date: Thu, 25 Jun 2009 17:17:31 +0800 From: "zhangyunfei" To: 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MDA5LTA1LTI3DQoqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioq KioqKioqKg0KWXVuZmVpICBaaGFuZywgIFBoLkQuDQpSJkQsICBDSElOQSAgTU9CSUxFICBDT01N VU5JQ0FUSU9OUyAgQ09SUE9SQVRJT04NClRlbDogICs4NiAgMTAgIDE1ODAxNjk2NjY4OCAgZXh0 LiAgMzI0Nw0KRmF4OiAgKzg2ICAxMCAgNjM2MDEwODcNCk1PQklMRTogIDEzNjAtMTAzMi0xMTkN CioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqDQoN Cg0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0Kemhhbmd5dW5mZWkN CjIwMDktMDUtMjcNCg0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18NCnBwc3AgIG1haWxpbmcgIGxpc3QNCnBwc3BAaWV0Zi5vcmcNCmh0dHBzOi8vd3d3Lmll dGYub3JnL21haWxtYW4vbGlzdGluZm8vcHBzcA0K From zhangyunfei@chinamobile.com Thu Jun 25 05:10:18 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 51D5F28C19E for ; Thu, 25 Jun 2009 05:10:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.124 X-Spam-Level: X-Spam-Status: No, score=-95.124 tagged_above=-999 required=5 tests=[AWL=-0.151, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id S1KqyVl9WLFJ for ; Thu, 25 Jun 2009 05:10:16 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 21FCC28C190 for ; Thu, 25 Jun 2009 05:10:16 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062517285720-16384 ; Thu, 25 Jun 2009 17:28:57 +0800 Date: Thu, 25 Jun 2009 17:28:50 +0800 From: "zhangyunfei" To: "ppsp@ietf.org" References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com> 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Hi,Softgear,
     Thanks  for  your  contribution.Is =  it  more  clear  if  we  can  replace=20  P2PSIP  DHT  overlay  part  by  the=20  orginial  figure2  to  stress  two  routing =  procedure(recursive  and  iterative  routing)  of= =20  P2PSIP  as  follows?
   (5678)
     |              = =20                    =20  +------------------------+
     |              = =20                      = ;|=20      P2PSIP  DHT  overlay      |
     |              = =20                      = ;|=20                (RELOAD)   &nbs= p;=20            |
     |    FetchReq(Alice)  |   &nbs= p;=20      +---------------+    |
     |----------------- >|---- >|     &= nbsp;=20      Peer          |  =20  |
     |              = =20                      = ;|=20    +--|                 &= nbsp;=20            |    |
     |              = =20                      = ;|=20    |    +---------------+    |
     |              = =20                      = ;|=20    |          ^       &nb= sp;=20          ^          |
     |              = =20                      = ;|=20    |        1|2         &= nbsp;=20    3|4        |
     |              = =20                      = ;|=20    |          V       &nb= sp;=20          V          |
     |              = =20                      = ;|=20    |      +----+      +----+  = =20    |
     |              = =20                      = ;|=20    |      |Peer|      |Peer|  = =20    |
     |              = =20                      = ;|=20    |      +----+      +----+  = =20    |
     |    FetchAns(1234)    |  = ;=20  |                   &nbs= p;=20                    =20  |
     | <-----------------| <-+     &nbs= p;=20                      = ;=20              |
     |              = =20                      = ;|=20                      = ;=20                      = ;=20    |                 &nbs= p;=20  Bob
     |  AppAttach(1234)    |   &nbs= p;=20                      = ;=20                      = ;|=20                (1234)
     |----------------- >|  --  --  -= -=20  --  --  --  --  --|  -------- >  |
     | <-----------------|  --  --  -= -=20  --  --  --  --  --|   <--------  |
     |              = =20                    =20  +------------------------+             =          |
     |              = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20        |
     |   <------------------  ICE  Ch= ecks=20  ------------------- >      |
     |    INVITE=20  ------------------------------------------- >    |
 
 
   (5678)
     |              = =20                    =20  +------------------------+
     |              = =20                      = ;|=20      P2PSIP  DHT  overlay      |
     |              = =20                      = ;|=20                (RELOAD)   &nbs= p;=20            |
     |    FetchReq(Alice)  |   &nbs= p;=20      +---------------+    |
     |----------------- >|---- >|     &= nbsp;=20      Peer          |  =20  |
     |              = =20                      = ;|=20    +--|                 &= nbsp;=20            |    |
     |              = =20                      = ;|=20    |    +---------------+    |
     |              = =20                      = ;|=20    |          |       &nb= sp;=20          |          |
     |              = =20                      = ;|=20    |        1|         &n= bsp;=20        |3        |
     |              = =20                      = ;|=20    |          V       &nb= sp;=20          V          |
     |              = =20                      = ;|=20    |      +----+  2  +----+    = ;=20  |
     |              = =20                      = ;|=20    |      |Peer|-- >|Peer|    =20  |
     |              = =20                      = ;|=20    |      +----+      +----+  = =20    |
     |    FetchAns(1234)    |  = ;=20  |                   &nbs= p;=20                    =20  |
     | <-----------------| <-+     &nbs= p;=20                      = ;=20              |
     |              = =20                      = ;|=20                      = ;=20                      = ;=20    |                 &nbs= p;=20  Bob
     |  AppAttach(1234)    |   &nbs= p;=20                      = ;=20                      = ;|=20                (1234)
     |----------------- >|  --  --  -= -=20  --  --  --  --  --|  -------- >  |
     | <-----------------|  --  --  -= -=20  --  --  --  --  --|   <--------  |
     |              = =20                    =20  +------------------------+             =          |
     |              = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20        |
     |   <------------------  ICE  Ch= ecks=20  ------------------- >      |
     |    INVITE=20  ------------------------------------------- >    |
 
 
 
                    =    BR
                    =      yunfei
2009-06-25
 
 
 
=B7=A2=BC=FE=C8=CB=A3=BA  Softgear  Ko
=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA  2009-06-24  08:47:25
=CA=D5=BC=FE=C8=CB=A3=BA  'zhangyunfei';  ppsp@ietf.org
=B3=AD=CB=CD=A3=BA  
=D6=F7=CC=E2=A3=BA  RE:  [ppsp]  ppsp  charter &nb= sp;and  problem=20  statement  draft
 
Hello    Yunfei.
 
Oh,    There    was    some  =20  errors.
I    fixed    it    as    the =    following    figure.
 
 
Alice                   &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  Bob
     (5678)             &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    (1234)= =20        
         |          = =20                      = ;=20                      = ;=20                =20  +----------------------+             &n= bsp;=20                      = ;=20        |
         |    FetchReq(Bob)   =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20              |       &nbs= p;=20                      = ;=20              |
         |-----------------   >| &nbs= p;=20      P2PSIP    DHT    overlay   &nb= sp;=20    |                 &nbs= p;=20                      = ;=20    |
         |    FetchAns(1234)  = =20          |           &nbs= p;=20        (RELOAD)           &nbs= p;=20                      = ;=20  |                   &nbs= p;=20                      = ;=20  |
         |   <-----------------| &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                    | &nbs= p;=20                      = ;=20                    |
         |          = =20                      = ;=20                      = ;=20                  |   &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                  |   &nbs= p;=20                      = ;=20                  |
         |    AppAttach(1234)  = ;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20      |               &nbs= p;=20                      = ;=20      |
         |-----------------   >| &nbs= p;=20  --    --    --    --    -- &n= bsp;=20  --    --    |    --------   > &= nbsp;=20  |
         |    AppAttach(5678)  = ;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20      |               &nbs= p;=20                      = ;=20      |
         |   <-----------------| &nbs= p;=20  --    --    --    --    -- &n= bsp;=20  --    --    |       <-------- &= nbsp;=20  |
         |          = =20                      = ;=20                      = ;=20                =20  +----------------------+             &n= bsp;=20                      = ;=20        |
         |          = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
         |      =20 <------------------    ICE    Checks  =20  -----------------   >          =20  |
         |        INVITE =    -----------------------------------------   >   &= nbsp;=20    |
         |          = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
 
 
 
-----Original    Message-----
From:    ppsp-bounces@ietf.org  =20  [mailto:ppsp-bounces@ietf.org]    On    Behalf &n= bsp;=20  Of    Softgear    Ko
Sent:    Tuesday,    June    23,   =  2009    11:32    PM
To:    'zhangyunfei';    ppsp@ietf.org
Subject:    Re:    [ppsp]    ppsp  = =20  charter    and    problem    statement =    draft
 
Hello,    Yunfei.
 
 
What    about    this    figure  =20  ?    I    think    this    wo= uld=20    be    better    than    Figure &= nbsp;=20  2    in    the    problem  =20  statement    draft.
This    figure    describes    how  = ;=20  P2PSIP    process    well.    Of  = =20  course,    We    have    to  =20  modify    some    sentences    in  = ;=20  Sec    4.2.1    as    replacing   =  the    figure.
 
 
     Alice
     (5678)
         |          = =20                      = ;=20                      = ;=20                =20  +----------------------+
         |    FetchReq(Alice)  = ;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20      |
         |-----------------   >| &nbs= p;=20      P2PSIP    DHT    overlay   &nb= sp;=20    |
         |    FetchAns(1234)  = =20          |           &nbs= p;=20        (RELOAD)           &nbs= p;=20                      = ;=20  |
         |   <-----------------| &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                    |
         |          = =20                      = ;=20                      = ;=20                  |   &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                  |   &nbs= p;=20                      = ;=20              Bob
         |    AppAttach(1234)  = ;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20      |               &nbs= p;=20                (1234)
         |-----------------   >| &nbs= p;=20  --    --    --    --    -- &n= bsp;=20  --    --    |    --------   > &= nbsp;=20  |
         |   <-----------------| &nbs= p;=20  --    --    --    --    -- &n= bsp;=20  --    --    |       <-------- &= nbsp;=20  |
         |          = =20                      = ;=20                      = ;=20                =20  +----------------------+             &n= bsp;=20                      = ;=20        |
         |          = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
         |      =20 <------------------    ICE    Checks  =20  -----------------   >          =20  |
         |        INVITE =    -----------------------------------------   >   &= nbsp;=20    |
 
 
 
-    Softgear    Ko
 
 
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
From:    zhangyunfei  =20  [mailto:zhangyunfei@chinamobile.com]    
Sent:    Tuesday,    June    23,   =  2009    7:32    PM
To:    Softgear    Ko;    ppsp@ietf.org<= /DIV>
Subject:    Re:    RE:    [ppsp]   =  ppsp    charter    and    problem  = ;=20  statement    draft
 
Hi    Softgear,
     Thanks    for    your  =20  comments.Please    see    inline    abo= ut=20    the    reply.
 
                    =                      = ;=20        Best    regards,
                    =                      = ;=20                      = ;=20  Yunfei
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
zhangyunfei
2009-06-23
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=B7=A2=BC=FE=C8=CB=A3=BA    Softgear    Ko
=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA    2009-06-22    19= :50:10
=CA=D5=BC=FE=C8=CB=A3=BA    'zhangyunfei';    ppsp= @ietf.org
=B3=AD=CB=CD=A3=BA    
=D6=F7=CC=E2=A3=BA    RE:    [ppsp]    p= psp  =20  charter    and    problem    statement =    draft
 
Hello,    Yunfei.
 
I    have    some    comments.  =20  
 
In    3.4
 In    korea,    the    mobilTV &nb= sp;=20  subscriber    is    17    million. &nbs= p;=20      =A8C    May    I    get &= nbsp;=20  a    reference    or    document  = =20  about    this?        I    ha= ve=20    never    heard    about  =20  this.
I    read    the    report    = of=20    Mobile    TV-Tuning    in    or =    Switching    off    from    Arth= ur=20    D    Little    about    this &nb= sp;=20  figure.    You    can    visit  =20  http://www.adl.com/repo= rts.html?view=3D366=20    to    download    the  =20  report.
 
In    4.2.1,
 I    don=A1=AFt    understand    t= hat  =20  Figure    2    P2PSIP    process.  = ;=20  We    need    update    it    = ;and=20    explain    some    more.
     
 This    figure    is    to   =  tell    the    routing    process  = ;=20  of    P2PSIP.Do    you    have  =20  some    suggestions    on    amending &= nbsp;=20  this?
     
 About    NAT    traversal     &nbs= p;=20  in    RELOAD,    TURN    server   =  usage    for    RELOAD    in  =20  P2PSIP    is    not    proximity  = =20  aware.    It    means    peer  =20  get    a    TURN    server  =20  randomly    in    the    whole  =20  Internet.    It    may    be  =20  far    from    the    requesting  = =20  peer.    Therefore,    we    can=A1=AFt=  =20  reuse    it    directly.
 I    agree    with    you.So  = ;=20  we    can    involve    it    = ;in=20    PPSP    protocol    if    people= =20    in    the    mailing    list &nb= sp;=20  think    there    are    some  =20  extra    protocols    we    need  = =20  to    define.
 
As    you    mentioned,    we  =20  focus    on    live    streaming.  = ;=20      I    think    pure    liv= e=20    streaming    has    no    buffer= =20    for    other(child    in    tree= ).=20    But,    according    to    the &= nbsp;=20  draft,    peer    exchange    bitmap. &= nbsp;=20  This    means    each    peer  =20  (which    is    a    parent   &nbs= p;or=20    child)    must    have    buffer= =20    for    other    peer.    If &nbs= p;=20  peer    have    buffer    and  =20  other    peer    use    it,   &nbs= p;the=20    delivered    data    has    more= =20    latency.    This    is    not &n= bsp;=20  a    pure    live    streaming.   =  Therefore,    there    is    two  = =20  types    of    live    streaming  = =20  =A8C    pure    live    streaming  = ;=20  and    buffered    live    streaming. &= nbsp;=20  I    think    we    focus    = on=20    buffered    live    streaming    = ;than=20    pure    live    streaming.    Bu= t=20    I    think    we    need   =  discuss    whether    we    focus  = ;=20  on    pure    live    streaming.
 
We    need    to    update    = the=20    text    to    make    it   =  more    clear.Bascailly    there    are= =20    two    kinds    of    solutions =    in    live    streaming,push    = based=20    (tree    based)    and    pull &= nbsp;=20  based(mesh    based).    In    the &nbs= p;=20  latter,    there    is    no  =20  doubt    that    peer    cache  =20  exist.    Even    in    pure  =20  tree-based    streaming,    as    I &nb= sp;=20  propose    in    the    latest  =20  PPSP    component    architecture,    t= here=20    are    some    communcations  =20  between    neigbor    peers    to  = ;=20  avoid    loop.So    peer    exchange &n= bsp;=20  exists    both    in    tree  =20  based    or    mesh    based  =20  solutions.    We    may    update  = ;=20  the    text    to    make    = it=20    more    clear.
There    are    some    options  =20  for    PPSP    as    you  =20  mentioned.One    is    to    choose &nb= sp;=20  one    as    the    baseline  =20  and    the    other    is    = to=20    involve    both.    We    think =    both    possibilities    exist.I  =20  agree    with    you    that   &nb= sp;we=20    need    more    disscussion    o= n=20    this.
 
 
In    8,
Where    can    I    get  =20  [MobileTV]    ?
You    can    visit    http://www.adl.com/repo= rts.html?view=3D366=20    to    download    the  =20  report.
 
Additionally,    I    think,    we  = ;=20  have    to    place    emphasis   =  on    flash    crowd    situation  = ;=20  of    P2P    IPTV    service.
PPSP    should    solve    flash   =  crowd    in    the    term    = ;of=20    scalability.Besides    interoperabilty    = is=20    aslo    what    we    need, &nbs= p;=20  esp    in    the    case    w= here=20    different    edge    infrastructure  = =20  can    offer    p2p    streaming  = =20  services.
 
Best    regards,
 
-                    = ;=20    Softgear    Ko
 
 
From:    ppsp-bounces@ietf.org  =20  [mailto:ppsp-bounces@ietf.org]    On    Behalf &n= bsp;=20  Of    zhangyunfei
Sent:    Wednesday,    May    27,  = =20  2009    8:07    PM
To:    ppsp@ietf.org
Subject:    [ppsp]    ppsp    charter &n= bsp;=20  and    problem    statement    draft
 
Dear    all,
             Attached    = is=20    the    initial    version    of =    ppsp    charter.I've    also  =20  submitted    a    new    version  = =20  of    PPSP    problem    statement &nbs= p;=20  draft    to    IETF    website  =20  in    the    following    link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-s= tatement-03.txt)=20    .Any    comments    and  =20  suggestions    are    highly  =20  welcome.
                    =      The    abstract    is    = as=20    follows:
We    propose    to    develop  =20  an    open    peer-to-peer    (P2P) &nb= sp;=20  streaming    protocol    named    PPSP.= =20    This    document    describes    = ;the=20    problems    related    to    PPS= P=20    and    outlines    considerations  =20  that    have    to    be    t= aken=20    in    account    when    arrivin= g=20    at    equitable    solutions.
 
Yunfei
     Best    regards!
     Sincerely    yours,
                    =  Yunfei    
                    =      2009-05-27
*****************************************************
Yunfei    Zhang,    Ph.D.
R&D,    CHINA    MOBILE    COMMUNICA= TIONS=20    CORPORATION
Tel:    +86    10    158016966688  = =20  ext.    3247
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=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
zhangyunfei
2009-05-27
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
ppsp    mailing    list
ppsp@ietf.org
https://www.ietf.org/mailman/listinfo/ppsp
--=====003_Dragon445106644523_=====-- From zhangyunfei@chinamobile.com Thu Jun 25 05:10:18 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 89A7628C190 for ; Thu, 25 Jun 2009 05:10:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.407 X-Spam-Level: X-Spam-Status: No, score=-95.407 tagged_above=-999 required=5 tests=[AWL=0.166, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_43=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VdAa2d5ulG5n for ; Thu, 25 Jun 2009 05:10:17 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id BE2F328C195 for ; Thu, 25 Jun 2009 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Ij48U1BBTiBzdHlsZT0ibXNvLWxpc3Q6IElnbm9yZSI+LTxTUEFOIA0Kc3R5bGU9IkZPTlQ6IDdw dCAnVGltZXMgTmV3IFJvbWFuJyI+Jm5ic3A7Jm5ic3A7Jm5ic3A7Jm5ic3A7Jm5ic3A7IA0KPC9T UEFOPjwvU1BBTj48L1NQQU4+PCFbZW5kaWZdPjxTUEFOIGxhbmc9RU4tVVMgDQpzdHlsZT0iRk9O VC1GQU1JTFk6IEd1bGltIj5Tb2Z0Z2VhciBLbzxvOnA+PC9vOnA+PC9TUEFOPjwvUD4NCjxQIGNs YXNzPU1zb05vcm1hbD48U1BBTiBsYW5nPUVOLVVTIA0Kc3R5bGU9IkZPTlQtRkFNSUxZOiBHdWxp bSI+PG86cD4mbmJzcDs8L286cD48L1NQQU4+PC9QPjwvRElWPjwvRk9OVD48L0RJVj48L0ZPTlQ+ PC9ESVY+PC9CT0RZPjwvSFRNTD4NCg== --=====003_Dragon151021453166_=====-- From zhangyunfei@chinamobile.com Thu Jun 25 05:10:20 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5133A28C1AA for ; Thu, 25 Jun 2009 05:10:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -93.024 X-Spam-Level: X-Spam-Status: No, score=-93.024 tagged_above=-999 required=5 tests=[AWL=-2.251, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_32=0.6, J_CHICKENPOX_33=0.6, J_CHICKENPOX_42=0.6, J_CHICKENPOX_45=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_63=0.6, J_CHICKENPOX_64=0.6, J_CHICKENPOX_74=0.6, J_CHICKENPOX_92=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7VNU3XMIIfH8 for ; Thu, 25 Jun 2009 05:10:18 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id CA4A728C19A for ; Thu, 25 Jun 2009 05:10:17 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062517380727-16664 ; Thu, 25 Jun 2009 17:38:07 +0800 Date: Thu, 25 Jun 2009 17:38:00 +0800 From: "zhangyunfei" To: "Alex Kyungho KIM" , "osh93@etri.re.kr" , "ppsp@ietf.org" References: <200906231801203126019@chinamobile.com><008101c9f3f7$6ae08320$40 a18960$@re.kr><600459950906230616u247f8cb7p6a47991cb17c223b@mail.gmail.com><008e01c9f405$eade2290$c09a67b0$@re.kr> <600459950906230658j2474b5dbi11b0aa3f72cb2803@mail.gmail.com> Message-ID: <200906251738001565595@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-25 17:38:07, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-25 20:10:36, Serialize complete at 2009-06-25 20:10:36 Content-Type: multipart/alternative; boundary="=====003_Dragon624301414011_=====" Subject: Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM*** 7.949 (5) RE:initialproposal of PPSP component architecture X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: 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IDIgMjEwMiANCjAxNDA8QlI+RFRWIFJlc2VhcmNoIExhYm9yYXRvcnksIExHIEVsZWN0cm9uaWNz LjxCUj5TZW91bCBVbml2ZXJzaXR5IFJlc2VhcmNoIA0KUGFyazxCUj5TYW4gNC0xLCBCb25nQ2hl b24gNy1Eb25nIDxCUj5Ld2FuQWstR3UsU2VvdWwsIDE1MS05MTkgPEJSPlRoZSBSZXB1YmxpYyAN Cm9mIEtvcmVhLjxCUj48L0ZPTlQ+PC9ESVY+PC9CT0RZPjwvSFRNTD4NCg== --=====003_Dragon624301414011_=====-- From softgear@etri.re.kr Thu Jun 25 19:15:35 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E045A3A69EC for ; Thu, 25 Jun 2009 19:15:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.707 X-Spam-Level: * X-Spam-Status: No, score=1.707 tagged_above=-999 required=5 tests=[AWL=1.658, BAYES_00=-2.599, HELO_MISMATCH_INFO=1.448, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 151qHF+GYmjf for ; Thu, 25 Jun 2009 19:15:34 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 0CDEB3A6845 for ; Thu, 25 Jun 2009 19:15:33 -0700 (PDT) Received: from softgearvaio ([129.254.1.8]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Fri, 26 Jun 2009 11:15:19 +0900 From: "SoftgearKo" To: "'zhangyunfei'" , References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com><200906251717310156888@chinamobile.com> <200906251728498281354@chinamobile.com> In-Reply-To: <200906251728498281354@chinamobile.com> Date: Fri, 26 Jun 2009 11:15:21 +0900 Message-ID: <067001c9f603$f55c9530$e015bf90$@re.kr> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acn1qCzfEdmVZj7wRCiehuNWZsXZOwAW0KAQ Content-Language: ko X-OriginalArrivalTime: 26 Jun 2009 02:15:19.0703 (UTC) FILETIME=[F4139A70:01C9F603] Subject: Re: [ppsp] Fw: Re: RE: ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 02:15:36 -0000 (I apologize if this email is duplicated.) Hello, yunfei. Your figure looks better. But, your figure is based on my first figure = which has some mistakes as I mentioned in second email. Please redraw it = with my second figure. Or, I'll redraw it on the next week because I'm = out of office in this week. (My web based emailer doesn't support a = plain text well.) In the iterative routing , the requester (alice) should send request = again after it receives first response from the first peer. In the recursive routing, the arrow #3 should be removed and the = response message should be go back to the requester through the reverse = path of the requesting path. Additionally, as I know, P2PSIP choosed the recursive routing as = default. I don't think that we need explain iterative routing in the = problem state draft. - Softgear Ko ------------------------- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of = zhangyunfei Sent: Thursday, June 25, 2009 6:29 PM To: ppsp@ietf.org Subject: [ppsp] Fw: Re: RE: ppsp charter and problem statement draft =20 Hi,Softgear, Thanks for your contribution.Is it more clear if we can = replace P2PSIP DHT overlay part by the orginial figure2 to = stress two routing procedure(recursive and iterative routing) of = P2PSIP as follows? (5678) | +------------------------+ | | P2PSIP DHT overlay = | | | (RELOAD) = | | FetchReq(Alice) | +---------------+ | |----------------- >|---- >| Peer | | | | +--| = | | | | | +---------------+ = | | | | ^ = ^ | | | | 1|2 = 3|4 | | | | V = V | | | | +----+ +----+ = | | | | |Peer| |Peer| = | | | | +----+ +----+ = | | FetchAns(1234) | | = | | <-----------------| <-+ = | | | = | Bob | AppAttach(1234) | = | (1234) |----------------- >| -- -- -- -- -- -- -- --| -------- > = | | <-----------------| -- -- -- -- -- -- -- --| <-------- = | | +------------------------+ = | | = | | <------------------ ICE Checks ------------------- > | | INVITE ------------------------------------------- > | =20 =20 (5678) | +------------------------+ | | P2PSIP DHT overlay = | | | (RELOAD) = | | FetchReq(Alice) | +---------------+ | |----------------- >|---- >| Peer | | | | +--| = | | | | | +---------------+ = | | | | | = | | | | | 1| = |3 | | | | V = V | | | | +----+ 2 +----+ = | | | | |Peer|-- >|Peer| = | | | | +----+ +----+ = | | FetchAns(1234) | | = | | <-----------------| <-+ = | | | = | Bob | AppAttach(1234) | = | (1234) |----------------- >| -- -- -- -- -- -- -- --| -------- > = | | <-----------------| -- -- -- -- -- -- -- --| <-------- = | | +------------------------+ = | | = | | <------------------ ICE Checks ------------------- > | | INVITE ------------------------------------------- > | =20 =20 =20 BR yunfei 2009-06-25 =20 =20 =20 =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Softgear Ko =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-24 08:47:25 =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A 'zhangyunfei'; ppsp@ietf.org =E6=8A=84=E9=80=81=EF=BC=9A =20 =E4=B8=BB=E9=A2=98=EF=BC=9A RE: [ppsp] ppsp charter and problem = statement draft =20 Hello Yunfei. =20 Oh, There was some errors. I fixed it as the following figure. =20 =20 Alice = = Bob (5678) = = (1234) =20 | = +----------------------+ = | | FetchReq(Bob) | = | = | |----------------- >| P2PSIP DHT overlay = | | | FetchAns(1234) | (RELOAD) = | = | | <-----------------| = | = | | = | = | | | AppAttach(1234) | = | = | |----------------- >| -- -- -- -- -- -- = -- | -------- > | | AppAttach(5678) | = | = | | <-----------------| -- -- -- -- -- -- = -- | <-------- | | = +----------------------+ = | | = = = | | <------------------ ICE Checks = ----------------- > | | INVITE ----------------------------------------- = > | | = = = | =20 =20 =20 -----Original Message----- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On = Behalf Of Softgear Ko Sent: Tuesday, June 23, 2009 11:32 PM To: 'zhangyunfei'; ppsp@ietf.org Subject: Re: [ppsp] ppsp charter and problem = statement draft =20 Hello, Yunfei. =20 =20 What about this figure ? I think this would = be better than Figure 2 in the problem statement = draft. This figure describes how P2PSIP process well. Of = course, We have to modify some sentences in Sec = 4.2.1 as replacing the figure. =20 =20 Alice (5678) | = +----------------------+ | FetchReq(Alice) | = | |----------------- >| P2PSIP DHT overlay = | | FetchAns(1234) | (RELOAD) = | | <-----------------| = | | = | = | Bob | AppAttach(1234) | = | = (1234) |----------------- >| -- -- -- -- -- -- = -- | -------- > | | <-----------------| -- -- -- -- -- -- = -- | <-------- | | = +----------------------+ = | | = = = | | <------------------ ICE Checks = ----------------- > | | INVITE ----------------------------------------- = > | =20 =20 =20 - Softgear Ko =20 =20 =20 ________________________________________ From: zhangyunfei [mailto:zhangyunfei@chinamobile.com] =20 Sent: Tuesday, June 23, 2009 7:32 PM To: Softgear Ko; ppsp@ietf.org Subject: Re: RE: [ppsp] ppsp charter and problem = statement draft =20 Hi Softgear, Thanks for your comments.Please see inline about = the reply. =20 Best regards, Yunfei =20 ________________________________________ zhangyunfei 2009-06-23 ________________________________________ =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Softgear Ko =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-22 19:50:10 =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A 'zhangyunfei'; ppsp@ietf.org =E6=8A=84=E9=80=81=EF=BC=9A =20 =E4=B8=BB=E9=A2=98=EF=BC=9A RE: [ppsp] ppsp charter and = problem statement draft =20 Hello, Yunfei. =20 I have some comments. =20 =20 In 3.4 In korea, the mobilTV subscriber is 17 million. = =E2=80=93 May I get a reference or document = about this? I have never heard about this. I read the report of Mobile TV-Tuning in or = Switching off from Arthur D Little about this = figure. You can visit = http://www.adl.com/reports.html?view=3D366 to download the = report. =20 In 4.2.1, I don=E2=80=99t understand that Figure 2 P2PSIP = process. We need update it and explain some = more. =20 This figure is to tell the routing process of = P2PSIP.Do you have some suggestions on amending = this? =20 About NAT traversal in RELOAD, TURN server = usage for RELOAD in P2PSIP is not proximity = aware. It means peer get a TURN server randomly = in the whole Internet. It may be far from = the requesting peer. Therefore, we can=E2=80=99t reuse = it directly. I agree with you.So we can involve it in = PPSP protocol if people in the mailing list = think there are some extra protocols we need to = define. =20 As you mentioned, we focus on live streaming. = I think pure live streaming has no buffer for = other(child in tree). But, according to the draft, = peer exchange bitmap. This means each peer = (which is a parent or child) must have buffer = for other peer. If peer have buffer and other = peer use it, the delivered data has more = latency. This is not a pure live streaming. = Therefore, there is two types of live streaming = =E2=80=93 pure live streaming and buffered live = streaming. I think we focus on buffered live = streaming than pure live streaming. But I think = we need discuss whether we focus on pure live = streaming. =20 We need to update the text to make it more = clear.Bascailly there are two kinds of solutions in = live streaming,push based (tree based) and pull = based(mesh based). In the latter, there is no = doubt that peer cache exist. Even in pure = tree-based streaming, as I propose in the latest = PPSP component architecture, there are some = communcations between neigbor peers to avoid loop.So = peer exchange exists both in tree based or mesh = based solutions. We may update the text to = make it more clear. There are some options for PPSP as you = mentioned.One is to choose one as the baseline = and the other is to involve both. We think = both possibilities exist.I agree with you that we = need more disscussion on this. =20 =20 In 8, Where can I get [MobileTV] ? You can visit http://www.adl.com/reports.html?view=3D366 to = download the report. =20 Additionally, I think, we have to place emphasis = on flash crowd situation of P2P IPTV service. PPSP should solve flash crowd in the term of = scalability.Besides interoperabilty is aslo what we = need, esp in the case where different edge = infrastructure can offer p2p streaming services. =20 Best regards, =20 - Softgear Ko =20 =20 From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On = Behalf Of zhangyunfei Sent: Wednesday, May 27, 2009 8:07 PM To: ppsp@ietf.org Subject: [ppsp] ppsp charter and problem statement = draft =20 Dear all, Attached is the initial version of ppsp = charter.I've also submitted a new version of PPSP = problem statement draft to IETF website in the = following = link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-statem= ent-03.txt) .Any comments and suggestions are highly = welcome. The abstract is as follows: We propose to develop an open peer-to-peer (P2P) = streaming protocol named PPSP. This document describes = the problems related to PPSP and outlines = considerations that have to be taken in account = when arriving at equitable solutions. =20 Yunfei Best regards! Sincerely yours, Yunfei =20 2009-05-27 ***************************************************** Yunfei Zhang, Ph.D. R&D, CHINA MOBILE COMMUNICATIONS CORPORATION Tel: +86 10 158016966688 ext. 3247 Fax: +86 10 63601087 MOBILE: 1360-1032-119 ***************************************************** =20 =20 ________________________________________ zhangyunfei 2009-05-27 =20 _______________________________________________ ppsp mailing list ppsp@ietf.org https://www.ietf.org/mailman/listinfo/ppsp From softgear@etri.re.kr Thu Jun 25 19:17:01 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6A0AE3A6A90 for ; Thu, 25 Jun 2009 19:17:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.152 X-Spam-Level: ** X-Spam-Status: No, score=2.152 tagged_above=-999 required=5 tests=[AWL=0.844, BAYES_20=-0.74, HELO_MISMATCH_INFO=1.448, J_CHICKENPOX_43=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wIOQ6ZUd1YkT for ; Thu, 25 Jun 2009 19:17:00 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 575DB3A6A43 for ; Thu, 25 Jun 2009 19:17:00 -0700 (PDT) Received: from softgearvaio ([129.254.1.8]) by email2.etri.info with Microsoft SMTPSVC(6.0.3790.1830); Fri, 26 Jun 2009 11:16:56 +0900 From: "SoftgearKo" To: "'zhangyunfei'" , References: <200906251611059844584@chinamobile.com> <200906251729080937545@chinamobile.com> In-Reply-To: <200906251729080937545@chinamobile.com> Date: Fri, 26 Jun 2009 11:16:57 +0900 Message-ID: <067101c9f604$2ed2f890$8c78e9b0$@re.kr> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acn1qzbSmeXJbNTIS96eL+pT6Z63AwAWMoSw Content-Language: ko X-OriginalArrivalTime: 26 Jun 2009 02:16:56.0095 (UTC) FILETIME=[2D87DAF0:01C9F604] Subject: Re: [ppsp] Fw: Re: Business model of PPSP X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 02:17:01 -0000 ( I apologize if this email is duplicated. This email is resent.) =20 Hello, all I agree with yunfei's idea. A use case draft would be better than that = we discuss business model directly. Additionally, the usecase draft should imply business models and it = should have hints to make business models. The usecase draft also will help us to find requirements of PPSP. However, before we write a usecase draft, we have to collect/share our = ideas. - which can be business models, service scenarios, or benefits of = PPSP standardization. =20 Case 5. If a streaming service company supports PPSP standard, it can = interconnect other p2p streaming network and it can share peers and = contents. The company get much more contents than standalone streaming = service company's. The company can become more famous. - Softgear Ko -------------------------------- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of = zhangyunfei Sent: Thursday, June 25, 2009 6:29 PM To: ppsp@ietf.org Subject: [ppsp] Fw: Re: Business model of PPSP =20 Hi, I think Softgear's input is very instructive for consolidating the = foundation of PPSP,esp how to use the components to realize these = requirements. I suggest to have a use case draft to discuss related issues.However = the pure business model issue is out of scope of PPSP since IETF is not = the place for business. =20 ________________________________________ zhangyunfei 2009-06-25 ________________________________________ =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Softgear Ko =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-23 19:41:33 =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A ppsp@ietf.org =E6=8A=84=E9=80=81=EF=BC=9A=20 =E4=B8=BB=E9=A2=98=EF=BC=9A [ppsp] Business model of PPSP =20 Dear All. =20 I think one reason of PPSP standardization is to expand existing P2P = streaming service and to interoperate with P2P streaming service = providers.=20 I wonder =E2=80=93 After we make PPSP, who will implement/serve PPSP? = Who/How can earn money? We need to answer to why PPSP. We have to address some business models of PPSP to suggest the bright or = tasteful future of PPSP. =20 Case 1. A contents provider (=3Dprogram provider) can add commercial = advertisements into his contents. And, he can get money from advertising = company. Case 2. A channel portal who collect channels can gather user account = and shows channel list to users. As you know, user accounts are money. A = channel portal can add commercial advertisements onto channel list page. = He may send commercial email to user using user account information. Case 3. A software developer can make free software which has = advertisement or he can make commercial player. Case 4. A hardware company can make a settop box and they can sell it to = people. If PPSP become famous, many IPTV settop or mobile device company = will make a PPSP aware settop. Currently, many settop company depends on = IPTV service provider. However, If we make PPSP, settop company will be = free from IPTV service providers. =20 Some cases require billing model or counting how many people showed the = channel. According to the component architecture, we have statistics and = report but we need to make a sure and protect from the forgery. =20 And, we have to make/choose mechanism to give some benefits to a high = uploader than a free downloader. I think many company doesn=E2=80=99t want to PPSP to be a just free = service. =20 Let=E2=80=99s share your ideas about business model. =20 =20 - Softgear Ko =20 From zhangyunfei@chinamobile.com Thu Jun 25 20:40:53 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BE9803A6835 for ; Thu, 25 Jun 2009 20:40:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -96.067 X-Spam-Level: X-Spam-Status: No, score=-96.067 tagged_above=-999 required=5 tests=[AWL=1.201, BAYES_00=-2.599, FROM_EXCESS_BASE64=1.456, HTML_MESSAGE=0.001, J_CHICKENPOX_43=0.6, J_CHICKENPOX_91=0.6, MIME_8BIT_HEADER=0.3, RELAY_IS_221=2.222, SARE_SUB_ENC_UTF8=0.152, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y70MB1HeSUeb for ; Thu, 25 Jun 2009 20:40:52 -0700 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ciZhbXA7bWVzc2FnZWlkPSUzQzViMTRmMWE3LTliZDUtNDU0Mi1hMWZjLTMzZjQ2YjQzZWU3YUBl dHJpLnJlLmtyJTNFIiANCndpZHRoPTA+IDwvRk9OVD48L0RJVj48L0JPRFk+PC9IVE1MPg0K --=====003_Dragon873163044586_=====-- From zhangyunfei@chinamobile.com Thu Jun 25 21:02:28 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A009A3A68D6 for ; Thu, 25 Jun 2009 21:02:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -96.84 X-Spam-Level: X-Spam-Status: No, score=-96.84 tagged_above=-999 required=5 tests=[AWL=1.775, BAYES_00=-2.599, MISSING_SUBJECT=1.762, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PuvkdvMn3nyB for ; Thu, 25 Jun 2009 21:02:25 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 3D19E3A6835 for ; Thu, 25 Jun 2009 21:02:24 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062612015179-10946 ; Fri, 26 Jun 2009 12:01:51 +0800 Date: Fri, 26 Jun 2009 12:01:51 +0800 From: "zhangyunfei" To: "SoftgearKo" , "ppsp@ietf.org" References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com><200906251717310156888@chinamobile.com> <200906251728498281354@chinamobile.com> <067001c9f603$f55c9530$e015bf90$@re X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-26 12:01:51, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-26 12:02:42, Serialize complete at 2009-06-26 12:02:42 Message-ID: Subject: [ppsp] (no subject) X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 04:02:28 -0000 .kr> Subject: Re: RE: [ppsp] Fw: Re: RE: ppsp charter and problem statement draft Message-ID: <200906261201517037348@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 SGksIA0KICAgVGhlIGZpZ3VyZSBpcyByZXZpc2VkLkFjdHVhbGx5IGhlcmUgd2UgdGFrZSBBbGlj ZSBhbmQgQm9CIHAycCBjbGllbnQgYW5kIHRoZSBmaXJzdCBwZWVyIGluIHRoZSBvdmVybGF5IGFj dHMgYXMgdGhlIHByb3h5LlRoZW4gdGhlIGl0ZXJhdGl2ZSByb3V0aW5nIHdvcmtzIGFzIHRoZSBm aWd1cmUgc2hvd3MuDQogICBUaGUgUDJQU0lQIHJvdXRpbmcgY2xhcmlmaWNhdGlvbiBpcyB0byBz dGF0ZSB0aGF0IGl0IG1heSBkb24ndCBzdWl0IHdpdGggdHJhY2tlciBiYXNlZCB0b3BvbG9neSh0 cmVlIG9yIG1lc2hlZCkuU28gd2UgZHJhdyBib3RoIHJvdXRpbmdzLg0KDQoNCiAgDQpBbGljZQ0K ICAoNTY3OCkNCiAgIHwgICAgICAgICAgICAgICAgICArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t 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by9wcHNwDQo= From zhangyunfei@chinamobile.com Thu Jun 25 23:28:09 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 066E33A699D for ; Thu, 25 Jun 2009 23:28:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -95.732 X-Spam-Level: X-Spam-Status: No, score=-95.732 tagged_above=-999 required=5 tests=[AWL=0.394, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_84=0.6, MIME_CHARSET_FARAWAY=2.45, RELAY_IS_221=2.222, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4bYglRWofZqC for ; Thu, 25 Jun 2009 23:28:06 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id A78743A680F for ; Thu, 25 Jun 2009 23:28:04 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.153]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009062613410949-13224 ; Fri, 26 Jun 2009 13:41:09 +0800 Date: Fri, 26 Jun 2009 13:41:08 +0800 From: "zhangyunfei" To: "ppsp@ietf.org" References: <200905271906318282982@chinamobile.com> <200906231831304538608@chinamobile.com><200906251717310156888@chinamobile.com> <200906251728498281354@chinamobile.com> <067001c9f603$f55c9530$e015bf90$@re <200906261201517037348@chinamobile.com> Message-ID: <200906261341085620278@chinamobile.com> X-mailer: Foxmail 6, 2, 103, 20 [cn] Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on jtgsml01/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-26 13:41:09, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-06-26 14:28:23 Content-Type: multipart/alternative; boundary="=====003_Dragon702882631528_=====" Subject: [ppsp] Fw: Re: RE: Fw: Re: RE: ppsp charter and problem statement draft X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 06:28:09 -0000 --=====003_Dragon702882631528_===== Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable Seems the email is not sent rightly.Resent it. Hi, =20 The figure is revised.Actually here we take Alice and BoB p2= p client and the first peer in the overlay acts as the proxy.Th= en the iterative routing works as the figure shows. The P2PSIP routing clarification is to state that it may don= 't suit with tracker based topology(tree or meshed).So we draw bo= th routings. =20 Alice (5678) | +------------------------+ | | P2PSIP DHT overlay | | | (RELOAD) = | | FetchReq(Bob) | +---------------+ | |----------------- >|---- >| Peer | | | | +--| = | | | | | +---------------+ | | | | ^ = ^ | | | | 1|2 3|= 4 | | | | V = V | | | | +----+ +----+ = | | | | |Peer| |Peer| = | | | | +----+ +----+ = | | FetchAns(1234) | | = | | <-----------------| <-+ | | | = | Bob | AppAttach(1234) | = | (1234) |----------------- >| -- -- -- -- -- -- -- --| -------- > | | <-----------------| -- -- -- -- -- -- -- --| <-------- | | +------------------------+ = | | = | | <------------------ ICE Checks ------------------- > | | INVITE ------------------------------------------- > | Alice (5678) | +------------------------+ | | P2PSIP DHT overlay | | | (RELOAD) = | | FetchReq(Bob) | +---------------+ | |----------------- >|---- >| Peer | | | | +--| = | | | | | +---------------+ | | | | ^ = | | | | = | | | | 1|4 = | | | | V = | | | | +----+ 2 +----+ = | | | | |Peer| <- >|Peer| = | | | | +----+ 3 +----+ = | | FetchAns(1234) | | = | | <-----------------| <-+ | | | = | Bob | AppAttach(1234) | = | (1234) |----------------- >| -- -- -- -- -- -- -- --| -------- > | | <-----------------| -- -- -- -- -- -- -- --| <-------- | | +------------------------+ = | | = | | <------------------ ICE Checks ------------------- > | | INVITE ------------------------------------------- > | zhangyunfei 2009-06-26 =B7=A2=BC=FE=C8=CB=A3=BA SoftgearKo =B7=A2=CB=CD=CA=B1=BC=E4=A3=BA 2009-06-26 10:15:33 =CA=D5=BC=FE=C8=CB=A3=BA 'zhangyunfei'; ppsp@ietf.org =B3=AD=CB=CD=A3=BA =20 =D6=F7=CC=E2=A3=BA RE: [ppsp] Fw: Re: RE: ppsp charter and problem= statement draft (I apologize if this email is duplicated.) Hello, yunfei. Your figure looks better. But, your figure is based= on my first figure which has some mistakes as = I mentioned in second email. Please redraw it wit= h my second figure. Or, I'll redraw it on the = next week because I'm out of office in this wee= k. (My web based emailer doesn't support a plain = text well.) In the iterative routing , the requester (alice) sh= ould send request again after it receives first res= ponse from the first peer. In the recursive routing, the arrow #3 should be = removed and the response message should be go back= to the requester through the reverse path of th= e requesting path. Additionally, as I know, P2PSIP choosed the recursive = routing as default. I don't think that we need = explain iterative routing in the problem state draft. - Softgear Ko ------------------------- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On B= ehalf Of zhangyunfei Sent: Thursday, June 25, 2009 6:29 PM To: ppsp@ietf.org Subject: [ppsp] Fw: Re: RE: ppsp charter and proble= m statement draft Hi,Softgear, Thanks for your contribution.Is = it more clear if we can replace= P2PSIP DHT overlay part by the = orginial figure2 to stress two rou= ting procedure(recursive and iterative routing)= of P2PSIP as follows? (5678) | = = +------------------------+ | = = | P2PSIP DHT overlay = | | = = | = (RELOAD) | | FetchReq(Alice) | = +---------------+ | |----------------- >|---- >| = Peer |= | | = = | +--| = = | | | = = | | +---------------+ = | | = = | | ^ = ^ = | | = = | | 1|2 = 3|4 = | | = = | | V = V = | | = = | | +----+ = +----+ | | = = | | |Peer| = |Peer| | | = = | | +----+ = +----+ | | FetchAns(1234) | = | = = | | <-----------------| <-+ = = | | = = | = = | = Bob | AppAttach(1234) | = = = | = (1234) |----------------- >| -- -- -- = -- -- -- -- --| -------- > = | | <-----------------| -- -- -- = -- -- -- -- --| <-------- = | | = = +------------------------+ = | | = = = = = = | | <------------------ ICE Chec= ks ------------------- > | | INVITE ---------------------------= ---------------- > | (5678) | = = +------------------------+ | = = | P2PSIP DHT overlay = | | = = | = (RELOAD) | | FetchReq(Alice) | = +---------------+ | |----------------- >|---- >| = Peer |= | | = = | +--| = = | | | = = | | +---------------+ = | | = = | | | = | = | | = = | | 1| = |3 = | | = = | | V = V = | | = = | | +----+ 2 = +----+ | | = = | | |Peer|-- >|Peer= | | | = = | | +----+ = +----+ | | FetchAns(1234) | = | = = | | <-----------------| <-+ = = | | = = | = = | = Bob | AppAttach(1234) | = = = | = (1234) |----------------- >| -- -- -- = -- -- -- -- --| -------- > = | | <-----------------| -- -- -- = -- -- -- -- --| <-------- = | | = = +------------------------+ = | | = = = = = = | | <------------------ ICE Chec= ks ------------------- > | | INVITE ---------------------------= ---------------- > | = BR = yunfei 2009-06-25 =B7=A2=BC=FE=C8=CB=A3=BA Softgear Ko =B7=A2=CB=CD=CA=B1=BC=E4=A3=BA 2009-06-24 08:47:25 =CA=D5=BC=FE=C8=CB=A3=BA 'zhangyunfei'; ppsp@ietf.org =B3=AD=CB=CD=A3=BA =20 =D6=F7=CC=E2=A3=BA RE: [ppsp] ppsp charter = and problem statement draft Hello Yunfei. Oh, There was some = errors. I fixed it as t= he following figure. Alice = = = = = = = = = = Bob (5678) = = = = = = = = = = (1234) =20 | = = = = +----------------------+ = = | | FetchReq(Bob) = | = = = = = | = = | |----------------- >| = P2PSIP DHT overlay = | = = | | FetchAns(1234) = | = (RELOAD) = = | = = | | <-----------------| = = = = = | = = | | = = = = | = = = = = | = = | | AppAttach(1234) = | = = = = = | = = | |----------------- >| = -- -- -- -- = -- -- -- | = -------- > | | AppAttach(5678) = | = = = = = | = = | | <-----------------| = -- -- -- -- = -- -- -- | = <-------- | | = = = = +----------------------+ = = | | = = = = = = = = = = = | | <---------= --------- ICE Checks ---------= -------- > | | INVITE = ----------------------------------------- > = | | = = = = = = = = = = = | -----Original Message----- From: ppsp-bounces@ietf.org [mailto:ppsp-boun= ces@ietf.org] On Behalf Of = Softgear Ko Sent: Tuesday, June 23, = 2009 11:32 PM To: 'zhangyunfei'; ppsp@ietf.org Subject: Re: [ppsp] ppsp = charter and problem = statement draft Hello, Yunfei. What about this figure = ? I think this = would be better than = Figure 2 in the = problem statement draft. This figure describes how = P2PSIP process well. = Of course, We have = to modify some sentences= in Sec 4.2.1 a= s replacing the figure. Alice (5678) | = = = = +----------------------+ | FetchReq(Alice) = | = = = = | |----------------- >| = P2PSIP DHT overlay = | | FetchAns(1234) = | = (RELOAD) = = | | <-----------------| = = = = = | | = = = = | = = = = = | = = Bob | AppAttach(1234) = | = = = = = | = (1234) |----------------- >| = -- -- -- -- = -- -- -- | = -------- > | | <-----------------| = -- -- -- -- = -- -- -- | = <-------- | | = = = = +----------------------+ = = | | = = = = = = = = = = = | | <---------= --------- ICE Checks ---------= -------- > | | INVITE = ----------------------------------------- > = | - Softgear Ko =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F From: zhangyunfei [mailto:zhangyunfei@chinamo= bile.com] =20 Sent: Tuesday, June 23, = 2009 7:32 PM To: Softgear Ko; ppsp@ietf.org Subject: Re: RE: [ppsp] = ppsp charter and prob= lem statement draft Hi Softgear, Thanks for your = comments.Please see inline = about the reply. = = Best regards, = = = Yunfei =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F zhangyunfei 2009-06-23 =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F =B7=A2=BC=FE=C8=CB=A3=BA Softgear Ko =B7=A2=CB=CD=CA=B1=BC=E4=A3=BA 2009-06-22 19:= 50:10 =CA=D5=BC=FE=C8=CB=A3=BA 'zhangyunfei'; ppsp@= ietf.org =B3=AD=CB=CD=A3=BA =20 =D6=F7=CC=E2=A3=BA RE: [ppsp] = ppsp charter and problem = statement draft Hello, Yunfei. I have some comments. = =20 In 3.4 In korea, the mobilTV = subscriber is 17 milli= on. =A8C May I= get a reference = or document about this? = I have never = heard about this. I read the report = of Mobile TV-Tuning in = or Switching off fr= om Arthur D Little = about this figure. You = can visit http://www.adl.com/repo= rts.html?view=3D366 to download = the report. In 4.2.1, I don=A1=AFt understand that = Figure 2 P2PSIP = process. We need update = it and explain some = more. =20 This figure is to = tell the routing process = of P2PSIP.Do you = have some suggestions on = amending this? =20 About NAT traversal = in RELOAD, TURN server = usage for RELOAD = in P2PSIP is not = proximity aware. It means = peer get a TURN= server randomly in = the whole Internet. It = may be far from = the requesting peer. = Therefore, we can=A1=AFt = reuse it directly. I agree with you.So = we can involve it = in PPSP protocol if = people in the ma= iling list think there = are some extra protoco= ls we need to d= efine. As you mentioned, we = focus on live streaming.= I think pure = live streaming has = no buffer for other(child = in tree). But, = according to the draft, = peer exchange bitmap. = This means each peer = (which is a parent = or child) must have= buffer for other = peer. If peer have = buffer and other peer = use it, the deli= vered data has more = latency. This is not = a pure live streami= ng. Therefore, there is = two types of live = streaming =A8C pure = live streaming and buffered = live streaming. I = think we focus on = buffered live streaming = than pure live streaming. = But I think we = need discuss whether = we focus on pure = live streaming. We need to update = the text to make = it more clear.Bascailly t= here are two kinds = of solutions in live = streaming,push based (tree = based) and pull based(m= esh based). In the = latter, there is no = doubt that peer cache= exist. Even in = pure tree-based streaming, as= I propose in t= he latest PPSP component = architecture, there are = some communcations between = neigbor peers to avoid = loop.So peer exchange = exists both in tree = based or mesh based = solutions. We may u= pdate the text to = make it more clear. There are some options = for PPSP as you = mentioned.One is to c= hoose one as the = baseline and the other = is to involve both. = We think both p= ossibilities exist.I agree wit= h you that we n= eed more disscussion on = this. In 8, Where can I get = [MobileTV] ? You can visit http://www.adl.c= om/reports.html?view=3D366 to download = the report. Additionally, I think, we = have to place empha= sis on flash crowd = situation of P2P IPTV = service. PPSP should solve flash = crowd in the term = of scalability.Besides interopera= bilty is aslo what = we need, esp in = the case where different = edge infrastructure can = offer p2p streaming s= ervices. Best regards, - = Softgear Ko From: ppsp-bounces@ietf.org [mailto:ppsp-boun= ces@ietf.org] On Behalf Of = zhangyunfei Sent: Wednesday, May 27, = 2009 8:07 PM To: ppsp@ietf.org Subject: [ppsp] ppsp charter = and problem statement = draft Dear all, Attached is= the initial version = of ppsp charter.I've als= o submitted a new = version of PPSP problem = statement draft to = IETF website in the = following link.(http://www.ietf.org/internet-drafts/dr= aft-zhang-ppsp-problem-statement-03.txt) .Any = comments and suggestions are = highly welcome. = The abstract is = as follows: We propose to develop = an open peer-to-peer (P= 2P) streaming protocol named = PPSP. This document = describes the problems rel= ated to PPSP and = outlines considerations that = have to be taken = in account when arriving = at equitable solutions. Yunfei Best regards! Sincerely yours, = Yunfei =20 = 2009-05-27 ***************************************************** Yunfei Zhang, Ph.D. R&D, CHINA MOBILE COMMUNICATIO= NS CORPORATION Tel: +86 10 158016966688 = ext. 3247 Fax: +86 10 63601087 MOBILE: 1360-1032-119 ***************************************************** =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F zhangyunfei 2009-05-27 =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F ppsp mailing list ppsp@ietf.org https://www.ietf.org/mailman/listinfo/ppsp --=====003_Dragon702882631528_===== Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable
Seems the email is not s= ent=20 rightly.Resent it.
 
 
Hi,  
     The  figure  is  revised.Actually=20  here  we  take  Alice  and  BoB  p2p=20  client  and  the  first  peer  in  the =  overlay  acts  as  the  proxy.Then  the=20  iterative  routing  works  as  the  figure=20  shows.
     The  P2PSIP  routing  clarification= =20  is  to  state  that  it  may  don't=20  suit  with  tracker  based  topology(tree  o= r=20  meshed).So  we  draw  both  routings.
 
 
   
Alice
   (5678)
     |              = =20                    =20  +------------------------+
     |              = =20                      = ;|=20      P2PSIP  DHT  overlay      |
     |              = =20                      = ;|=20                (RELOAD)   &nbs= p;=20            |
     |    FetchReq(Bob)      |= =20          +---------------+    |
     |----------------- >|---- >|     &= nbsp;=20      Peer          |  =20  |
     |              = =20                      = ;|=20    +--|                 &= nbsp;=20            |    |
     |              = =20                      = ;|=20    |    +---------------+    |
     |              = =20                      = ;|=20    |          ^       &nb= sp;=20          ^          |
     |              = =20                      = ;|=20    |        1|2         &= nbsp;=20    3|4        |
     |              = =20                      = ;|=20    |          V       &nb= sp;=20          V          |
     |              = =20                      = ;|=20    |      +----+      +----+  = =20    |
     |              = =20                      = ;|=20    |      |Peer|      |Peer|  = =20    |
     |              = =20                      = ;|=20    |      +----+      +----+  = =20    |
     |    FetchAns(1234)    |  = ;=20  |                   &nbs= p;=20                    =20  |
     | <-----------------| <-+     &nbs= p;=20                      = ;=20              |
     |              = =20                      = ;|=20                      = ;=20                      = ;=20    |                 &nbs= p;=20  Bob
     |  AppAttach(1234)    |   &nbs= p;=20                      = ;=20                      = ;|=20                (1234)
     |----------------- >|  --  --  -= -=20  --  --  --  --  --|  -------- >  |
     | <-----------------|  --  --  -= -=20  --  --  --  --  --|   <--------  |
     |              = =20                    =20  +------------------------+             =          |
     |              = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20        |
     |   <------------------  ICE  Ch= ecks=20  ------------------- >      |
     |    INVITE=20  ------------------------------------------- >    |
 
   Alice
   (5678)
     |              = =20                    =20  +------------------------+
     |              = =20                      = ;|=20      P2PSIP  DHT  overlay      |
     |              = =20                      = ;|=20                (RELOAD)   &nbs= p;=20            |
     |    FetchReq(Bob)      |= =20          +---------------+    |
     |----------------- >|---- >|     &= nbsp;=20      Peer          |  =20  |
     |              = =20                      = ;|=20    +--|                 &= nbsp;=20            |    |
     |              = =20                      = ;|=20    |    +---------------+    |
     |              = =20                      = ;|=20    |          ^       &nb= sp;=20                    =20  |
     |              = =20                      = ;|=20                |     &nbs= p;=20                      = ;=20  |
     |              = =20                      = ;|=20    |        1|4         &= nbsp;=20                  |
     |              = =20                      = ;|=20    |          V       &nb= sp;=20                    =20  |
     |              = =20                      = ;|=20    |      +----+  2  +----+    = ;=20  |
     |              = =20                      = ;|=20    |      |Peer| <- >|Peer|    =20  |
     |              = =20                      = ;|=20    |      +----+  3  +----+    = ;=20  |
     |    FetchAns(1234)    |  = ;=20  |                   &nbs= p;=20                    =20  |
     | <-----------------| <-+     &nbs= p;=20                      = ;=20              |
     |              = =20                      = ;|=20                      = ;=20                      = ;=20    |                 &nbs= p;=20  Bob
     |  AppAttach(1234)    |   &nbs= p;=20                      = ;=20                      = ;|=20                (1234)
     |----------------- >|  --  --  -= -=20  --  --  --  --  --|  -------- >  |
     | <-----------------|  --  --  -= -=20  --  --  --  --  --|   <--------  |
     |              = =20                    =20  +------------------------+             =          |
     |              = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20        |
     |   <------------------  ICE  Ch= ecks=20  ------------------- >      |
     |    INVITE=20  ------------------------------------------- >    |
 
 
 
 
 
zhangyunfei
2009-06-26
 
 
 
=B7=A2=BC=FE=C8=CB=A3=BA  SoftgearKo
=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA  2009-06-26  10:15:33
=CA=D5=BC=FE=C8=CB=A3=BA  'zhangyunfei';  ppsp@ietf.org
=B3=AD=CB=CD=A3=BA  
=D6=F7=CC=E2=A3=BA  RE:  [ppsp]  Fw:  Re:  RE= :  ppsp=20  charter  and  problem  statement  draft
 
(I    apologize    if    this  =20  email    is    duplicated.)
 
Hello,    yunfei.
 
Your    figure    looks    better.  = ;=20  But,    your    figure    is  =20  based    on    my    first  =20  figure    which    has    some  =20  mistakes    as    I    mentioned  = =20  in    second    email.    Please  = =20  redraw    it    with    my  =20  second    figure.    Or,    I'll  = =20  redraw    it    on    the    = next=20    week    because    I'm    out &n= bsp;=20  of    office    in    this  =20  week.    (My    web    based  =20  emailer    doesn't    support    a &nbs= p;=20  plain    text    well.)
In    the    iterative    routing  = =20  ,    the    requester    (alice)  = =20  should    send    request    again &nbs= p;=20  after    it    receives    first  = =20  response    from    the    first  = =20  peer.
In    the    recursive    routing,  = ;=20  the    arrow    #3    should   &nb= sp;be=20    removed    and    the    respons= e=20    message    should    be    go &n= bsp;=20  back    to    the    requester  =20  through    the    reverse    path  = ;=20  of    the    requesting    path.
Additionally,    as    I    know,  = =20  P2PSIP    choosed    the    recursive &= nbsp;=20  routing    as    default.    I  =20  don't    think    that    we  =20  need    explain    iterative    routing= =20    in    the    problem    state &n= bsp;=20  draft.
 
-    Softgear    Ko
 
 
-------------------------
 
From:    ppsp-bounces@ietf.org  =20  [mailto:ppsp-bounces@ietf.org]    On    Behalf &n= bsp;=20  Of    zhangyunfei
Sent:    Thursday,    June    25,  = =20  2009    6:29    PM
To:    ppsp@ietf.org
Subject:    [ppsp]    Fw:    Re:   =  RE:    ppsp    charter    and  =20  problem    statement    draft
 
 
Hi,Softgear,
                 Thanks &= nbsp;=20      for        your      = ;=20  contribution.Is        it      =20  more        clear        if &= nbsp;=20      we        can       =  replace        P2PSIP        = DHT=20        overlay        part   &= nbsp;=20    by        the      =20  orginial        figure2       &nbs= p;to=20        stress        two   &nb= sp;=20    routing        procedure(recursive   =      and        iterative     =    routing)        of      =20  P2PSIP        as      =20  follows?
         (5678)
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          +------------------------+
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20            P2PSIP        = DHT=20        overlay            = ;=20            |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20        (RELOAD)           &nbs= p;=20                      = ;=20                      = ;=20        |
                 |  = =20              FetchReq(Alice)   &nbs= p;=20    |                 &nbs= p;=20                    =20  +---------------+              =20  |
               =20  |-----------------       >|----      = ;=20 >|                    = =20                      = ;=20      Peer               &= nbsp;=20                      = ;=20  |                |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    +--|                 &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20              |       &nbs= p;=20        |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |              =20  +---------------+              =20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20                      = ;^=20                      = ;=20                      = ;=20                      = ;=20      ^               &nbs= p;=20                      = ;=20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20              1|2       &n= bsp;=20                      = ;=20                      = ;=20    3|4                 &n= bsp;=20              |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20                      = ;V=20                      = ;=20                      = ;=20                      = ;=20      V               &nbs= p;=20                      = ;=20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      +----+              = =20          +----+          = =20              |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      |Peer|              = =20          |Peer|          = =20              |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      +----+              = =20          +----+          = =20              |
                 |  = =20              FetchAns(1234)    = ;=20            |         &nbs= p;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    |
                 |  = =20     <-----------------|       <-+   &nb= sp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |                 &nbs= p;=20                      = ;=20                      = ;=20                  Bob
                 |  = =20      AppAttach(1234)           &nbs= p;=20    |                 &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    | &nbs= p;=20                      = ;=20                      = ;=20                  (1234)
               =20  |-----------------       >|      =20  --        --        --  = =20      --        --      =20  --        --        --|  = ;=20      --------       >      = =20  |
                 |  = =20     <-----------------|        --   &= nbsp;=20    --        --        --= =20        --        --     &= nbsp;=20  --        --|           =     <--------        |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          +------------------------+     =                      = ;=20                      = ;=20                      = ;=20                  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    |
                 |  = =20             <------------------   &nb= sp;=20    ICE        Checks      =20  -------------------       >       &n= bsp;=20                |
                 |  = =20              INVITE      = =20  -------------------------------------------       >= =20                |
 
 
         (5678)
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          +------------------------+
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20            P2PSIP        = DHT=20        overlay            = ;=20            |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20        (RELOAD)           &nbs= p;=20                      = ;=20                      = ;=20        |
                 |  = =20              FetchReq(Alice)   &nbs= p;=20    |                 &nbs= p;=20                    =20  +---------------+              =20  |
               =20  |-----------------       >|----      = ;=20 >|                    = =20                      = ;=20      Peer               &= nbsp;=20                      = ;=20  |                |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    +--|                 &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20              |       &nbs= p;=20        |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |              =20  +---------------+              =20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20      |               &nbs= p;=20                      = ;=20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20              1|       &nb= sp;=20                      = ;=20                      = ;=20                    |3 &nb= sp;=20                      = ;=20        |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20                      = ;V=20                      = ;=20                      = ;=20                      = ;=20      V               &nbs= p;=20                      = ;=20  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      +----+        2      = ;=20  +----+                  = =20      |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      |Peer|--       >|Peer|     =                    |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20    |                 &nbs= p;=20      +----+              = =20          +----+          = =20              |
                 |  = =20              FetchAns(1234)    = ;=20            |         &nbs= p;=20      |               &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    |
                 |  = =20     <-----------------|       <-+   &nb= sp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |                 &nbs= p;=20                      = ;=20                      = ;=20                  Bob
                 |  = =20      AppAttach(1234)           &nbs= p;=20    |                 &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    | &nbs= p;=20                      = ;=20                      = ;=20                  (1234)
               =20  |-----------------       >|      =20  --        --        --  = =20      --        --      =20  --        --        --|  = ;=20      --------       >      = =20  |
                 |  = =20     <-----------------|        --   &= nbsp;=20    --        --        --= =20        --        --     &= nbsp;=20  --        --|           =     <--------        |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          +------------------------+     =                      = ;=20                      = ;=20                      = ;=20                  |
                 |  = =20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    |
                 |  = =20             <------------------   &nb= sp;=20    ICE        Checks      =20  -------------------       >       &n= bsp;=20                |
                 |  = =20              INVITE      = =20  -------------------------------------------       >= =20                |
 
 
 
                    =                      = ;=20                      = ;=20                      = ;=20    BR
                    =                      = ;=20                      = ;=20                      = ;=20            yunfei
2009-06-25
 
 
 
=B7=A2=BC=FE=C8=CB=A3=BA        Softgear   &n= bsp;  =20  Ko
=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA        2009-06-24 &= nbsp;    =20  08:47:25
=CA=D5=BC=FE=C8=CB=A3=BA        'zhangyunfei'; &nb= sp;    =20  ppsp@ietf.org
=B3=AD=CB=CD=A3=BA        
=D6=F7=CC=E2=A3=BA        RE:      =  [ppsp]  =20      ppsp        charter     &= nbsp;=20  and        problem      =20  statement        draft
 
Hello                Yunfei.
 
Oh,                There  = ;=20              was       &n= bsp;=20        some             &= nbsp;=20  errors.
I                fixed   =              it       &nb= sp;=20        as             &nb= sp;=20  the                following =                figure.
 
 
Alice                   &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                Bob
                 (5678) &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20  (1234)                  = =20              
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                +-------------------= ---+=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20        FetchReq(Bob)          = =20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20          |
                    =              |-----------------   &= nbsp;=20           >|          = =20                    =20  P2PSIP                DHT &nb= sp;=20              overlay      = ;=20                      = ;=20    |                 &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
                    =              |       &nbs= p;=20        FetchAns(1234)          = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20        (RELOAD)           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20       <-----------------|         &nb= sp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20            |         &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20            |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                |
                    =              |       &nbs= p;=20        AppAttach(1234)         &nbs= p;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |-----------------   &= nbsp;=20           >|          = =20      --               &nb= sp;--=20                --     &nb= sp;=20          --           &nb= sp;=20    --                -- &= nbsp;=20              --       &nb= sp;=20        |             &nbs= p;=20  --------               >  = =20              |
                    =              |       &nbs= p;=20        AppAttach(5678)         &nbs= p;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20       <-----------------|         &nb= sp;=20      --               &nb= sp;--=20                --     &nb= sp;=20          --           &nb= sp;=20    --                -- &= nbsp;=20              --       &nb= sp;=20        |             &nbs= p;=20                 <--------  = =20              |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                +-------------------= ---+=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
                    =              |       &nbs= p;=20                      = ;=20 <------------------              =20  ICE                Checks &nb= sp;=20              -----------------   &n= bsp;=20           >           =                      = ;=20                |
                    =              |       &nbs= p;=20                      = ;=20  INVITE              =20  -----------------------------------------        = =20       >               =                  |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
 
 
 
-----Original              =20  Message-----
From:              =20  ppsp-bounces@ietf.org              = ;=20  [mailto:ppsp-bounces@ietf.org]           &nb= sp;=20    On                Beha= lf=20                Of     &nb= sp;=20          Softgear         &nbs= p;=20      Ko
Sent:                Tuesday, =                June     &= nbsp;=20          23,           &n= bsp;=20    2009                11= :32=20                PM
To:                'zhangyunfe= i';=20                ppsp@ietf.org
Subject:                Re: &n= bsp;=20              [ppsp]      = =20          ppsp           &= nbsp;=20    charter                = ;and=20                problem    = ;=20            statement       &nb= sp;=20        draft
 
Hello,                Yunfei.<= /DIV>
 
 
What                about &nbs= p;=20              this       &= nbsp;=20        figure            = =20    ?                I &nb= sp;=20              think       =          this           &= nbsp;=20    would                b= e=20                better    = =20            than         &= nbsp;=20      Figure              = =20  2                in   &n= bsp;=20            the         &n= bsp;=20      problem              = ;=20  statement              =20  draft.
This                figure &nb= sp;=20              describes     &nb= sp;=20          how           &n= bsp;=20    P2PSIP              =20  process                well. =                Of     &nb= sp;=20          course,          = ;=20      We              =20  have                to  = =20              modify      = =20          some           &= nbsp;=20    sentences               &nb= sp;in=20                Sec     &n= bsp;=20          4.2.1           =      as              =20  replacing                the =                figure.
 
 
                 Alice
                 (5678)
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20              =20  +----------------------+
                    =              |       &nbs= p;=20        FetchReq(Alice)         &nbs= p;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |-----------------   &= nbsp;=20           >|          = =20                    =20  P2PSIP                DHT &nb= sp;=20              overlay      = ;=20                      = ;=20    |
                    =              |       &nbs= p;=20        FetchAns(1234)          = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20        (RELOAD)           &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20       <-----------------|         &nb= sp;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20            |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                |     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  Bob
                    =              |       &nbs= p;=20        AppAttach(1234)         &nbs= p;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;|=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                  (1234)
                    =              |-----------------   &= nbsp;=20           >|          = =20      --               &nb= sp;--=20                --     &nb= sp;=20          --           &nb= sp;=20    --                -- &= nbsp;=20              --       &nb= sp;=20        |             &nbs= p;=20  --------               >  = =20              |
                    =              |       &nbs= p;=20       <-----------------|         &nb= sp;=20      --               &nb= sp;--=20                --     &nb= sp;=20          --           &nb= sp;=20    --                -- &= nbsp;=20              --       &nb= sp;=20        |             &nbs= p;=20                 <--------  = =20              |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                +-------------------= ---+=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    =20  |
                    =              |       &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20    |
                    =              |       &nbs= p;=20                      = ;=20 <------------------              =20  ICE                Checks &nb= sp;=20              -----------------   &n= bsp;=20           >           =                      = ;=20                |
                    =              |       &nbs= p;=20                      = ;=20  INVITE              =20  -----------------------------------------        = =20       >               =                  |
 
 
 
-                Softgear &nbs= p;=20              Ko
 
 
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
From:                zhangyunf= ei=20              =20  [mailto:zhangyunfei@chinamobile.com]         &nbs= p;=20      
Sent:                Tuesday, =                June     &= nbsp;=20          23,           &n= bsp;=20    2009                7:= 32=20                PM
To:                Softgear &n= bsp;=20              Ko;       &n= bsp;=20        ppsp@ietf.org
Subject:                Re: &n= bsp;=20              RE:       &n= bsp;=20        [ppsp]            = =20    ppsp                ch= arter=20                and     &n= bsp;=20          problem          = ;=20      statement             &nb= sp;=20  draft
 
Hi                Softgear,
                 Thanks &= nbsp;=20              for       &n= bsp;=20        your             &= nbsp;=20  comments.Please               &nbs= p;see=20                inline    = =20            about         =        the             &n= bsp;=20  reply.
 
                    =                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                    Best &= nbsp;=20              regards,
                    =                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                      = ;=20                  Yunfei
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
zhangyunfei
2009-06-23
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=B7=A2=BC=FE=C8=CB=A3=BA             &nb= sp;  Softgear  =20              Ko
=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA           &nbs= p;    2009-06-22=20                19:50:10
=CA=D5=BC=FE=C8=CB=A3=BA             &nb= sp;  'zhangyunfei';=20                ppsp@ietf.org
=B3=AD=CB=CD=A3=BA               &n= bsp;
=D6=F7=CC=E2=A3=BA               &n= bsp;RE:  =20              [ppsp]      = =20          ppsp           &= nbsp;=20    charter                = ;and=20                problem    = ;=20            statement       &nb= sp;=20        draft
 
Hello,                Yunfei.<= /DIV>
 
I                have   &= nbsp;=20            some         &= nbsp;=20      comments.             &nb= sp;=20  
 
In                3.4
 In                korea,= =20                the     &n= bsp;=20          mobilTV          = ;=20      subscriber             &n= bsp;=20  is                17   &= nbsp;=20            million.       &nbs= p;=20                      = ;=20  =A8C                May  = ;  =20            I         &nbs= p;=20      get               &n= bsp;a=20                reference   &nb= sp;=20            or         &nb= sp;=20      document             &nbs= p;=20  about                this? &n= bsp;=20                      = ;=20        I             &nbs= p;=20  have                never &nb= sp;=20              heard       =          about           =      this.
I                read   &= nbsp;=20            the         &n= bsp;=20      report              = =20  of                Mobile &nbs= p;=20              TV-Tuning     &nb= sp;=20          in           &nb= sp;=20    or                Swit= ching=20                off     &n= bsp;=20          from           &= nbsp;=20    Arthur                = D=20                Little    = =20            about         =        this             &= nbsp;=20  figure.                You &n= bsp;=20              can       &n= bsp;=20        visit             =    http://www.adl.com/repo= rts.html?view=3D366=20                to     &nb= sp;=20          download         &nbs= p;=20      the              =20  report.
 
In                4.2.1,
 I                don=A1= =AFt  =20              understand     &n= bsp;=20          that           &= nbsp;=20    Figure                = 2=20                P2PSIP    = =20            process.       &nbs= p;=20        We             &nb= sp;=20  need                update &n= bsp;=20              it       &nb= sp;=20        and             &n= bsp;=20  explain                some &= nbsp;=20              more.
                 
 This                figu= re=20                is     &nb= sp;=20          to           &nb= sp;=20    tell                th= e=20                routing    = ;=20            process        = ;=20        of             &nb= sp;=20  P2PSIP.Do                you =                have     &= nbsp;=20          some           &= nbsp;=20    suggestions              =20  on                amending &n= bsp;=20              this?
                 
 About                NAT= =20                traversal   &nb= sp;=20                      = ;=20      in              =20  RELOAD,                TURN &= nbsp;=20              server      = =20          usage           =      for              =20  RELOAD                in &nbs= p;=20              P2PSIP      = =20          is           &nb= sp;=20    not              =20  proximity                awar= e.=20                It     &nb= sp;=20          means           =      peer              =20  get                a   &= nbsp;=20            TURN         &= nbsp;=20      server              = =20  randomly                in &n= bsp;=20              the       &n= bsp;=20        whole             =    Internet.               &nb= sp;It=20                may     &n= bsp;=20          be           &nb= sp;=20    far                fro= m=20                the     &n= bsp;=20          requesting         &n= bsp;=20      peer.               =  Therefore,                we =                can=A1=AFt   &n= bsp;=20            reuse         =        it             &nb= sp;=20  directly.
 I                agree &= nbsp;=20              with       &= nbsp;=20        you.So            = =20    we                can =                involve    = ;=20            it         &nb= sp;=20      in              =20  PPSP                protocol =                if     &nb= sp;=20          people          = =20      in              =20  the                mailing &n= bsp;=20              list       &= nbsp;=20        think             =    there                a= re=20                some     &= nbsp;=20          extra           =      protocols             &nb= sp;=20  we                need  = =20              to       &nb= sp;=20        define.
 
As                you   &= nbsp;=20            mentioned,       &n= bsp;=20        we             &nb= sp;=20  focus                on  = ;=20              live       &= nbsp;=20        streaming.           &n= bsp;=20                    I &nbs= p;=20              think       =          pure           &= nbsp;=20    live              =20  streaming                has =                no     &nb= sp;=20          buffer          = =20      for              =20  other(child                in= =20                tree).    = =20            But,         &= nbsp;=20      according             &nb= sp;=20  to                the   =              draft,      = =20          peer           &= nbsp;=20    exchange              =20  bitmap.                This &= nbsp;=20              means       =          each           &= nbsp;=20    peer                (w= hich=20                is     &nb= sp;=20          a           &nbs= p;=20    parent                = or=20                child)    = =20            must         &= nbsp;=20      have              =20  buffer                for &nb= sp;=20              other       =          peer.           =      If              =20  peer                have &nbs= p;=20              buffer      = =20          and           &n= bsp;=20    other                p= eer=20                use     &n= bsp;=20          it,           &n= bsp;=20    the              =20  delivered                data= =20                has     &n= bsp;=20          more           &= nbsp;=20    latency.              =20  This                is  = =20              not       &n= bsp;=20        a             &nbs= p;=20  pure                live &nbs= p;=20              streaming.     &n= bsp;=20          Therefore,         &n= bsp;=20      there               =  is                two   =              types       =          of           &nb= sp;=20    live              =20  streaming                =A8C=  =20              pure       &= nbsp;=20        live             &= nbsp;=20  streaming                and =                buffered   &nbs= p;=20            live         &= nbsp;=20      streaming.             &n= bsp;=20  I                think  = =20              we       &nb= sp;=20        focus             =    on                buff= ered=20                live     &= nbsp;=20          streaming         &nb= sp;=20      than              =20  pure                live &nbs= p;=20              streaming.     &n= bsp;=20          But           &n= bsp;=20    I                think= =20                we     &nb= sp;=20          need           &= nbsp;=20    discuss              =20  whether                we &nb= sp;=20              focus       =          on           &nb= sp;=20    pure                li= ve=20                streaming.
 
We                need   =              to       &nb= sp;=20        update            = =20    the                tex= t=20                to     &nb= sp;=20          make           &= nbsp;=20    it                more= =20                clear.Bascailly &nbs= p;=20              there       =          are           &n= bsp;=20    two                kin= ds=20                of     &nb= sp;=20          solutions         &nb= sp;=20      in              =20  live                streaming= ,push=20                based     =            (tree         =        based)            = =20    and                pul= l=20                based(mesh   &n= bsp;=20            based).        = ;=20        In             &nb= sp;=20  the                latter, &n= bsp;=20              there       =          is           &nb= sp;=20    no                doub= t=20                that     &= nbsp;=20          peer           &= nbsp;=20    cache                e= xist.=20                Even     &= nbsp;=20          in           &nb= sp;=20    pure              =20  tree-based              =20  streaming,                as =                I     &nbs= p;=20          propose          = ;=20      in              =20  the                latest &nb= sp;=20              PPSP       &= nbsp;=20        component           &nb= sp;=20    architecture,              = =20  there                are &nbs= p;=20              some       &= nbsp;=20        communcations          = =20      between              = ;=20  neigbor                peers =                to     &nb= sp;=20          avoid           =      loop.So              = ;=20  peer                exchange =                exists    = =20            both         &= nbsp;=20      in              =20  tree                based &nb= sp;=20              or       &nb= sp;=20        mesh             &= nbsp;=20  based                solution= s.=20                We     &nb= sp;=20          may           &n= bsp;=20    update                = the=20                text     &= nbsp;=20          to           &nb= sp;=20    make                it= =20                more     &= nbsp;=20          clear.
There                are  = ;=20              some       &= nbsp;=20        options            = ;=20    for                PPS= P=20                as     &nb= sp;=20          you           &n= bsp;=20    mentioned.One              = =20  is                to   &= nbsp;=20            choose        = =20        one             &n= bsp;=20  as                the   =              baseline     &nbs= p;=20          and           &n= bsp;=20    the                oth= er=20                is     &nb= sp;=20          to           &nb= sp;=20    involve              =20  both.                We  = ;=20              think       =          both           &= nbsp;=20    possibilities              = =20  exist.I                agree =                with     &= nbsp;=20          you           &n= bsp;=20    that                we= =20                need     &= nbsp;=20          more           &= nbsp;=20    disscussion              =20  on                this.
 
 
In                8,
Where                can  = ;=20              I       &nbs= p;=20        get             &n= bsp;=20  [MobileTV]                ?
You                can   =              visit       =          http://www.adl.com/repo= rts.html?view=3D366=20                to     &nb= sp;=20          download         &nbs= p;=20      the              =20  report.
 
Additionally,                I= =20                think,    = =20            we         &nb= sp;=20      have              =20  to                place  = ;=20              emphasis     &nbs= p;=20          on           &nb= sp;=20    flash                c= rowd=20                situation   &nb= sp;=20            of         &nb= sp;=20      P2P              =20  IPTV                service.<= /DIV>
PPSP                should &nb= sp;=20              solve       =          flash           =      crowd               =  in                the   =              term       &= nbsp;=20        of             &nb= sp;=20  scalability.Besides               =  interoperabilty               &nbs= p;is=20                aslo     &= nbsp;=20          what           &= nbsp;=20    we                need= ,=20                esp     &n= bsp;=20          in           &nb= sp;=20    the                cas= e=20                where     =            different       &nb= sp;=20        edge             &= nbsp;=20  infrastructure                = ;can=20                offer     =            p2p         &n= bsp;=20      streaming             &nb= sp;=20  services.
 
Best                regards,
 
-                    = ;=20                      = ;=20                      = ;=20                      = ;=20          Softgear         &nbs= p;=20      Ko
 
 
From:              =20  ppsp-bounces@ietf.org              = ;=20  [mailto:ppsp-bounces@ietf.org]           &nb= sp;=20    On                Beha= lf=20                Of     &nb= sp;=20          zhangyunfei
Sent:                Wednesday= ,=20                May     &n= bsp;=20          27,           &n= bsp;=20    2009                8:= 07=20                PM
To:              =20  ppsp@ietf.org
Subject:                [ppsp]= =20                ppsp     &= nbsp;=20          charter          = ;=20      and              =20  problem                statem= ent=20                draft
 
Dear                all,
                    =                      = ;=20        Attached           &nbs= p;=20    is                the =                initial    = ;=20            version        = ;=20        of             &nb= sp;=20  ppsp                charter.I= 've=20                also     &= nbsp;=20          submitted         &nb= sp;=20      a               &nbs= p;new=20                version    = ;=20            of         &nb= sp;=20      PPSP              =20  problem                statem= ent=20                draft     =            to         &nb= sp;=20      IETF              =20  website                in &nb= sp;=20              the       &n= bsp;=20        following           &nb= sp;=20    link.(http://www.ietf.org/internet-drafts/draft-zhang-ppsp-problem-s= tatement-03.txt)=20                .Any     &= nbsp;=20          comments         &nbs= p;=20      and              =20  suggestions                ar= e=20                highly    = =20            welcome.
                    =                      = ;=20                      = ;=20                      = ;=20            The         &n= bsp;=20      abstract             &nbs= p;=20  is                as   &= nbsp;=20            follows:
We                propose &nbs= p;=20              to       &nb= sp;=20        develop            = ;=20    an                open= =20                peer-to-peer   =              (P2P)       =          streaming         &nb= sp;=20      protocol             &nbs= p;=20  named                PPSP. &n= bsp;=20              This       &= nbsp;=20        document           &nbs= p;=20    describes              =20  the                problems &= nbsp;=20              related      = ;=20          to           &nb= sp;=20    PPSP                an= d=20                outlines   &nbs= p;=20            considerations      = ;=20          that           &= nbsp;=20    have                to= =20                be     &nb= sp;=20          taken           =      in              =20  account                when &= nbsp;=20              arriving     &nbs= p;=20          at           &nb= sp;=20    equitable              =20  solutions.
 
Yunfei
                 Best &nb= sp;=20              regards!
                 Sincerel= y=20                yours,
                    =                      = ;=20                      = ;=20                  Yunfei  = =20              
                    =                      = ;=20                      = ;=20                      = ;=20            2009-05-27
*****************************************************
Yunfei                Zhang, &= nbsp;=20              Ph.D.
R&D,                CHINA =                MOBILE    = =20            COMMUNICATIONS      = ;=20          CORPORATION
Tel:                +86  = =20              10       &nb= sp;=20        158016966688           =      ext.              =20  3247
Fax:                +86  = =20              10       &nb= sp;=20        63601087
MOBILE:              =20  1360-1032-119
*****************************************************
 
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
zhangyunfei
2009-05-27
 
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
ppsp                mailing &n= bsp;=20              list
ppsp@ietf.org
https://www.ietf.org/mailman/listinfo/ppsp
--=====003_Dragon702882631528_=====-- From rpenno@juniper.net Thu Jun 25 23:54:36 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BD0EC3A699D for ; Thu, 25 Jun 2009 23:54:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, J_CHICKENPOX_28=0.6, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_84=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cSKC8aJeYv8Z for ; Thu, 25 Jun 2009 23:54:35 -0700 (PDT) Received: from exprod7og111.obsmtp.com (exprod7og111.obsmtp.com [64.18.2.175]) by core3.amsl.com (Postfix) with ESMTP id B11C33A69BA for ; Thu, 25 Jun 2009 23:54:32 -0700 (PDT) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob111.postini.com ([64.18.6.12]) with SMTP ID DSNKSkRwjV5tu5vAIqqwMhS+plp3vPszWT+l@postini.com; Thu, 25 Jun 2009 23:54:53 PDT Received: from p-emfe02-wf.jnpr.net (172.28.145.25) by P-EMHUB03-HQ.jnpr.net (172.24.192.37) with Microsoft SMTP Server (TLS) id 8.1.375.2; Thu, 25 Jun 2009 23:50:00 -0700 Received: from EMBX01-WF.jnpr.net ([fe80::1914:3299:33d9:e43b]) by p-emfe02-wf.jnpr.net ([fe80::c126:c633:d2dc:8090%11]) with mapi; Fri, 26 Jun 2009 02:50:00 -0400 From: Reinaldo Penno To: zhangyunfei , "ppsp@ietf.org" Date: Fri, 26 Jun 2009 02:49:55 -0400 Thread-Topic: [ppsp] Fw: Re: RE: Fw: Re: RE: ppsp charter and problem statement draft Thread-Index: Acn2J1gtG9Uqh/EkS1yBEAfEaTJXHQAAvfwa Message-ID: In-Reply-To: <200906261341085620278@chinamobile.com> Accept-Language: en-US Content-Language: en X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [ppsp] 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amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.523 X-Spam-Level: ** X-Spam-Status: No, score=2.523 tagged_above=-999 required=5 tests=[AWL=-1.499, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_32=0.6, J_CHICKENPOX_33=0.6, J_CHICKENPOX_42=0.6, J_CHICKENPOX_45=0.6, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, J_CHICKENPOX_63=0.6, J_CHICKENPOX_64=0.6, J_CHICKENPOX_74=0.6, J_CHICKENPOX_92=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q5wd4i65mIyG for ; Fri, 26 Jun 2009 04:44:15 -0700 (PDT) Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.235]) by core3.amsl.com (Postfix) with ESMTP id 848713A67A6 for ; Fri, 26 Jun 2009 04:44:15 -0700 (PDT) Received: by rv-out-0506.google.com with SMTP id f9so485718rvb.49 for ; Fri, 26 Jun 2009 04:43:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=Z5oebH5yeGj6ObuF3Bfn9Pt+XdyQKQ1CNv9svW7zNhs=; b=lSIUq2VYZNLxEp5YnSIPChUuNEeRtPVY9Z366s1IMlLQzJOoey96d6OG65veuI/vD5 gBa1zPQeICSEHrS0irOfRY2VSQOBC53msDulIJh7LE66Ie980R+AdXu/p7yGddlzAtJm C4aa9ok0tA10r5VU8hyzMWBl6HoocvZH9oCJE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=pG5vTDMvySV4I9TD1ptKfhqv7Tz5XYjGyR7OwwaEFTfFe37JZxkgWnmp+E5fbMbJd1 68VCHTFkvca2egqlQj5S+mQDxuC/cesh6JY0FJsBEkK5/4MRVAOS0hx/Evby+8c0aVyI GtHL1HHgYbCrNvbCiv5T84iLmlvhBoYrLDamM= MIME-Version: 1.0 Sender: zesus75@gmail.com Received: by 10.140.255.19 with SMTP id c19mr2993464rvi.155.1246016588703; Fri, 26 Jun 2009 04:43:08 -0700 (PDT) In-Reply-To: <600459950906260404i2ee8e25ep3b3ce07906880ee5@mail.gmail.com> References: <200906231801203126019@chinamobile.com> <600459950906230616u247f8cb7p6a47991cb17c223b@mail.gmail.com> <008e01c9f405$eade2290$c09a67b0$@re.kr> <600459950906230658j2474b5dbi11b0aa3f72cb2803@mail.gmail.com> <200906251738001565595@chinamobile.com> <600459950906260404i2ee8e25ep3b3ce07906880ee5@mail.gmail.com> Date: Fri, 26 Jun 2009 20:43:08 +0900 X-Google-Sender-Auth: 16d81a7b8339f065 Message-ID: <600459950906260443r210ecf94pe1ffcf60c9ac08c6@mail.gmail.com> From: Alex Kyungho KIM To: zhangyunfei Content-Type: multipart/mixed; boundary=000e0cd0ed78276746046d3ed8ed Cc: "ppsp@ietf.org" Subject: Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM*** 7.949 (5) RE:initialproposal of PPSP component architecture X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 11:44:17 -0000 --000e0cd0ed78276746046d3ed8ed Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear all, There is a missing line. +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ | +-------------------------------------------------------------+ | | | Application Layer | | | |-------------------------------------------------------------+ | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ | +-----------------------------+ +-----------------------------+ | | | Play-out Layer | | Information Layer | | | | +-------------------------+ | | +----+-------+------------+ | | | | |Playback(Play,Pause,Stop)| | | |Auth|Session|Report/Stats| | | | | +-------------------------+ | | +----+-------+------------+ | | | +-----------------------------+ +-----------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | Communication Layer | | +------------------------+ +--------------------------------+ | | | Topology Creation | |Head Node/Tracker Communication | | | +------------------------+ +--------------------------------+ | | +------------------------+ +--------------------------------+ | | | Neighbor Communication | | Bootstrap | | | +------------------------+ +--------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | +-------------------------------------------------------------+ | | | Transport Layer | | | +-------------------------------------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | +-------------------------------------------------------------+ | | | Physical Layer | | | +-------------------------------------------------------------+ | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ Regards, Alex On Fri, Jun 26, 2009 at 8:04 PM, Alex Kyungho KIM wrote: > Dear Yunfei, > > I didn't know my drawing are disruptive. :) > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > | +-------------------------------------------------------------+ | > | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 Application Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 | | > | |-------------------------------------------------------------+ | > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > | +-----------------------------+ +-------------------------------+ > | | Play-out Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| | In= formation Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | > | | +-------------------------+ | | +------+-------+------------+ | > | | |Playback(Play,Pause,Stop)| | | | Auth |Session|Report/Stats| | > | | +-------------------------+ | | +------+-------+------------+ | > | +-----------------------------+ +-------------------------------+ > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | =C2=A0Communication Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| > | +------------------------+ =C2=A0 +--------------------------------+ | > | | =C2=A0 =C2=A0Topology Creation =C2=A0 | =C2=A0 |Head Node/Tracker Com= munication | | > | +------------------------+ =C2=A0 +--------------------------------+ | > | +------------------------+ =C2=A0 +--------------------------------+ | > | | Neighbor Communication | =C2=A0 | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0B= ootstrap =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | | > | +------------------------+ =C2=A0 +--------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | +-------------------------------------------------------------+ | > | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0Transport Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| | > | +-------------------------------------------------------------+ | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > | +-------------------------------------------------------------+ | > | | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0Physical Layer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | | > | +-------------------------------------------------------------+ | > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > > > If you have same trouble, Please look into the enclosed TEXT file. > > My recommendation is to seperate the application layer and any lower > layer. that is the best way to archive the flexiblity and more > extendible. > > Regards, > Alex > > > > 2009/6/25 zhangyunfei : >> Sorry,Alex, >> =C2=A0=C2=A0=C2=A0The figure=C2=A0cannot display rightly in the email.Wo= uld you please send it >> again for clarification?Thanks in advance. >> >> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0 Yunfei >> >> ________________________________ >> zhangyunfei >> 2009-06-25 >> ________________________________ >> =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Alex Kyungho KIM >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-23=C2=A021:58:34 >> =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A osh93@etri.re.kr; ppsp@ietf.org >> =E6=8A=84=E9=80=81=EF=BC=9A >> =E4=B8=BB=E9=A2=98=EF=BC=9A Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM*= ** 7.949 (5) >> RE:initialproposal of PPSP component architecture >> >> Dear my colleagues, >> ? >> Thank you your?quick response on my question >> ? >> So, I am not sure what you concern the role of 'Application Layer' is. w= e >> agree on the core of PPSP?would be the?communication layer in the OSI 7 >> Layer apsect. >> ? >> What would you expect?any problems happening if 'Application layer' is n= ot >> face?on 'Communication layer'??? >> ? >> Let's say 'Application Layer'?is able to access?the 'Play-out layer; and >> 'Information layer' but don't 'touch' the 'Communication layer'. We may >> extend the role of 'Information layer' to cover some functionality of wh= at >> osh93 want. It could be 'session management' which is relavant to >> 'Communication layer'. >> ? >> How?do you think of this? >> ? >> +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | >> ? | |---------------------------------------------------------------+ | >> ? |?+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D| >> ? |?+-----------------------------+--------------------------------+ >> ??? | ? ? Play-out Layer ? ? | ? ?Information Layer ? ?| >> ? |?+-----------------------------+--------------------------------+ >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | >> ? | +-------------------------------------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? >> Regards, >> Alex >> ? >> 2009/6/23 ???_2009 >>> >>> Dear Alex >>> >>> ? >>> >>> Sorry for my ambiguous expression. >>> >>> That means that =E2=80=98Application Layer=E2=80=99 and =E2=80=98Commun= ication Layer=E2=80=99 are >>> adjacent. >>> >>> Is that clear now? >>> >>> ? >>> >>> Best Regards, >>> >>> Seung-Hun Oh >>> >>> ? >>> >>> From: zesus75@gmail.com [mailto:zesus75@gmail.com] On Behalf Of Alex >>> Kyungho KIM >>> Sent: Tuesday, June 23, 2009 10:17 PM >>> To: osh93@etri.re.kr >>> Subject: Re: [ppsp] ***SPAM*** 7.949 (5) RE: initial proposal of PPSP >>> component architecture >>> >>> ? >>> >>> Dear osh93, >>> >>> ? >>> >>> This is high level diagram to make someone understand our work or what = we >>> are doing. You have several modifications but I should ask you a >>> question?about your proposal. >>> >>> ? >>> >>> I am not clear "touch each other" in your comment. What does it mean? >>> >>> ? >>> >>> Regards, >>> >>> Alex >>> >>> 2009/6/23 ???_2009 >>> >>> Dear yunfei >>> >>> I think it is good idea to in insert this figure into the PPSP problem >>> statement draft. >>> But I think it needs more clarification. >>> >>> I think that the word, 'layer', is not appropriate for 'Play-out Layer' >>> and >>> 'Information Layer', or the position of them need to be a little bit >>> modified. >>> As you know, each layer must be vertically related in communication wor= ld, >>> as far as I know. >>> Here is my minor proposal: >>> ? +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ >>> ? | +-------------------------------------------------------------+ | >>> ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | >>> ? | | ? ? ? ? ?+--------------------------------------------------+ | >>> ? | | ? ? ? ? ?| +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | | ? ? ? ? ?| | ? ? Play-out Layer ? ? | ? ?Information Layer ? ?| >>> ? | | ? ? ? ? ?| | ?+----+ ?+----+ ?+---+ | ? +----+ ?+----+ ?+---+ | >>> ? | | ? ? ? ? ?| | ?| ? ?| ?| ? ?| ?| ? | | ? | ? ?| ?| ? ?| ?| ? | | >>> ? | +----------+ | ?+----+ ?+----+ ?+---+ | ? +----+ ?+----+ ?+---+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | +-------------------------------------------------------------+ | >>> ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | >>> ? | +-------------------------------------------------------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> >>> I try to locate both 'Play-out Layer' and 'Info. Layer' parallely and >>> 'Application Layer' and 'Communication Layer' try to be located to touc= h >>> each other. >>> >>> These are just my opinion. >>> >>> Best Regards, >>> >>> Seung-Hun Oh >>> >>> >>> -----Original Message----- >>> From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of >>> zhangyunfei >>> Sent: Tuesday, June 23, 2009 7:01 PM >>> To: ppsp@ietf.org >>> Subject: [ppsp] initial proposal of PPSP component architecture >>> >>> >>> Dear all, >>> ? ?As Gonzalo suggested,PPSP problem statement draft is better to inclu= de >>> a figure to express the component architecture.I propose the following >>> layer architecture as the initial input.The components architecuture is= as >>> follows: >>> >>> ? +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ >>> ? | +-------------------------------------------------------------+ | >>> ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | >>> ? | +-------------------------------------------------------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | ?Play-out Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? | >>> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >>> ? | ?| ? ? start ? ? ?| ? ?| ? ? ?Pause ? ?| ? ?| ? ? ? Stop ? ? ?| | >>> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | ?Information Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >>> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >>> ? | ?| ?Registration ?| ? ?| ? ? Report ? ?| ? ?| ? ?Statistics ? | | >>> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | >>> ? | +------------------------+ ? +--------------------------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> ? | +-------------------------------------------------------------+ | >>> ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | >>> ? | +-------------------------------------------------------------+ | >>> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >>> >>> It can be divided into 5 layers: >>> 1)Transport Layer is responsible for data transmission between peers, >>> UDP,TCP or other protocols can be used; >>> 2)Communicaton layer is the key layer in PPSP, including four component= s: >>> ? ? ?1)Topology creation is a component each peer has to request to joi= n >>> the overlay,like tree or ? ?mesh; >>> ? ? ?2)Head Node/Tracker Communication is a component each peer >>> continually to get peer list or peer info report to the tracker or head >>> node. >>> ? ? ?3)Neighbor Communication is a component that peers exchange bitmap= or >>> other neigbor availability information for loop avoidance(in tree). >>> ? ? ?4)Bootstrap is a component to introduce a newly joined node to get >>> the tracker or head node information.It keeps monitoring the trackers a= nd >>> head nodes. >>> 3)Information layer is a layer that nodes register to the system,publis= h >>> their contents,report their useful inforamation beyond those in the pee= r >>> tracker reporting for peer selection and give statistics to the >>> trackers.The tracker itself also use statistic and report module for >>> global >>> control in upload bandwidth consumption,overhead consumption and other >>> regards. >>> 4)Play-out layer is a layer to control the action of the media brower.R= TSP >>> is in this scope. >>> 5)Application layer is the top layer in the ISO/OSI model,where PPSP >>> application exists. >>> >>> We are planning to add this part in the Problem statement draft.Any >>> comments are welcome. >>> >>> ? ? ? ?BR >>> >>> ? ? ?yunfei >>> ? ?2009-06-23 >>> >>> _______________________________________________ >>> ppsp mailing list >>> ppsp@ietf.org >>> https://www.ietf.org/mailman/listinfo/ppsp >>> >>> _______________________________________________ >>> ppsp mailing list >>> ppsp@ietf.org >>> https://www.ietf.org/mailman/listinfo/ppsp >>> >>> >>> -- >>> Alex Kyungho KIM >>> LG Electronics. >>> Senior Research Engineer >>> E-mail ?: zesus@lge.com >>> Office ?: +82 ? 2 2102 0111 >>> Mobile : +82 10 7917 0406 >>> FAX ? ? : +82 ? 2 2102 0140 >>> DTV Research Laboratory, LG Electronics. >>> Seoul University Research Park >>> San 4-1, BongCheon 7-Dong >>> KwanAk-Gu,Seoul, 151-919 >>> The Republic of Korea. >>> >>> _______________________________________________ >>> ppsp mailing list >>> ppsp@ietf.org >>> https://www.ietf.org/mailman/listinfo/ppsp >>> >> >> >> >> -- >> Alex Kyungho KIM >> LG Electronics. >> Senior Research Engineer >> E-mail ?: zesus@lge.com >> Office ?: +82 ? 2 2102 0111 >> Mobile : +82 10 7917 0406 >> FAX ? ? : +82 ? 2 2102 0140 >> DTV Research Laboratory, LG Electronics. >> Seoul University Research Park >> San 4-1, BongCheon 7-Dong >> KwanAk-Gu,Seoul, 151-919 >> The Republic of Korea. >> >> _______________________________________________ >> ppsp mailing list >> ppsp@ietf.org >> https://www.ietf.org/mailman/listinfo/ppsp >> >> > > > > -- > Alex Kyungho KIM > LG Electronics. > Senior Research Engineer > E-mail =C2=A0: zesus@lge.com > Office =C2=A0: +82 =C2=A0 2 2102 0111 > Mobile : +82 10 7917 0406 > FAX =C2=A0 =C2=A0 : +82 =C2=A0 2 2102 0140 > DTV Research Laboratory, LG Electronics. > Seoul University Research Park > San 4-1, BongCheon 7-Dong > KwanAk-Gu,Seoul, 151-919 > The Republic of Korea. > --=20 Alex Kyungho KIM LG Electronics. Senior Research Engineer E-mail : zesus@lge.com Office : +82 2 2102 0111 Mobile : +82 10 7917 0406 FAX : +82 2 2102 0140 DTV Research Laboratory, LG Electronics. Seoul University Research Park San 4-1, BongCheon 7-Dong KwanAk-Gu,Seoul, 151-919 The Republic of Korea. --000e0cd0ed78276746046d3ed8ed Content-Type: text/plain; charset=US-ASCII; name="ppsp_arch.txt" Content-Disposition: attachment; filename="ppsp_arch.txt" Content-Transfer-Encoding: base64 X-Attachment-Id: f_fweu2b7k1 Kz09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09Kw0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfCB8ICAgICAgICAgICAgICAgICAgICAgICBBcHBsaWNh dGlvbiBMYXllciAgICAgICAgICAgICAgICAgICAgIHwgfA0KfCB8LS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KKz09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 Kw0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rICstLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLSsgfA0KfCB8IFBsYXktb3V0IExheWVyICAgICAgICAgICAgICB8IHwgSW5mb3Jt YXRpb24gTGF5ZXIgICAgICAgICAgIHwgfA0KfCB8ICstLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t KyB8IHwgKy0tLS0rLS0tLS0tLSstLS0tLS0tLS0tLS0rIHwgfA0KfCB8IHxQbGF5YmFjayhQbGF5 LFBhdXNlLFN0b3ApfCB8IHwgfEF1dGh8U2Vzc2lvbnxSZXBvcnQvU3RhdHN8IHwgfA0KfCB8ICst LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tKyB8IHwgKy0tLS0rLS0tLS0tLSstLS0tLS0tLS0tLS0r IHwgfA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rICstLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLSsgfA0KfD09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09fA0KfCAgQ29tbXVuaWNhdGlvbiBMYXllciAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgfA0KfCArLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tKyAgICstLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfCB8 ICAgIFRvcG9sb2d5IENyZWF0aW9uICAgfCAgIHxIZWFkIE5vZGUvVHJhY2tlciBDb21tdW5pY2F0 aW9uIHwgfA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tKyAgICstLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLSsgfA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tKyAgICstLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfCB8IE5laWdoYm9yIENvbW11bmljYXRp b24gfCAgIHwgICAgICAgICAgQm9vdHN0cmFwICAgICAgICAgICAgIHwgfA0KfCArLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tKyAgICstLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0K fD09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09fA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfCB8ICAgICAgICAgICAgICAgICAgICAgIFRyYW5zcG9y dCBMYXllciAgICAgICAgICAgICAgICAgICAgICAgIHwgfA0KfCArLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfD09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 fA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLSsgfA0KfCB8ICAgICAgICAgICAgICAgICAgICAgIFBoeXNpY2FsIExheWVyICAg ICAgICAgICAgICAgICAgICAgICAgIHwgfA0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KKz09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Kw0KDQo= --000e0cd0ed78276746046d3ed8ed-- From zesus75@gmail.com Fri Jun 26 05:14:15 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 558803A69CE for ; 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s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=oKAJ5oqaBGz6Ow5YkvY66awwJ/pc6KDz0YkgdGSFzA4=; b=ihkb8TkdgiM0H1vg9X5XLzMBgIakE6MX3zur/zfkMTqknpTYRLSopG4ilHPaXHeCOe Cx1ucIkSDocLIwkte7OpR+V2DW9u4js5rYyrI0hJWtrMYp4FpGjH2/mHAe386GPpQ7jE yXOn8ngQnym0IYIHIYvn8Z1RMWYy24szcsqkk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=gyNxLDXHTWqtiVScPP6bTi2w+6WJAr0a3aEHGFPij6Wgx4P8XQgtpa/9uYnzEFFc/6 hHS9XOC2R7nfR6lm0we+H2dzdKzIUCczUjx9eedchyAY47hUlzEQEiRyG0F2ZPwe+I1G Sv09/qmbQZSC4RkrkBrZvD6YUkp9YgSbjUK2w= MIME-Version: 1.0 Sender: zesus75@gmail.com Received: by 10.141.20.7 with SMTP id x7mr2945840rvi.260.1246014289601; Fri, 26 Jun 2009 04:04:49 -0700 (PDT) In-Reply-To: <200906251738001565595@chinamobile.com> References: <200906231801203126019@chinamobile.com> <600459950906230616u247f8cb7p6a47991cb17c223b@mail.gmail.com> <008e01c9f405$eade2290$c09a67b0$@re.kr> <600459950906230658j2474b5dbi11b0aa3f72cb2803@mail.gmail.com> <200906251738001565595@chinamobile.com> Date: Fri, 26 Jun 2009 20:04:49 +0900 X-Google-Sender-Auth: 028a12d4c4c261ec Message-ID: <600459950906260404i2ee8e25ep3b3ce07906880ee5@mail.gmail.com> From: Alex Kyungho KIM To: zhangyunfei Content-Type: multipart/mixed; boundary=000e0cd1b08c1de586046d3e4f1b Cc: "ppsp@ietf.org" Subject: Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM*** 7.949 (5) RE:initialproposal of PPSP component architecture X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 12:14:15 -0000 --000e0cd1b08c1de586046d3e4f1b Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear Yunfei, I didn't know my drawing are disruptive. :) +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ | +-------------------------------------------------------------+ | | | Application Layer | | | |-------------------------------------------------------------+ | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ | +-----------------------------+ +-------------------------------+ | | Play-out Layer | | Information Layer | | | +-------------------------+ | | +------+-------+------------+ | | | |Playback(Play,Pause,Stop)| | | | Auth |Session|Report/Stats| | | | +-------------------------+ | | +------+-------+------------+ | | +-----------------------------+ +-------------------------------+ |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | Communication Layer | | +------------------------+ +--------------------------------+ | | | Topology Creation | |Head Node/Tracker Communication | | | +------------------------+ +--------------------------------+ | | +------------------------+ +--------------------------------+ | | | Neighbor Communication | | Bootstrap | | | +------------------------+ +--------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | +-------------------------------------------------------------+ | | | Transport Layer | | | +-------------------------------------------------------------+ | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | +-------------------------------------------------------------+ | | | Physical Layer | | | +-------------------------------------------------------------+ | +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ If you have same trouble, Please look into the enclosed TEXT file. My recommendation is to seperate the application layer and any lower layer. that is the best way to archive the flexiblity and more extendible. Regards, Alex 2009/6/25 zhangyunfei : > Sorry,Alex, > =C2=A0=C2=A0=C2=A0The figure=C2=A0cannot display rightly in the email.Wou= ld you please send it > again for clarification?Thanks in advance. > > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0 Yunfei > > ________________________________ > zhangyunfei > 2009-06-25 > ________________________________ > =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A Alex Kyungho KIM > =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A 2009-06-23=C2=A021:58:34 > =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A osh93@etri.re.kr; ppsp@ietf.org > =E6=8A=84=E9=80=81=EF=BC=9A > =E4=B8=BB=E9=A2=98=EF=BC=9A Re: [ppsp] ***SPAM*** 5.979 (5) RE: ***SPAM**= * 7.949 (5) > RE:initialproposal of PPSP component architecture > > Dear my colleagues, > ? > Thank you your?quick response on my question > ? > So, I am not sure what you concern the role of 'Application Layer' is. we > agree on the core of PPSP?would be the?communication layer in the OSI 7 > Layer apsect. > ? > What would you expect?any problems happening if 'Application layer' is no= t > face?on 'Communication layer'??? > ? > Let's say 'Application Layer'?is able to access?the 'Play-out layer; and > 'Information layer' but don't 'touch' the 'Communication layer'. We may > extend the role of 'Information layer' to cover some functionality of wha= t > osh93 want. It could be 'session management' which is relavant to > 'Communication layer'. > ? > How?do you think of this? > ? > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ > ? | +-------------------------------------------------------------+ | > ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | > ? | |---------------------------------------------------------------+ | > ? |?+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D| > ? |?+-----------------------------+--------------------------------+ > ??? | ? ? Play-out Layer ? ? | ? ?Information Layer ? ?| > ? |?+-----------------------------+--------------------------------+ > ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| > ? | +------------------------+ ? +--------------------------------+ | > ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | > ? | +------------------------+ ? +--------------------------------+ | > ? | +------------------------+ ? +--------------------------------+ | > ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | > ? | +------------------------+ ? +--------------------------------+ | > ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > ? | +-------------------------------------------------------------+ | > ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | > ? | +-------------------------------------------------------------+ | > ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| > ? > Regards, > Alex > ? > 2009/6/23 ???_2009 >> >> Dear Alex >> >> ? >> >> Sorry for my ambiguous expression. >> >> That means that =E2=80=98Application Layer=E2=80=99 and =E2=80=98Communi= cation Layer=E2=80=99 are >> adjacent. >> >> Is that clear now? >> >> ? >> >> Best Regards, >> >> Seung-Hun Oh >> >> ? >> >> From: zesus75@gmail.com [mailto:zesus75@gmail.com] On Behalf Of Alex >> Kyungho KIM >> Sent: Tuesday, June 23, 2009 10:17 PM >> To: osh93@etri.re.kr >> Subject: Re: [ppsp] ***SPAM*** 7.949 (5) RE: initial proposal of PPSP >> component architecture >> >> ? >> >> Dear osh93, >> >> ? >> >> This is high level diagram to make someone understand our work or what w= e >> are doing. You have several modifications but I should ask you a >> question?about your proposal. >> >> ? >> >> I am not clear "touch each other" in your comment. What does it mean? >> >> ? >> >> Regards, >> >> Alex >> >> 2009/6/23 ???_2009 >> >> Dear yunfei >> >> I think it is good idea to in insert this figure into the PPSP problem >> statement draft. >> But I think it needs more clarification. >> >> I think that the word, 'layer', is not appropriate for 'Play-out Layer' >> and >> 'Information Layer', or the position of them need to be a little bit >> modified. >> As you know, each layer must be vertically related in communication worl= d, >> as far as I know. >> Here is my minor proposal: >> ? +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | >> ? | | ? ? ? ? ?+--------------------------------------------------+ | >> ? | | ? ? ? ? ?| +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D| >> ? | | ? ? ? ? ?| | ? ? Play-out Layer ? ? | ? ?Information Layer ? ?| >> ? | | ? ? ? ? ?| | ?+----+ ?+----+ ?+---+ | ? +----+ ?+----+ ?+---+ | >> ? | | ? ? ? ? ?| | ?| ? ?| ?| ? ?| ?| ? | | ? | ? ?| ?| ? ?| ?| ? | | >> ? | +----------+ | ?+----+ ?+----+ ?+---+ | ? +----+ ?+----+ ?+---+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | >> ? | +-------------------------------------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> >> I try to locate both 'Play-out Layer' and 'Info. Layer' parallely and >> 'Application Layer' and 'Communication Layer' try to be located to touch >> each other. >> >> These are just my opinion. >> >> Best Regards, >> >> Seung-Hun Oh >> >> >> -----Original Message----- >> From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of >> zhangyunfei >> Sent: Tuesday, June 23, 2009 7:01 PM >> To: ppsp@ietf.org >> Subject: [ppsp] initial proposal of PPSP component architecture >> >> >> Dear all, >> ? ?As Gonzalo suggested,PPSP problem statement draft is better to includ= e >> a figure to express the component architecture.I propose the following >> layer architecture as the initial input.The components architecuture is = as >> follows: >> >> ? +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+ >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Application Layer ? ? ? ? ? ? ? ? ? ? | | >> ? | +-------------------------------------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | ?Play-out Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? | >> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >> ? | ?| ? ? start ? ? ?| ? ?| ? ? ?Pause ? ?| ? ?| ? ? ? Stop ? ? ?| | >> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | ?Information Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >> ? | ?| ?Registration ?| ? ?| ? ? Report ? ?| ? ?| ? ?Statistics ? | | >> ? | ?+----------------+ ? ?+---------------+ ? ?+-----------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | ?Communication Layer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | ? ?Topology Creation ? | ? |Head Node/Tracker Communication | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | +------------------------+ ? +--------------------------------+ | >> ? | | Neighbor Communication | ? | ? ? ? ? ?Bootstrap ? ? ? ? ? ? | | >> ? | +------------------------+ ? +--------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> ? | +-------------------------------------------------------------+ | >> ? | | ? ? ? ? ? ? ? ? ? ? ? Transport Layer ? ? ? ? ? ? ? ? ? ? ? | | >> ? | +-------------------------------------------------------------+ | >> ? |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| >> >> It can be divided into 5 layers: >> 1)Transport Layer is responsible for data transmission between peers, >> UDP,TCP or other protocols can be used; >> 2)Communicaton layer is the key layer in PPSP, including four components= : >> ? ? ?1)Topology creation is a component each peer has to request to join >> the overlay,like tree or ? ?mesh; >> ? ? ?2)Head Node/Tracker Communication is a component each peer >> continually to get peer list or peer info report to the tracker or head >> node. >> ? ? ?3)Neighbor Communication is a component that peers exchange bitmap = or >> other neigbor availability information for loop avoidance(in tree). >> ? ? ?4)Bootstrap is a component to introduce a newly joined node to get >> the tracker or head node information.It keeps monitoring the trackers an= d >> head nodes. >> 3)Information layer is a layer that nodes register to the system,publish >> their contents,report their useful inforamation beyond those in the peer >> tracker reporting for peer selection and give statistics to the >> trackers.The tracker itself also use statistic and report module for >> global >> control in upload bandwidth consumption,overhead consumption and other >> regards. >> 4)Play-out layer is a layer to control the action of the media brower.RT= SP >> is in this scope. >> 5)Application layer is the top layer in the ISO/OSI model,where PPSP >> application exists. >> >> We are planning to add this part in the Problem statement draft.Any >> comments are welcome. >> >> ? ? ? ?BR >> >> ? ? ?yunfei >> ? ?2009-06-23 >> >> _______________________________________________ >> ppsp mailing list >> ppsp@ietf.org >> https://www.ietf.org/mailman/listinfo/ppsp >> >> _______________________________________________ >> ppsp mailing list >> ppsp@ietf.org >> https://www.ietf.org/mailman/listinfo/ppsp >> >> >> -- >> Alex Kyungho KIM >> LG Electronics. >> Senior Research Engineer >> E-mail ?: zesus@lge.com >> Office ?: +82 ? 2 2102 0111 >> Mobile : +82 10 7917 0406 >> FAX ? ? : +82 ? 2 2102 0140 >> DTV Research Laboratory, LG Electronics. >> Seoul University Research Park >> San 4-1, BongCheon 7-Dong >> KwanAk-Gu,Seoul, 151-919 >> The Republic of Korea. >> >> _______________________________________________ >> ppsp mailing list >> ppsp@ietf.org >> https://www.ietf.org/mailman/listinfo/ppsp >> > > > > -- > Alex Kyungho KIM > LG Electronics. > Senior Research Engineer > E-mail ?: zesus@lge.com > Office ?: +82 ? 2 2102 0111 > Mobile : +82 10 7917 0406 > FAX ? ? : +82 ? 2 2102 0140 > DTV Research Laboratory, LG Electronics. > Seoul University Research Park > San 4-1, BongCheon 7-Dong > KwanAk-Gu,Seoul, 151-919 > The Republic of Korea. > > _______________________________________________ > ppsp mailing list > ppsp@ietf.org > https://www.ietf.org/mailman/listinfo/ppsp > > --=20 Alex Kyungho KIM LG Electronics. Senior Research Engineer E-mail : zesus@lge.com Office : +82 2 2102 0111 Mobile : +82 10 7917 0406 FAX : +82 2 2102 0140 DTV Research Laboratory, LG Electronics. Seoul University Research Park San 4-1, BongCheon 7-Dong KwanAk-Gu,Seoul, 151-919 The Republic of Korea. --000e0cd1b08c1de586046d3e4f1b Content-Type: text/plain; charset=US-ASCII; name="ppsp_arch.txt" Content-Disposition: attachment; filename="ppsp_arch.txt" Content-Transfer-Encoding: base64 X-Attachment-Id: f_fwesn93f0 Kz09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09Kw0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KfCB8ICAgICAgICAgICAgICAgICAgICAgICBBcHBsaWNh dGlvbiBMYXllciAgICAgICAgICAgICAgICAgICAgIHwgfA0KfCB8LS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfA0KKz09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 Kw0KfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rICstLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tKw0KfCB8IFBsYXktb3V0IExheWVyICAgICAgICAgICAgICB8IHwgSW5mb3Jt YXRpb24gTGF5ZXIgICAgICAgICAgICAgfCANCnwgfCArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LSsgfCB8ICstLS0tLS0rLS0tLS0tLSstLS0tLS0tLS0tLS0rIHwNCnwgfCB8UGxheWJhY2soUGxh eSxQYXVzZSxTdG9wKXwgfCB8IHwgQXV0aCB8U2Vzc2lvbnxSZXBvcnQvU3RhdHN8IHwNCnwgfCAr LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgfCB8ICstLS0tLS0rLS0tLS0tLSstLS0tLS0tLS0t LS0rIHwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tKyArLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLSsNCnw9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PXwNCnwgIENvbW11bmljYXRpb24gTGF5ZXIgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIHwNCnwgKy0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLSsgICArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwNCnwg fCAgICBUb3BvbG9neSBDcmVhdGlvbiAgIHwgICB8SGVhZCBOb2RlL1RyYWNrZXIgQ29tbXVuaWNh dGlvbiB8IHwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgICArLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0rIHwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSsgICArLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwNCnwgfCBOZWlnaGJvciBDb21tdW5pY2F0 aW9uIHwgICB8ICAgICAgICAgIEJvb3RzdHJhcCAgICAgICAgICAgICB8IHwNCnwgKy0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLSsgICArLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwN Cnw9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PXwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwNCnwgfCAgICAgICAgICAgICAgICAgICAgICBUcmFuc3Bv cnQgTGF5ZXIgICAgICAgICAgICAgICAgICAgICAgICB8IHwNCnwgKy0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwNCnw9PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PXwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0rIHwNCnwgfCAgICAgICAgICAgICAgICAgICAgICBQaHlzaWNhbCBMYXllciAg ICAgICAgICAgICAgICAgICAgICAgICB8IHwNCnwgKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0rIHwNCis9PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PSsNCg0K --000e0cd1b08c1de586046d3e4f1b-- From zongning@huawei.com Sun Jun 28 23:51:30 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9B5283A6D3E for ; 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Mon, 29 Jun 2009 14:51:34 +0800 (CST) Received: from [172.24.1.24] (Forwarded-For: [10.164.12.81]) by szxmc04-in.huawei.com (mshttpd); Mon, 29 Jun 2009 14:51:34 +0800 Date: Mon, 29 Jun 2009 14:51:34 +0800 From: zongning 63316 To: ppsp@ietf.org Message-id: MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.2 HotFix 2.14 (built Aug 8 2006) Content-type: multipart/mixed; boundary="Boundary_(ID_zL2mL4UmFUNa3CVqFwB44Q)" Content-language: zh-CN X-Accept-Language: zh-CN Priority: normal Subject: [ppsp] =?gb2312?b?16q3oiA6TmV3IFZlcnNpb24gTm90aWZpY2F0aW9uIGZv?= =?gb2312?b?ciBkcmFmdC16b25nLXBwc3AtY2h1bmstZGlzY292ZXJ5LTAw?= X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Jun 2009 06:51:30 -0000 This is a multi-part message in MIME format. --Boundary_(ID_zL2mL4UmFUNa3CVqFwB44Q) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline Hi, There is an initial version of Chunk Discovery for P2P Streaming that describes some mechanisms for distributed chunk discovery in the case of P2P streaming, including re-using RELOAD, and combind Tracker/Peer Gossip method. Let me know any comments you have. Thanks. BR, Ning Zong ****************************************************************************************** This email and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or em ail immediately and delete it! ***************************************************************************************** --Boundary_(ID_zL2mL4UmFUNa3CVqFwB44Q) Content-type: text/plain; NAME=draft-zong-ppsp-chunk-discovery-00.txt Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=draft-zong-ppsp-chunk-discovery-00.txt PPSP N. Zong, Ed. Internet-Draft Huawei Technologies Intended status: Standards Track June 28, 2009 Expires: December 30, 2009 Chunk Discovery for P2P Streaming draft-zong-ppsp-chunk-discovery-00 Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on December 30, 2009. Copyright Notice Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Abstract This document describes several mechanisms of Chunk Discovery in P2P Streaming use case. The Chunk Discovery for P2P streaming provides the functionality of streaming sources registrar and discovery in a Zong Expires December 30, 2009 [Page 1] Internet-Draft P2P Streaming Usage June 2009 fully-distributed system. It provides register, update and lookup service for video chunks in the P2P Streaming applications. The mechanisms include a P2P streaming usage for REsource LOcation And Discovery (RELOAD), and a combined Trakcer and Peer Gossip method. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Implementation using Current RELOAD Mechanisms . . . . . . . . 4 3.1. Register Chunk Information . . . . . . . . . . . . . . . . 5 3.2. PEER-REGISTRATION Kind Definition . . . . . . . . . . . . 6 3.3. Lookup Chunk Information . . . . . . . . . . . . . . . . . 7 3.4. Extend PeerRegistrationData . . . . . . . . . . . . . . . 7 4. Combine Data on the Storage Peer . . . . . . . . . . . . . . . 9 4.1. Register Chunk Information . . . . . . . . . . . . . . . . 9 4.2. Combine Data . . . . . . . . . . . . . . . . . . . . . . . 10 4.3. New PEER-REGISTRATION Kind Definition . . . . . . . . . . 10 4.4. Lookup Chunk Information . . . . . . . . . . . . . . . . . 10 4.5. New Requirement to Storage Peer . . . . . . . . . . . . . 11 5. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 11 6. A Combined Tracker and Peer Gossip Method . . . . . . . . . . 11 6.1. Tracker Communication . . . . . . . . . . . . . . . . . . 12 6.2. Peer Gossip . . . . . . . . . . . . . . . . . . . . . . . 13 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13 8. Security Considerations . . . . . . . . . . . . . . . . . . . 14 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 14 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 14 10.1. Normative References . . . . . . . . . . . . . . . . . . . 14 10.2. Informative References . . . . . . . . . . . . . . . . . . 14 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 15 Zong Expires December 30, 2009 [Page 2] Internet-Draft P2P Streaming Usage June 2009 1. Introduction As one of the architectures for deliverying streaming traffic on the global Internet , the P2P streaming has the advantage of being scalable to a large number of subscribers with low infrastructural cost [PPSP1]. P2P streaming applications attract more and more users to consume video content online [PPLive][PPStrm][UUSee]. P2P streaming applications adopt a decentralized streaming architecture where the media content is separated into smaller chunks to be shared among peers. A chunk is a basic unit of partitioned streaming, which is used for the purpose of storage and advertising to neighbors what parts of a movie a peer holds [SIGP2P]. In the case of VoD, different users watch different parts of the video content (i.e. have different chunks) so that a peer normally maintains a buffer to share video chunks with other peers. In the case of live content, because all peers are mostly interested in what is actually happens "now", one possible role of a peer is to request video chunks from a live source and then forward the chunks to more peers. In all the cases, The procedure of chunk discovery for P2P streaming is needed to allow peers to register the information of the video chunks which have been received and ready for sharing with other peers, as well as locate video chunks from multiple peers in a fully-distributed manner. This document describes several mechanisms of Chunk Discovery in P2P Streaming use case. The Chunk Discovery for P2P streaming provides the functionality of streaming sources registrar and discovery in a fully-distributed system. It provides register, update and lookup service for video chunks in the P2P Streaming applications. The mechanisms include a P2P streaming usage for REsource LOcation And Discovery (RELOAD) [I-D.ietf-p2psip-base], and a combined Trakcer and Peer Gossip method [PPSP1][PPSP2]. 2. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [RFC2119]. We use the terminology and definitions from Concepts and Terminology for Peer to Peer SIP [I-D.ietf-p2psip-concepts] and the RELOAD Base Protocol [I-D.ietf-p2psip-base]. Zong Expires December 30, 2009 [Page 3] Internet-Draft P2P Streaming Usage June 2009 3. Implementation using Current RELOAD Mechanisms The P2P streaming usage for current RELOAD involves the following functions. 1, Registration. A peer can use the RELOAD data storage functionality to store a mapping from the Chunk-IDs of the stored video chunks to its Node-ID. 2, Lookup. A peer can use the RELOAD data storage functionality to retrieve the Node-IDs of the peers who have registered the information of the requested video chunks. For example, Peer A has received video chunks with Video-ID "Movie A" and Chunk-IDs "Chunk 1", "Chunk 2" and ready for sharing these chunks with other peers. Peer A could register its Node-ID "1234" under these Video-ID and Chunk-IDs. Similarly, Peer B has received video chunks with Video-ID "Movie A" and Chunk-IDs "Chunk 1", "Chunk 2" and "Chunk 3" and register its Node-ID "5678" under these Video-ID and Chunk-IDs. When Peer C wants to match "Movie A" from the chunk with Chunk-ID "Chunk 2", it queries the overlay for "Movie A" and "Chunk 2" and gets back Node-IDs "1234" and "5678". Peer C then uses the overlay to establish a direct connection with Peer A and Peer B and can use that direct connection to perform media signaling process. This example is depicted as follows: Zong Expires December 30, 2009 [Page 4] Internet-Draft P2P Streaming Usage June 2009 Peer A Overlay Peers Peer B Peer C (1234) | (5678) | | | | | |StoreReq(MovieA, | | | | Chunk1/2)-->| | | |<------------StoreAns| | | | |<--StoreReq(MovieA, | | | | Chunk1/2/3)| | | |StoreAns------------>| | | | | | | |<-----------------------FetchReq(MovieA, | | | | Chunk 2)| | | FetchAns(1234/5678)-------------------->| | | | | | | |<----Attach------->| |<----------------------------Attach--------------------------->| | | | | | | |<----ICE Check---->| |<----------------------------ICE Check------------------------>| | | | | | | |<--Media Signal--->| |<------------------------Media Signaling---------------------->| | | | | | | |-----Media-------->| |-----------------------------Media---------------------------->| | | | | 3.1. Register Chunk Information In conventional C/S streaming cases, the media information (e.g. media file URL) can be obtained by media clients from the media server. In P2P streaming usage of RELOAD, each peer registers the information of the video chunks which have been received and ready for sharing with other peers, as well as locate video chunks from multiple peers through the RELOAD overlay. To register its chunk information, a RELOAD peer stores a PeerRegistrationData structure. This uses the PEER-REGISTRATION Kind-ID, which is formally defined in Section 3.2. As a simple example, if Peer A has obtained the video chunks with Video-ID "Movie A" and Chunk-IDs "Chunk 1", "Chunk 2" and its Node-ID is "1234", it may store the mapping "Movie A, Chunk 1/2 -> 1234" in the RELOAD overlay. This would tell anyone who wanted to watch "Movie A" from the Chunk with Chunk-ID "Chunk 1" or "Chunk 2" to contact node "1234". The contents of a PeerRegistrationData structure are as follows: Zong Expires December 30, 2009 [Page 5] Internet-Draft P2P Streaming Usage June 2009 struct { uint16 destination_id_list_length; Destination destination_id_list[destination_id_list_length]; } PeerRegistrationData; The contents of the PeerRegistrationData PDU are: destination_id_list_length: The number of the peers having registered the chunk. destination_id_list: The identifiers of peers who have registered the chunk. Note that RELOAD explicitly supports that multiple peers registration the same combination of Video-ID and Chunk-ID. For example, both Peer A and Peer B could register "Movie A" and "Chunk 1". Therefore, the registrations are stored in a Dictionary with dictionary values being PeerRegistrationData and dictionary keys being Node-IDs. So, let's say Peer A (with Node-ID "1234") has "Chunk 1" and "Chunk 2" of "Movie A" and Peer B (with Node-ID "5678") has "Chunk 1", "Chunk 2" and "Chunk 3" of "Movie A". Peer A would generate PeerResgistrationData of {1, [1234]}, and PeerB would create PeerRegistrationData {1, [5678]}. Then they would do the following stores (registers) into the overlay: Peer A: Movie A:Chunk 1 -> 1234, {1, [1234] } Movie A:Chunk 2 -> 1234, {1, [1234] } Peer B: Movie A:Chunk 1 -> 5678, {1, [5678] } Movie A:Chunk 2 -> 5678, {1, [5678] } Movie A:Chunk 3 -> 5678, {1, [5678] } 3.2. PEER-REGISTRATION Kind Definition PEER-REGISTRATION Kind-ID include: 1, Kind IDs. The Resource Name for the PEER-REGISTRATION is the combination of Video-ID and Chunk-ID. The data stored is a PeerRegistrationData, which contains the Node-IDs of peers who can provide the video chunks. Zong Expires December 30, 2009 [Page 6] Internet-Draft P2P Streaming Usage June 2009 2, Data Model. The data model for the PEER-REGISTRATION Kind is dictionary. The dictionary key is the Node-ID of the peer who can provide the video chunk. 3, Access Control. If certificate-based access control is being used, stored data of Kind PEER-REGISTRATION must be signed by a certificate which contains a Node-ID matching the storing dictionary key. 3.3. Lookup Chunk Information In P2P streaming usage of RELOAD, when a peer wants to match a video from certain chunk, it queries the overlay for the corresponding Video-ID and Chunk-ID and gets back the Node-IDs of the peers who can provide the video chunks. As a simple example, if Peer C wants to match "Movie A" from the chunk with Chunk-ID "Chunk 2", it performs a Fetch for kind PEER- REGISTRATION at Video-ID "Movie A" and Chunk-ID "Chunk 2". If this Fetch does not indicate any specific dictionary keys, it will result in fetching all the stored values, which is PeerRegistrationData as follows: Dictionary Results: 1234, {1, [1234] } 5678, {1, [5678] } Peer C then uses the overlay to establish direct connections with Peer A and Peer B and can use these direct connections to perform media signaling process and video transportation. 3.4. Extend PeerRegistrationData Note that the performance of chunk discovery would be increased by adding some fields to the PeerRegostrationData structure that lets a peer list all the chunks it has. That is, if Peer C searches for "Movie A" and "Chunk 2", it will find not only that both Peer A and Peer B have "Movie A" and "Chunk 2", but aslo Peer A has "Chunk 1" and Peer B has "Chunk 1", "Chunk 3". Peer C then would probably directly request Peer B to serve "Chunk 3" after "Chunk 2", without asking for the RELOAD to do a new lookup for "Chunk 3". The contents of the extended PeerRegistrationData structure are as follows: Zong Expires December 30, 2009 [Page 7] Internet-Draft P2P Streaming Usage June 2009 typedef opaque ChunkID[2]; struct { Destination destination_id; uint16 chunk_id_list_length; ChunkID chunk_id_list[chunk_id_list_length]; } DestChunkData struct { uint16 destination_id_list_length; DestChunkData destination_chunk_list[destination_id_list_length]; } PeerRegistrationData; The contents of the DestChunkData PDU are: ChunkID: A fixed-length 16-bit string. chunk_id_list_length: The number of the chunks owned by the peer. chunk_id_list: The identifiers of chunks owned by the peer. The contents of the extened PeerRegistrationData PDU are: destination_id_list_length: The number of the peers having registered the chunk. destination_chunk_list: The list of DestChunkData corresponding to the peers that register the chunk. Therefore, in the previous example, Peer A and Peer B would do the following stores (registers) into the overlay: Peer A: Movie A:Chunk 1 -> 1234, {1, [ {1234, 2, [Chunk 1, Chunk 2]} ] } Movie A:Chunk 2 -> 1234, {1, [ {1234, 2, [Chunk 1, Chunk 2]} ] } Peer B: Movie A:Chunk 1 -> 5678, {1, [ {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Movie A:Chunk 2 -> 5678, {1, [ {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Movie A:Chunk 3 -> 5678, {1, [ {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Zong Expires December 30, 2009 [Page 8] Internet-Draft P2P Streaming Usage June 2009 Similarly, if Peer C wants to match "Movie A" and "Chunk 2", it gets back the following results: Dictionary Results: 1234, {1, [ {1234, 2, [Chunk 1, Chunk 2]} ] } 5678, {1, [ {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } 4. Combine Data on the Storage Peer However, if there are many chunks (say more than 1000) in a movie, then a peer with the whole movie will have to perform many registrations to list all the things that it has registered. This would impact the RELOAD overlay as an inefficient way to do the chunk registration. 4.1. Register Chunk Information Now we define a new ChunkInfoData structure as follows: typedef opaque ChunkID[2]; struct { uint16 chunk_id_list_length; ChunkID chunk_id_list[chunk_id_list_length]; } ChunkInfoData; The contents of the ChunkInfoData PDU are: ChunkID: A fixed-length 16-bit string. chunk_id_list_length: The number of the chunks owned by the peer. chunk_id_list: The identifiers of chunks owned by the peer. Let's reuse the example in Section 3.1. Suppose that Peer A and Peer B both do the following stores (registers) into the overlay: Peer A: Movie A -> 1234, {2, [Chunk1,Chunk2]} Peer B: Movie A -> 5678, {3, [Chunk1,Chunk2,Chunk3]} Zong Expires December 30, 2009 [Page 9] Internet-Draft P2P Streaming Usage June 2009 It can be observed that the number of registrations performed by peers is largely reduced. 4.2. Combine Data The storage peer needs to re-arrage the stored data to: Movie A -> Chunk1, {2, [ {1234, 2, [Chunk 1, Chunk 2]}, {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Movie A -> Chunk2, {2, [ {1234, 2, [Chunk 1, Chunk 2]}, {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Movie A -> Chunk3, {1, [ {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } So, the registrations are stored in a Dictionary with dictionary values being PeerRegistrationData and dictionary keys being Chunk- IDs. 4.3. New PEER-REGISTRATION Kind Definition The new PEER-REGISTRATION Kind-ID include: 1, Kind IDs. The Resource Name for the new PEER-REGISTRATION is the Video-ID. The data stored is a PeerRegistrationData, which contains the Node-IDs of the peers who can provide the video. 2, Data Model. The data model for the new PEER-REGISTRATION Kind is dictionary. The dictionary key is the Chunk-ID of the chunk registered by the peers who can provide the video chunk. 3, Access Control. If certificate-based access control is being used, stored data of the new Kind PEER-REGISTRATION must be signed by a certificate which contains a Chunk-ID matching the storing dictionary key. 4.4. Lookup Chunk Information If Peer C wants to match "Movie A" from the chunk with Chunk-ID "Chunk 2", it performs a Fetch for kind PEER-REGISTRATION at Video-ID "Movie A" with dictionary key "Chunk2". It will send back dictionary results as follows: Dictionary Results: {2, [ {1234, 2, [Chunk 1, Chunk 2]}, {5678, 3, [Chunk 1, Chunk 2, Chunk 3]} ] } Zong Expires December 30, 2009 [Page 10] Internet-Draft P2P Streaming Usage June 2009 Peer C then uses the overlay to establish direct connections with Peer A and Peer B and can use these direct connections to perform media signaling process and video transportation. 4.5. New Requirement to Storage Peer It is now obviously required that the storage peer performes the combining of the chunk information data (with the data structure of ChunkInfoData) from different peers and convert them to the data structure of PeerRegistrationData. This capability of combining and converting data between different data structures would be a new functionality of RELOAD. 5. Open Issues Although the P2P streaming usage of RELOAD would be straightforward, it is still an open question that if the RELOAD is suitable for P2P streaming. 1, Searching Efficiency. P2P streaming applications normally require retrieving the real-time/para real-time video chunks quickly through the direct chunk information exchange among the peers. On the other hand, iterative and recursive routing process supported in RELAOD may not meet the real-time requirement of the P2P streaming [PPSP2]. 2, Working Load. P2P streaming applications need constant and more frequent support of RELOAD. On one hand, during the P2P streaming process, the requestor would constantly ask for RELOAD to lookup a new set of peers to serve next chunks of video. This is either because the current peers left or the requestor is not sure if the current peers can serve the next chunks of video. On the other hand, peers also need to constantly advise the chunks they have to the RELOAD to keep the chunk information updated on the RELOAD overlay. The need of constant support of RELOAD may impose a large burden on RELOAD, supposing that there are a large number (say hundreds of thousands) of simultaneously on-line P2P streaming peers. These issue of the performance of RELOAD on supporting P2P streaming applications need to be evaluated in both PPSP and P2PSIP communities. 6. A Combined Tracker and Peer Gossip Method The combined tracker and peer gossip method generally contains Zong Expires December 30, 2009 [Page 11] Internet-Draft P2P Streaming Usage June 2009 following components: 1. tracker communications. Peer reports to some centralized directory server (a.k.a. tracker) coarse information (i.e. Video-ID). When the tracker receives the video request from a peer, it returns to the requesting peer with a peer list (or, a swarm) in which the peers are sharing the requested video. 2. peer gossip. The grain information (i.e. Chunk-ID) is achieved by the requesting peer through directly communicating with the peers in the obtained peer list to exchange the chunk description. +---------------+ ------------>| Tracker |<------------------------ | +---------------+ | | | | | | Tracker Communications | | | | | V V | +--------+ Peer Gossip (Chunk Description) +--------+ | | |<------------------------------->| | | | Peer | | Peer | | | |<--------------------- | | | +--------+ | +--------+ | Peer Gossip | V (Chunk Description) | +--------+ | | | ---------------------->| Peer | | | +--------+ More Peers ... ... 6.1. Tracker Communication For example, Peer A is watching a video "Movie A" and ready for sharing this video with other peers. Peer A could report to the tracker by sending the Video-ID "Movie A" to the tracker. Similarly, Peer B is watching "Movie A" and register itself under the Video-ID "Movie A" to the tracker. Tracker then keep a record that both Peer A and Peer B would share "Movie A" with other peers. When Peer C wants to match "Movie A" , it firstly queries the tracker for the list of peers who would provide the video. It gets back Peer A and Peer B. Peer C then would communicate with both Peer A and Peer B to check who would serve the requested chunks of "Movie A". This exaple Zong Expires December 30, 2009 [Page 12] Internet-Draft P2P Streaming Usage June 2009 is shown as below: Peer A racker Peer B Peer C | | | | |Report(Movie A)--->| | | |<---------ReportAns| | | | | | | | |<---Report(Movie A)| | | |ReportAns--------->| | | | | | | |<-----------------------Request(Movie A)| | |RequestAns(Peer A/Peer B)-------------->| | | | | 6.2. Peer Gossip For example, even Peer C gets back the peer list including Peer A and Peer B, it still doesn't know who can serve the requested chunk (say "Chunk 3"). Therefore, Peer C needs to discover which peer would serve the request chunk of "Movie A". The chunk information (i.e. whick chunks are stored on which peers) can be achieved by directly communicating with both Peer A and Peer B to exchange the chunk description. Suppose that Peer A stores video chunks with Chunk-ID "Chunk 1", "Chunk 2" and Peer B stored "Chunk 1", "Chunk 2" and "Chunk 3". This exaple is illustrated as follows: Peer A Peer B Peer C | | | | <------------------------------------------ChunkDescReq | | ChunkDescAns(Chunk 1/2)-------------------------------> | | | | | | <--------------ChunkDescReq | | | ChunkDescAns(Chunk 1/2/3)-> | | | | | | <-----Media Signaling-----> | | | | | | ------Media---------------> | | | | Because only Peer B has the chunk with Chunk-ID of "Chunk 3", Peer C then requests the data of "Chunk 3" from Peer B by establishing a media connection with Peer B. 7. IANA Considerations TODO define PEER-REGISTRATION Kind-ID in the case of using RELOAD for P2P streaming chunk discovery, Zong Expires December 30, 2009 [Page 13] Internet-Draft P2P Streaming Usage June 2009 8. Security Considerations TODO describe security considerations when performing chunk discovery for P2P streaming. 9. Acknowledgements The authors would like to thank the following for their contributions to this document: David Bryan. TODO list more. 10. References 10.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [I-D.ietf-p2psip-base] Jennings, C., Lowekamp, B., Rescorla, E., Baset, S., and H. Schulzrinne, "REsource LOcation And Discovery (RELOAD) Base Protocol", draft-ietf-p2psip-base-02 (work in progress), March 2009. [I-D.ietf-p2psip-concepts] Bryan, D., Matthews, P., Shim, E., Willis, D., and S. Dawkins, "Concepts and Terminology for Peer to Peer SIP", draft-ietf-p2psip-concepts-02 (work in progress), July 2008. 10.2. Informative References [PPLive] "www.pplive.com". [PPStrm] "www.ppstream.com". [UUSee] "www.uusee.com". [SIGP2P] Huang, "Challenges, Design and Analysis of a Large-scale P2P-VoD System". [PPSP1] Zong, N. and X. Jiang, "Survey and Problem Statement of P2P Streaming", IETF PPSP BoF, November 2008. [PPSP2] Zhang, Y., Zong, N., Camarillo, G., Seng, J., and R. Yang, "Problem Statement of P2P Streaming Protocol (PPSP)", IETF PPSP BoF, May 2009. Zong Expires December 30, 2009 [Page 14] Internet-Draft P2P Streaming Usage June 2009 Author's Address Ning Zong (editor) Huawei Technologies 10F, Huihong Mansion, No.91 Baixia Road Nanjing 210001 China Phone: +86 25 84565866 Email: zongning@huawei.com Zong Expires December 30, 2009 [Page 15] --Boundary_(ID_zL2mL4UmFUNa3CVqFwB44Q) Content-type: message/rfc822 Content-disposition: inline Return-path: Received: from huawei.com ([172.24.2.3]) by szxmc04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0KLZ00ELQMQNXX@szxmc04-in.huawei.com> for zongning@huawei.com; Mon, 29 Jun 2009 14:44:47 +0800 (CST) Received: from szxga01-in (szxga01-in [172.24.2.3]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0KLZ0054GMQN8Z@szxga01-in.huawei.com> for zongning@huawei.com; Mon, 29 Jun 2009 14:44:47 +0800 (CST) Received: from szxrg04-in.huawei.com ([172.24.1.41]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0KLZ00GUDMLTO0@szxga01-in.huawei.com> for zongning@huawei.com (ORCPT zongning@huawei.com); Mon, 29 Jun 2009 14:44:47 +0800 (CST) Received: from localhost (localhost [127.0.0.1]) by szxrg04-in.huawei.com (MOS 3.10.5-GA) id CXA08774; Mon, 29 Jun 2009 14:44:47 +0800 (CST) Received: from mail.ietf.org (mail.ietf.org [64.170.98.32]) by szxrg04-in.huawei.com (MOS 3.10.5-GA) with ESMTP id CXA08709; Mon, 29 Jun 2009 14:44:38 +0800 (CST) Received: by core3.amsl.com (Postfix, from userid 30) id 912CC3A69F9; Sun, 28 Jun 2009 23:44:17 -0700 (PDT) Date: Sun, 28 Jun 2009 23:44:17 -0700 (PDT) From: IETF I-D Submission Tool Subject: New Version Notification for draft-zong-ppsp-chunk-discovery-00 To: zongning@huawei.com Message-id: <20090629064417.912CC3A69F9@core3.amsl.com> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 7BIT X-Junkmail-Status: score=10/50, host=szxrg04-in.huawei.com X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A010205.4A4862DE.01AF:SCFSTAT3674418,ss=1,fgs=0, ip=64.170.98.32, so=2009-03-06 19:59:02, dmn=5.7.1/2009-06-05, mode=single engine X-Junkmail-IWF: false X-Mirapoint-Loop-Id: 5d2a761648ca7561a0563a64c27215fc Original-recipient: rfc822;@szxmc04-in.huawei.com:zongning@huawei.com A new version of I-D, draft-zong-ppsp-chunk-discovery-00.txt has been successfuly submitted by Ning Zong and posted to the IETF repository. Filename: draft-zong-ppsp-chunk-discovery Revision: 00 Title: Chunk Discovery for P2P Streaming Creation_date: 2009-06-28 WG ID: Independent Submission Number_of_pages: 15 Abstract: This document describes several mechanisms of Chunk Discovery in P2P Streaming use case. The Chunk Discovery for P2P streaming provides the functionality of streaming sources registrar and discovery in a fully-distributed system. It provides register, update and lookup service for video chunks in the P2P Streaming applications. The mechanisms include a P2P streaming usage for REsource LOcation And Discovery (RELOAD), and a combined Trakcer and Peer Gossip method. The IETF Secretariat. --Boundary_(ID_zL2mL4UmFUNa3CVqFwB44Q)-- From osh93@etri.re.kr Sun Jun 28 23:55:07 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4D2223A6D3E for ; Sun, 28 Jun 2009 23:55:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 4.069 X-Spam-Level: **** X-Spam-Status: No, score=4.069 tagged_above=-999 required=5 tests=[AWL=2.320, BAYES_50=0.001, HELO_MISMATCH_INFO=1.448, MIME_8BIT_HEADER=0.3] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hou0gkCeFelb for ; Sun, 28 Jun 2009 23:55:06 -0700 (PDT) Received: from email2.etri.info (email2.etri.re.kr [129.254.16.132]) by core3.amsl.com (Postfix) with ESMTP id 6C2643A6D29 for ; Sun, 28 Jun 2009 23:55:06 -0700 (PDT) Received: from osh93x200 ([129.254.232.74]) by email2.etri.info with 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I have the same question= with=20 Mr.=EF=BC=AF=EF=BD=88=EF=BC=8EIn my point of view, authentication is a kind= of action a telecom system=20 must have.However in most of current p2p streaming systems,such an action i= s not=20 the basic functionality they have while regirstation is an action the = publishing node(server)must take.
Another question:What do= es the=20 session module mean?I think most of the process related to "session"is incl= uded=20 in the communication layer.
 
           =             &nb= sp;=20 Yunfei
 
zhangyunfei=
2009-06-30
=E5=8F=91=E4=BB=B6=E4=BA= =BA=EF=BC=9A=20 =EC=98=A4=EC=8A=B9=ED=9B=88=5F2009
=E5=8F=91=E9=80=81=E6=97= =B6=E9=97=B4=EF=BC=9A=20 2009-06-29 15:02:14
=E6=94=B6=E4=BB=B6=E4=BA= =BA=EF=BC=9A 'Alex Kyungho KIM';=20 'zhangyunfei'
=E6=8A=84=E9=80=81=EF=BC= =9A=20 ppsp@ietf.org
=E4=B8=BB=E9=A2=98=EF=BC= =9A RE: [ppsp] ***SPAM***=20 5.979 (5) RE: ***SPAM*** 7.949 (5)RE:initialproposal of PPSP component=20 architecture
 
Hello  Alex,  
 
Now  I  can  see  your  figure  properly= .=20  Thanks  for  your  re-drawing.  
One  question  about  figure  below:
The  components  in  "Information  Layer"  ar= e=20  a  little  different  from  the  original=20  one.
Registration  is  changed  into  'Auth'.  Is =  there  any  reason?  
 
Regards,
Seung-Hun  Oh
 
-----Original  Message-----
From:  zesus75@gmail.com  [mailto:zesus75@gmail.com]  O= n=20  Behalf  Of  Alex  Kyungho  KIM
Sent:  Friday,  June  26,  2009  8:43=20  PM
To:  zhangyunfei
Cc:  osh93@etri.re.kr;  ppsp@ietf.org
Subject:  Re:  [ppsp]  ***SPAM***  5.979  (5)= =20  RE:  ***SPAM***  7.949  (5)  RE:initialproposal=20  of  PPSP  component  architecture
 
Dear  all,
 
There  is  a  missing  line.
 
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
|  +-------------------------------------------------------------= +=20  |
|  |                 &nbs= p;=20                      = ;=20      Application  Layer         &nb= sp;=20                      = ;=20          |  |
|  |-------------------------------------------------------------= +=20  |
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
|  +-----------------------------+=20  +-----------------------------+  |
|  |  Play-out  Layer          = ;=20                  |  |=20  Information  Layer             &nb= sp;=20        |  |
|  |  +-------------------------+  |  |=20  +----+-------+------------+  |  |
|  |  |Playback(Play,Pause,Stop)|  |  |=20  |Auth|Session|Report/Stats|  |  |
|  |  +-------------------------+  |  |=20  +----+-------+------------+  |  |
|  +-----------------------------+=20  +-----------------------------+  |
|=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
|    Communication  Layer         &= nbsp;=20                      = ;=20                      = ;=20                      = ;=20            |
|  +------------------------+    =20  +--------------------------------+  |
|  |        Topology  Creation   &n= bsp;=20  |      |Head  Node/Tracker  Communication &n= bsp;|=20  |
|  +------------------------+    =20  +--------------------------------+  |
|  +------------------------+    =20  +--------------------------------+  |
|  |  Neighbor  Communication  |     &nb= sp;|=20                    Bootst= rap=20                      = ;=20    |  |
|  +------------------------+    =20  +--------------------------------+  |
|=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
|  +-------------------------------------------------------------= +=20  |
|  |                 &nbs= p;=20                      = ;=20    Transport  Layer            = ;=20                      = ;=20              |  |
|  +-------------------------------------------------------------= +=20  |
|=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
|  +-------------------------------------------------------------= +=20  |
|  |                 &nbs= p;=20                      = ;=20    Physical  Layer            = =20                      = ;=20                |  |
|  +-------------------------------------------------------------= +=20  |
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
 
 
Regards,
Alex
 
 
 
On  Fri,  Jun  26,  2009  at  8:04  = ;PM,=20  Alex  Kyungho  KIM <zesus@lge.com >  wrote:
>  Dear  Yunfei,
>
>  I  didn't  know  my  drawing  are =  disruptive.  :)
>
>=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
>  |=20  +-------------------------------------------------------------+=20  |
>  |  |               =                      = ;=20          Application  Layer     &nb= sp;=20                      = ;=20              |  |
>  |=20  |-------------------------------------------------------------+=20  |
>=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
>  |  +-----------------------------+=20  +-------------------------------+
>  |  |  Play-out  Layer       &= nbsp;=20                    | &nbs= p;|=20  Information  Layer             &nb= sp;=20            |
>  |  |  +-------------------------+  |  |= =20  +------+-------+------------+  |
>  |  |  |Playback(Play,Pause,Stop)|  |  |= =20  |  Auth  |Session|Report/Stats|  |
>  |  |  +-------------------------+  |  |= =20  +------+-------+------------+  |
>  |  +-----------------------------+=20  +-------------------------------+
>=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
>  |    Communication  Layer     &nbs= p;=20                      = ;=20                      = ;=20                      = ;=20                |
>  |  +------------------------+    =20  +--------------------------------+  |
>  |  |        Topology  Creatio= n=20      |      |Head  Node/Tracker=20  Communication  |  |
>  |  +------------------------+    =20  +--------------------------------+  |
>  |  +------------------------+    =20  +--------------------------------+  |
>  |  |  Neighbor  Communication  |  = =20    |                 &nbs= p;=20  Bootstrap                 &nb= sp;=20        |  |
>  |  +------------------------+    =20  +--------------------------------+  |
>=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
>  |=20  +-------------------------------------------------------------+=20  |
>  |  |               =                      = ;=20        Transport  Layer        = ;=20                      = ;=20                  |  |
>  |=20  +-------------------------------------------------------------+=20  |
>=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
>  |=20  +-------------------------------------------------------------+=20  |
>  |  |               =                      = ;=20        Physical  Layer        = =20                      = ;=20                    |=20  |
>  |=20  +-------------------------------------------------------------+=20  |
>=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
>
>
>  If  you  have  same  trouble,  Ple= ase=20  look  into  the  enclosed  TEXT  file.
>
>  My  recommendation  is  to  seperate=20  the  application  layer  and  any  lower
>  layer.  that  is  the  best  way=20  to  archive  the  flexiblity  and  more
>  extendible.
>
>  Regards,
>  Alex
>
>
>
>  2009/6/25  zhangyunfei  =20 <zhangyunfei@chinamobile.com >:
> >  Sorry,Alex,
> >        The  figure  cannot=20  display  rightly  in  the  email.Would  you =  please  send  it
> >  again  for  clarification?Thanks  in=20  advance.
> >
> >                 &nbs= p;=20            Yunfei
> >
> >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
> >  zhangyunfei
> >  2009-06-25
> >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
> >  =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A  Alex  = Kyungho  KIM
> >  =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A  20= 09-06-23  21:58:34
> >  =E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A  osh93@etri.= re.kr;  ppsp@ietf.org
> >  =E6=8A=84=E9=80=81=EF=BC=9A
> >  =E4=B8=BB=E9=A2=98=EF=BC=9A  Re:  [ppsp] &nb= sp;***SPAM***  5.979=20  (5)  RE:  ***SPAM***  7.949  (5)
> >  RE:initialproposal  of  PPSP  component= =20  architecture
> >
> >  Dear  my  colleagues,
> >  ?
> >  Thank  you  your?quick  response  = on=20  my  question
> >  ?
> >  So,  I  am  not  sure  what=20  you  concern  the  role  of  'Application=20  Layer'  is.  we
> >  agree  on  the  core  of=20  PPSP?would  be  the?communication  layer  in &nbs= p;the=20  OSI  7
> >  Layer  apsect.
> >  ?
> >  What  would  you  expect?any  prob= lems=20  happening  if  'Application  layer'  is=20  not
> >  face?on  'Communication  layer'???
> >  ?
> >  Let's  say  'Application  Layer'?is=20  able  to  access?the  'Play-out  layer;=20  and
> >  'Information  layer'  but  don't=20  'touch'  the  'Communication  layer'.  We=20  may
> >  extend  the  role  of  'Informatio= n=20  layer'  to  cover  some  functionality  of=20  what
> >  osh93  want.  It  could  be=20  'session  management'  which  is  relavant=20  to
> >  'Communication  layer'.
> >  ?
> >  How?do  you  think  of  this?
> >  ?
> >=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
> >  ?  |=20  +-------------------------------------------------------------+=20  |
> >  ?  |  |  ?  ?  ?  ? &nbs= p;?=20  ?  ?  ?  ?  ?  ?  Application  Lay= er=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  |  |
> >  ?  |=20  |---------------------------------------------------------------+=20  |
> >  ?=20  |?+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D|
> >  ?=20  |?+-----------------------------+--------------------------------+
> >  ???  |  ?  ?  Play-out  Layer= =20  ?  ?  |  ?  ?Information  Layer  ?=20  ?|
> >  ?=20  |?+-----------------------------+--------------------------------+
> >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> >  ?  |  ?Communication  Layer  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ?=20  ?|
> >  ?  |  +------------------------+  ?=20  +--------------------------------+  |
> >  ?  |  |  ?  ?Topology  Creati= on=20  ?  |  ?  |Head  Node/Tracker  Communication =  |  |
> >  ?  |  +------------------------+  ?=20  +--------------------------------+  |
> >  ?  |  +------------------------+  ?=20  +--------------------------------+  |
> >  ?  |  |  Neighbor  Communication=20  |  ?  |  ?  ?  ?  ?  ?Bootstrap &n= bsp;?=20  ?  ?  ?  ?  ?  |  |
> >  ?  |  +------------------------+  ?=20  +--------------------------------+  |
> >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> >  ?  |=20  +-------------------------------------------------------------+=20  |
> >  ?  |  |  ?  ?  ?  ? &nbs= p;?=20  ?  ?  ?  ?  ?  ?  Transport  Layer= =20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  |  |
> >  ?  |=20  +-------------------------------------------------------------+=20  |
> >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> >  ?
> >  Regards,
> >  Alex
> >  ?
> >  2009/6/23  ???=5F2009   <osh93@etri.re.kr= =20 >
> > >
> > >  Dear  Alex
> > >
> > >  ?
> > >
> > >  Sorry  for  my  ambiguous=20  expression.
> > >
> > >  That  means  that  =E2=80=98Applic= ation=20  Layer=E2=80=99  and  =E2=80=98Communication  Layer=E2= =80=99  are
> > >  adjacent.
> > >
> > >  Is  that  clear  now?
> > >
> > >  ?
> > >
> > >  Best  Regards,
> > >
> > >  Seung-Hun  Oh
> > >
> > >  ?
> > >
> > >  From:  zesus75@gmail.com=20  [mailto:zesus75@gmail.com]  On  Behalf  Of  Alex<= /DIV>
> > >  Kyungho  KIM
> > >  Sent:  Tuesday,  June  23,  2= 009=20  10:17  PM
> > >  To:  osh93@etri.re.kr
> > >  Subject:  Re:  [ppsp]  ***SPAM*** =  7.949  (5)  RE:  initial  proposal  of=20  PPSP
> > >  component  architecture
> > >
> > >  ?
> > >
> > >  Dear  osh93,
> > >
> > >  ?
> > >
> > >  This  is  high  level  diagra= m=20  to  make  someone  understand  our  work &nb= sp;or=20  what  we
> > >  are  doing.  You  have  sever= al=20  modifications  but  I  should  ask  you=20  a
> > >  question?about  your  proposal.
> > >
> > >  ?
> > >
> > >  I  am  not  clear  "touch=20  each  other"  in  your  comment.  What  = ;does=20  it  mean?
> > >
> > >  ?
> > >
> > >  Regards,
> > >
> > >  Alex
> > >
> > >  2009/6/23  ???=5F2009   <osh93@etri.= re.kr=20 >
> > >
> > >  Dear  yunfei
> > >
> > >  I  think  it  is  good  = idea=20  to  in  insert  this  figure  into  the= =20  PPSP  problem
> > >  statement  draft.
> > >  But  I  think  it  needs=20  more  clarification.
> > >
> > >  I  think  that  the  word,=20  'layer',  is  not  appropriate  for  'Play-o= ut=20  Layer'
> > >  and
> > >  'Information  Layer',  or  the=20  position  of  them  need  to  be  a=20  little  bit
> > >  modified.
> > >  As  you  know,  each  layer=20  must  be  vertically  related  in  communica= tion=20  world,
> > >  as  far  as  I  know.
> > >  Here  is  my  minor=20  proposal:
> > >  ?=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?  ?  ?  ?  ?  ?  ?  Application=20  Layer  ?  ?  ?  ?  ?  ?  ?  ?= =20  ?  ?  |  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?+--------------------------------------------------+  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?|  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D|
> > >  ?  |  |  ?  ?  ?  ?= =20  ?|  |  ?  ?  Play-out  Layer  ?  ?= =20  |  ?  ?Information  Layer  ?  ?|
> > >  ?  |  |  ?  ?  ?  ?= =20  ?|  |  ?+----+  ?+----+  ?+---+  |  ?=20  +----+  ?+----+  ?+---+  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?|  |  ?|  ?  ?|  ?|  ?  ?|  = ?|=20  ?  |  |  ?  |  ?  ?|  ?|  ?=20  ?|  ?|  ?  |  |
> > >  ?  |  +----------+  |  ?+----= +=20  ?+----+  ?+---+  |  ?  +----+  ?+----+=20  ?+---+  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |  ?Communication  Layer  = ?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?|
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  |  ?  ?Topology=20  Creation  ?  |  ?  |Head  Node/Tracker=20  Communication  |  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  |  Neighbor  Communicat= ion=20  |  ?  |  ?  ?  ?  ?  ?Bootstrap &n= bsp;?=20  ?  ?  ?  ?  ?  |  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?  ?  ?  ?  ?  ?  ?  Transport=20  Layer  ?  ?  ?  ?  ?  ?  ?  ?= =20  ?  ?  ?  |  |
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >
> > >  I  try  to  locate  both=20  'Play-out  Layer'  and  'Info.  Layer'  para= llely=20  and
> > >  'Application  Layer'  and=20  'Communication  Layer'  try  to  be  located= =20  to  touch
> > >  each  other.
> > >
> > >  These  are  just  my=20  opinion.
> > >
> > >  Best  Regards,
> > >
> > >  Seung-Hun  Oh
> > >
> > >
> > >  -----Original  Message-----
> > >  From:  ppsp-bounces@ietf.org=20  [mailto:ppsp-bounces@ietf.org]  On  Behalf  Of
> > >  zhangyunfei
> > >  Sent:  Tuesday,  June  23,  2= 009=20  7:01  PM
> > >  To:  ppsp@ietf.org
> > >  Subject:  [ppsp]  initial  proposa= l=20  of  PPSP  component  architecture
> > >
> > >
> > >  Dear  all,
> > >  ?  ?As  Gonzalo  suggested,PPSP=20  problem  statement  draft  is  better  to=20  include
> > >  a  figure  to  express  the=20  component  architecture.I  propose  the=20  following
> > >  layer  architecture  as  the=20  initial  input.The  components  architecuture  is= =20  as
> > >  follows:
> > >
> > >  ?=20  +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?  ?  ?  ?  ?  ?  ?  Application=20  Layer  ?  ?  ?  ?  ?  ?  ?  ?= =20  ?  ?  |  |
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |  ?Play-out  Layer  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  |
> > >  ?  |  ?+----------------+  ?=20  ?+---------------+  ?  ?+-----------------+  |
> > >  ?  |  ?|  ?  ?  start &n= bsp;?=20  ?  ?|  ?  ?|  ?  ?  ?Pause  ? &nbs= p;?|=20  ?  ?|  ?  ?  ?  Stop  ?  ?  ?= |=20  |
> > >  ?  |  ?+----------------+  ?=20  ?+---------------+  ?  ?+-----------------+  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |  ?Information  Layer  ? =  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?|
> > >  ?  |  ?+----------------+  ?=20  ?+---------------+  ?  ?+-----------------+  |
> > >  ?  |  ?|  ?Registration  ?|=20  ?  ?|  ?  ?  Report  ?  ?|  ? &nbs= p;?|=20  ?  ?Statistics  ?  |  |
> > >  ?  |  ?+----------------+  ?=20  ?+---------------+  ?  ?+-----------------+  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |  ?Communication  Layer  = ?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?  ?  ?  ?  ?  ?  ?  ?  ? &nb= sp;?=20  ?|
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  |  ?  ?Topology=20  Creation  ?  |  ?  |Head  Node/Tracker=20  Communication  |  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?  |  |  Neighbor  Communicat= ion=20  |  ?  |  ?  ?  ?  ?  ?Bootstrap &n= bsp;?=20  ?  ?  ?  ?  ?  |  |
> > >  ?  |  +------------------------+  = ?=20  +--------------------------------+  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?  |  |  ?  ?  ?  ?= =20  ?  ?  ?  ?  ?  ?  ?  Transport=20  Layer  ?  ?  ?  ?  ?  ?  ?  ?= =20  ?  ?  ?  |  |
> > >  ?  |=20  +-------------------------------------------------------------+=20  |
> > >  ?=20  |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D|
> > >
> > >  It  can  be  divided  into &n= bsp;5=20  layers:
> > >  1)Transport  Layer  is  responsibl= e=20  for  data  transmission  between  peers,
> > >  UDP,TCP  or  other  protocols &nbs= p;can=20  be  used;
> > >  2)Communicaton  layer  is  the=20  key  layer  in  PPSP,  including  four=20  components:
> > >  ?  ?  ?1)Topology  creation  = is=20  a  component  each  peer  has  to  requ= est=20  to  join
> > >  the  overlay,like  tree  or  = ?=20  ?mesh;
> > >  ?  ?  ?2)Head  Node/Tracker=20  Communication  is  a  component  each  peer<= /DIV>
> > >  continually  to  get  peer  l= ist=20  or  peer  info  report  to  the  tracke= r=20  or  head
> > >  node.
> > >  ?  ?  ?3)Neighbor  Communication=20  is  a  component  that  peers  exchange=20  bitmap  or
> > >  other  neigbor  availability=20  information  for  loop  avoidance(in  tree).
> > >  ?  ?  ?4)Bootstrap  is  a=20  component  to  introduce  a  newly  joined=20  node  to  get
> > >  the  tracker  or  head  node =  information.It  keeps  monitoring  the  trackers =  and
> > >  head  nodes.
> > >  3)Information  layer  is  a  = layer=20  that  nodes  register  to  the=20  system,publish
> > >  their  contents,report  their  use= ful=20  inforamation  beyond  those  in  the  peer
> > >  tracker  reporting  for  peer=20  selection  and  give  statistics  to  the
> > >  trackers.The  tracker  itself  als= o=20  use  statistic  and  report  module  for
> > >  global
> > >  control  in  upload  bandwidth=20  consumption,overhead  consumption  and  other
> > >  regards.
> > >  4)Play-out  layer  is  a  lay= er=20  to  control  the  action  of  the  medi= a=20  brower.RTSP
> > >  is  in  this  scope.
> > >  5)Application  layer  is  the &nbs= p;top=20  layer  in  the  ISO/OSI  model,where  PPSP
> > >  application  exists.
> > >
> > >  We  are  planning  to  add=20  this  part  in  the  Problem  statement=20  draft.Any
> > >  comments  are  welcome.
> > >
> > >  ?  ?  ?  ?BR
> > >
> > >  ?  ?  ?yunfei
> > >  ?  ?2009-06-23
> > >
> > >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F
> > >  ppsp  mailing  list
> > >  ppsp@ietf.org
> > >  https://www.ietf.org/mailman/listinfo/ppsp
> > >
> > >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F
> > >  ppsp  mailing  list
> > >  ppsp@ietf.org
> > >  https://www.ietf.org/mailman/listinfo/ppsp
> > >
> > >
> > >  --
> > >  Alex  Kyungho  KIM
> > >  LG  Electronics.
> > >  Senior  Research  Engineer
> > >  E-mail  ?:  zesus@lge.com
> > >  Office  ?:  +82  ?  2  2= 102=20  0111
> > >  Mobile  :  +82  10  7917=20  0406
> > >  FAX  ?  ?  :  +82  ? &nb= sp;2=20  2102  0140
> > >  DTV  Research  Laboratory,  LG=20  Electronics.
> > >  Seoul  University  Research  Park<= /DIV>
> > >  San  4-1,  BongCheon  7-Dong
> > >  KwanAk-Gu,Seoul,  151-919
> > >  The  Republic  of  Korea.
> > >
> > >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F
> > >  ppsp  mailing  list
> > >  ppsp@ietf.org
> > >  https://www.ietf.org/mailman/listinfo/ppsp
> > >
> >
> >
> >
> >  --
> >  Alex  Kyungho  KIM
> >  LG  Electronics.
> >  Senior  Research  Engineer
> >  E-mail  ?:  zesus@lge.com
> >  Office  ?:  +82  ?  2  2102=20  0111
> >  Mobile  :  +82  10  7917=20  0406
> >  FAX  ?  ?  :  +82  ?  2 =  2102  0140
> >  DTV  Research  Laboratory,  LG=20  Electronics.
> >  Seoul  University  Research  Park
> >  San  4-1,  BongCheon  7-Dong
> >  KwanAk-Gu,Seoul,  151-919
> >  The  Republic  of  Korea.
> >
> >  =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F
> >  ppsp  mailing  list
> >  ppsp@ietf.org
> >  https://www.ietf.org/mailman/listinfo/ppsp
> >
> >
>
>
>
>  --
>  Alex  Kyungho  KIM
>  LG  Electronics.
>  Senior  Research  Engineer
>  E-mail    :  zesus@lge.com
>  Office    :  +82      2  = ;2102=20  0111
>  Mobile  :  +82  10  7917  0406
>  FAX          :  +82   &n= bsp;=20  2  2102  0140
>  DTV  Research  Laboratory,  LG=20  Electronics.
>  Seoul  University  Research  Park
>  San  4-1,  BongCheon  7-Dong
>  KwanAk-Gu,Seoul,  151-919
>  The  Republic  of  Korea.
>
 
 
 
--  
Alex  Kyungho  KIM
LG  Electronics.
Senior  Research  Engineer
E-mail    :  zesus@lge.com
Office    :  +82      2  2102=20  0111
Mobile  :  +82  10  7917  0406
FAX          :  +82      = 2=20  2102  0140
DTV  Research  Laboratory,  LG  Electronics.
Seoul  University  Research  Park
San  4-1,  BongCheon  7-Dong
KwanAk-Gu,Seoul,  151-919
The  Republic  of  Korea.
--=====003_Dragon737817412523_=====-- From melodysong@huawei.com Tue Jun 30 22:50:07 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1A3153A6823 for ; Tue, 30 Jun 2009 22:50:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.211 X-Spam-Level: X-Spam-Status: No, score=0.211 tagged_above=-999 required=5 tests=[AWL=-0.783, BAYES_05=-1.11, FH_RELAY_NODNS=1.451, HELO_MISMATCH_COM=0.553, RDNS_NONE=0.1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4znstEWUJBuf for ; Tue, 30 Jun 2009 22:50:04 -0700 (PDT) Received: from szxga04-in.huawei.com (unknown [119.145.14.67]) by core3.amsl.com (Postfix) with ESMTP id 8A1983A6768 for ; Tue, 30 Jun 2009 22:50:04 -0700 (PDT) Received: from huawei.com (szxga04-in [172.24.2.12]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0KM300EUU9JRUT@szxga04-in.huawei.com> for ppsp@ietf.org; Wed, 01 Jul 2009 13:50:15 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0KM300NSG9JR3I@szxga04-in.huawei.com> for ppsp@ietf.org; Wed, 01 Jul 2009 13:50:15 +0800 (CST) Received: from s64081 ([10.164.12.15]) by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTPA id <0KM300JN69JPR4@szxml04-in.huawei.com> for ppsp@ietf.org; Wed, 01 Jul 2009 13:50:14 +0800 (CST) Date: Wed, 01 Jul 2009 13:50:13 +0800 From: Song Haibin To: ppsp@ietf.org Message-id: <00a201c9fa0f$cd91aee0$0f0ca40a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 X-Mailer: Microsoft Office Outlook 11 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Thread-index: Acn6D81PIPwuCvWLQX2zd1FbNFHzFw== Subject: [ppsp] about the spam alert X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Jul 2009 05:50:07 -0000 Dear all, Why are there so many spam alerts throught this list? Could anybody help to solve this problem? Best Regards, Haibin Skype: alexsonghw From hishigh@gmail.com Tue Jun 30 23:20:28 2009 Return-Path: X-Original-To: ppsp@core3.amsl.com Delivered-To: ppsp@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0A6223A6F0E for ; Tue, 30 Jun 2009 23:20:28 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.998 X-Spam-Level: X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_74=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EPUiqJ3RsQf5 for ; Tue, 30 Jun 2009 23:20:27 -0700 (PDT) Received: from mail-qy0-f198.google.com (mail-qy0-f198.google.com [209.85.221.198]) by core3.amsl.com (Postfix) with ESMTP id 310EF3A6C8F for ; Tue, 30 Jun 2009 23:20:27 -0700 (PDT) Received: by qyk36 with SMTP id 36so1071067qyk.29 for ; Tue, 30 Jun 2009 23:20:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=8654HOQj7hJ3WcHi3SZVIQsnzNcBwy38ekaQTOQqVOY=; b=t39hmgalkYvyhuMuYYpngaRuAFanspuddaj3qfd+bLQ1Jl01Hj0N5NGgs28eG1r+02 AKL6ryN3dL411AwXyTfn6hNUrINqODFsWT5ReQWiG0yy5tQBlL7If6vr8IujJK3gtF0F IGba2iFEbvW9LPJo++JW7VJiOHbL9LJ0mpWwI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=WhlpideYyzxaiFuwERRLJraT/y8DMtR/JYwt3aw21gmVh5kyKQQ/tz9IxL3qxt3efJ pcmfHV9uTyaM3tKrOtXumpYuSXU/0uRjZyZSrSeV0z03aDFLSIMMz3t4rilOMoVNdVc7 sbpoqibjFHMuEgiz4wzZnUvB3tcgGFrfBkF2o= MIME-Version: 1.0 Received: by 10.224.20.68 with SMTP id e4mr8344969qab.32.1246429246970; Tue, 30 Jun 2009 23:20:46 -0700 (PDT) Date: Wed, 1 Jul 2009 14:20:46 +0800 Message-ID: <8bd755250906302320r2d61920xed26bfef5f135594@mail.gmail.com> From: yunfei zhang To: stevey@amsl.com, "ppsp@ietf.org" Content-Type: multipart/alternative; boundary=0015175cba5e80f249046d9eec43 Subject: [ppsp] spam alert problem in PPSP mailing list. X-BeenThere: ppsp@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: discussing to draw up peer to peer streaming protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Jul 2009 06:20:28 -0000 --0015175cba5e80f249046d9eec43 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Dear Steve, There are some spam alerts when some subscribers of PPSP post their mails.Would you please help us to solve this problem?Many thanks in advance. BR Yunfei 2009/7/1, Song Haibin : > > Dear all, > > Why are there so many spam alerts throught this list? Could anybody help to > solve this problem? > > Best Regards, > Haibin > Skype: alexsonghw > > > > _______________________________________________ > ppsp mailing list > ppsp@ietf.org > https://www.ietf.org/mailman/listinfo/ppsp > --0015175cba5e80f249046d9eec43 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Dear Steve,
=A0=A0=A0 There are some spam alerts when some subscribers of PPSP pos= t their mails.Would you please help us to solve this problem?Many thanks in= advance.
=A0
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = BR
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0 Yunfei

=A0
2009/7/1, Song Haibin <melodysong@huawei.com>:
Dear all,

Why are there s= o many spam alerts throught this list? Could anybody help to
solve this = problem?

Best Regards,
Haibin
Skype: alexsonghw



___________= ____________________________________
ppsp mailing list
ppsp@ietf.org
https://www.ietf.org/mailman/listinfo/ppsp

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