From zhangyunfei@chinamobile.com Sun May 3 18:41:30 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 5375F3A6FFF for ; Sun, 3 May 2009 18:41:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -92.712 X-Spam-Level: X-Spam-Status: No, score=-92.712 tagged_above=-999 required=5 tests=[AWL=0.550, BAYES_50=0.001, HOST_MISMATCH_COM=0.311, 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 8+WG8AZ3dJUz for ; Sun, 3 May 2009 18:41:29 -0700 (PDT) Received: from cmccmta (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 18AD63A6C9D for ; Sun, 3 May 2009 18:40:52 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.174]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009050409420306-2432 ; Mon, 4 May 2009 09:42:03 +0800 Date: Mon, 4 May 2009 09:42:02 +0800 From: "zhangyunfei" To: "Vijay K. Gurbani" References: <200904301601146564090@chinamobile.com> <49F9AA39.40906@alcatel-lucent.com> Message-ID: <200905040942023129250@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 2009-05-04 09:42:03, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-05-04 09:42:18, Serialize complete at 2009-05-04 09:42:18 Content-Type: multipart/alternative; boundary="=====003_Dragon787260068420_=====" Cc: "ppsp@ietf.org" Subject: Re: [ppsp] FYI. 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PC9BPjwvRElWPjwvRk9OVD48L0RJVj48L0JPRFk+PC9IVE1MPg0K --=====003_Dragon787260068420_=====-- From vkg@alcatel-lucent.com Thu Apr 30 06:39:34 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 38A1B3A6D0E for ; Thu, 30 Apr 2009 06:39:34 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.521 X-Spam-Level: X-Spam-Status: No, score=-2.521 tagged_above=-999 required=5 tests=[AWL=0.078, BAYES_00=-2.599] 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 skxNTeIW4yko for ; Thu, 30 Apr 2009 06:39:33 -0700 (PDT) Received: from ihemail2.lucent.com (ihemail2.lucent.com [135.245.0.35]) by core3.amsl.com (Postfix) with ESMTP id 2FE6328C337 for ; Thu, 30 Apr 2009 06:39:33 -0700 (PDT) Received: from umail.lucent.com (h135-3-40-61.lucent.com [135.3.40.61]) by ihemail2.lucent.com (8.13.8/IER-o) with ESMTP id n3UDeBSI024773 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 30 Apr 2009 08:40:12 -0500 (CDT) Received: from [135.185.236.17] (il0015vkg1.ih.lucent.com [135.185.236.17]) by umail.lucent.com (8.13.8/TPES) with ESMTP id n3UDe9Mw019913; Thu, 30 Apr 2009 08:40:11 -0500 (CDT) Message-ID: <49F9AA39.40906@alcatel-lucent.com> Date: Thu, 30 Apr 2009 08:40:09 -0500 From: "Vijay K. Gurbani" Organization: Bell Labs Security Technology Research Group User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: Yunfei Zhang References: <200904301601146564090@chinamobile.com> In-Reply-To: <200904301601146564090@chinamobile.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.57 on 135.245.2.35 X-Mailman-Approved-At: Sun, 03 May 2009 18:42:38 -0700 Cc: "ppsp@ietf.org" Subject: Re: [ppsp] FYI. Network Coordinate Systems related papers 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, 30 Apr 2009 13:39:34 -0000 Yunfei Zhang wrote: > Hi,Softgear£¬ This is a good topic.To the best of my knowledge,there > is no practical systems to use coordinates to help peer > selection. While not directly related to p2p real-time streaming, other p2p applications do use coordinate systems. Vuze, for instance, uses Vivaldi. Thanks, - vijay -- Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA) Email: vkg@{alcatel-lucent.com,bell-labs.com,acm.org} Web: http://ect.bell-labs.com/who/vkg/ From saumitra@qualcomm.com Wed May 6 15:06:55 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 DA1FA3A6CA8 for ; Wed, 6 May 2009 15:06:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.496 X-Spam-Level: X-Spam-Status: No, score=-105.496 tagged_above=-999 required=5 tests=[AWL=1.103, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, 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 94s22KbJtQfT for ; Wed, 6 May 2009 15:06:54 -0700 (PDT) Received: from wolverine01.qualcomm.com (wolverine01.qualcomm.com [199.106.114.254]) by core3.amsl.com (Postfix) with ESMTP id 8285F3A6B72 for ; Wed, 6 May 2009 15:06:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qualcomm.com; i=saumitra@qualcomm.com; q=dns/txt; s=qcdkim; t=1241647695; x=1273183695; h=from:to:cc:date:subject:thread-topic:thread-index: message-id:references:in-reply-to:accept-language: content-language:x-ms-has-attach:x-ms-tnef-correlator: acceptlanguage:content-type:content-transfer-encoding: mime-version:x-ironport-av; z=From:=20"Das,=20Saumitra"=20|To: =20"Vijay=20K.=20Gurbani"=20,=0D =0A=20=20=20=20=20=20=20=20Yunfei=20Zhang=0D=0A=09|CC:=20"ppsp@ietf.org"=20|Date:=20Wed,=206=20May=202009=2015:08:09=20-0700 |Subject:=20RE:=20[ppsp]=20FYI.=20Network=20Coordinate=20 Systems=20related=20papers|Thread-Topic:=20[ppsp]=20FYI. =20Network=20Coordinate=20Systems=20related=20papers |Thread-Index:=20AcnMWdAsJ5SWSKr9TNGcs9cZ7ARofQCPRytA |Message-ID:=20<2D06DE445C2ADE44890118C3F449B9636ECDD167@ NASANEXMB12.na.qualcomm.com>|References:=20=0D=0A=09<20090430160114 6564090@chinamobile.com>=20<49F9AA39.40906@alcatel-lucent .com>|In-Reply-To:=20<49F9AA39.40906@alcatel-lucent.com> |Accept-Language:=20en-US|Content-Language:=20en-US |X-MS-Has-Attach:|X-MS-TNEF-Correlator:|acceptlanguage: =20en-US|Content-Type:=20text/plain=3B=20charset=3D"iso-8 859-1"|Content-Transfer-Encoding:=20quoted-printable |MIME-Version:=201.0|X-IronPort-AV:=20E=3DMcAfee=3Bi=3D"5 300,2777,5607"=3B=20a=3D"17859264"; bh=7Od7iK1yDW3UKVSzt6JdvE/A1Dk8k9w3v0CWiDKUxwI=; b=tbeUH5/x4ZTtH1QKVnnCMJ9Jg/zfWjMIidYfG87zhm131x2Zsqfr+GvN n2CzpzKStb2CjxIPZsHZsD+Nt4IhmarFwvyYgPe4+f1JP3MHFTlJH27de f6/7Vp1qbK2fzHDvWTtGxNqmdh9hmkHKYBnQBn/z7t/rNDvsa0KQjvtC3 I=; X-IronPort-AV: E=McAfee;i="5300,2777,5607"; a="17859264" Received: from pdmz-ns-mip.qualcomm.com (HELO ithilien.qualcomm.com) ([199.106.114.10]) by wolverine01.qualcomm.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 06 May 2009 15:08:15 -0700 Received: from hamtaro.qualcomm.com (hamtaro.qualcomm.com [129.46.61.157]) by ithilien.qualcomm.com (8.14.2/8.14.2/1.0) with ESMTP id n46M8EOX018243 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 6 May 2009 15:08:14 -0700 Received: from nasanexhub01.na.qualcomm.com (nasanexhub01.na.qualcomm.com [10.46.93.121]) by hamtaro.qualcomm.com (8.14.2/8.14.2/1.0) with ESMTP id n46M8BEH021511 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT); Wed, 6 May 2009 15:08:13 -0700 (PDT) Received: from NASANEXMB12.na.qualcomm.com ([10.45.78.34]) by nasanexhub01.na.qualcomm.com ([10.46.93.121]) with mapi; Wed, 6 May 2009 15:08:11 -0700 From: "Das, Saumitra" To: "Vijay K. Gurbani" , Yunfei Zhang Date: Wed, 6 May 2009 15:08:09 -0700 Thread-Topic: [ppsp] FYI. Network Coordinate Systems related papers Thread-Index: AcnMWdAsJ5SWSKr9TNGcs9cZ7ARofQCPRytA Message-ID: <2D06DE445C2ADE44890118C3F449B9636ECDD167@NASANEXMB12.na.qualcomm.com> References: <200904301601146564090@chinamobile.com> <49F9AA39.40906@alcatel-lucent.com> In-Reply-To: <49F9AA39.40906@alcatel-lucent.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "ppsp@ietf.org" Subject: Re: [ppsp] FYI. Network Coordinate Systems related papers 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, 06 May 2009 22:06:56 -0000 Important point to remember here is that network coordinates only optimize = network locality (nodes close to each other are close in the coordinate spa= ce). PSPP will ikely require a coordinate embedding that brings nodes that = can transfer content well together in the coordinate space. This may not be= tied to RTT as much and may depend more on ISP friendliness and available = bandwith. Thanks Saumitra -----Original Message----- From: ppsp-bounces@ietf.org [mailto:ppsp-bounces@ietf.org] On Behalf Of Vij= ay K. Gurbani Sent: Thursday, April 30, 2009 6:40 AM To: Yunfei Zhang Cc: ppsp@ietf.org Subject: Re: [ppsp] FYI. Network Coordinate Systems related papers Yunfei Zhang wrote: > Hi,Softgear=A3=AC This is a good topic.To the best of my knowledge,there > is no practical systems to use coordinates to help peer > selection. While not directly related to p2p real-time streaming, other p2p applications do use coordinate systems. Vuze, for instance, uses Vivaldi. Thanks, - vijay --=20 Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA) Email: vkg@{alcatel-lucent.com,bell-labs.com,acm.org} Web: http://ect.bell-labs.com/who/vkg/ _______________________________________________ ppsp mailing list ppsp@ietf.org https://www.ietf.org/mailman/listinfo/ppsp From victor.pascual.avila@gmail.com Wed May 20 02:08:13 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 F0B2D3A711C for ; Wed, 20 May 2009 02:08:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.269 X-Spam-Level: X-Spam-Status: No, score=-2.269 tagged_above=-999 required=5 tests=[AWL=0.030, BAYES_00=-2.599, 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 uBv46qkabCXf for ; Wed, 20 May 2009 02:08:13 -0700 (PDT) Received: from mail-bw0-f222.google.com (mail-bw0-f222.google.com [209.85.218.222]) by core3.amsl.com (Postfix) with ESMTP id B7B8F3A7118 for ; Wed, 20 May 2009 02:08:12 -0700 (PDT) Received: by bwz22 with SMTP id 22so274456bwz.37 for ; Wed, 20 May 2009 02:09:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=U2HrkUFtkruuXtbOiva8usKySCme99lmmSPNIrFXmXo=; b=wqX7C+BWeiViQiOF1wZuQPRhGpfKQVSEZ/ZFpMFVzYoNdD3nI0McjF662tTtBbGJYq HcL84Vv4u1dBP35RgkRISREAsOk2pq6/rsl1WfFPYXkdMgZBL7grasxCCKr9w93/vYhA j8K1QCO5HmPOQ/Pt6G9/G3fD2uzx3Tb54NmsY= 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=EmwRNf5Z4kcoP+LeLxCbbe2oh9dH1PjTdjhfHsDhy2qv/V9p0xAOUvqiH2xmG7/UGX YkCzGeFOG+5Ky/QkvQYIkYkq2WtpKvyd1FBAMGJDCtouIwN5Dgfs1yInyjNo+hkSF5Pi +C4FKPFj4o7/fnxyc3D12HWfVluTragm2jUFo= MIME-Version: 1.0 Received: by 10.204.69.66 with SMTP id y2mr1036480bki.49.1242810585949; Wed, 20 May 2009 02:09:45 -0700 (PDT) In-Reply-To: <6D5990B2-9100-4AC8-89D3-BDEE27A002E5@apple.com> References: <6D5990B2-9100-4AC8-89D3-BDEE27A002E5@apple.com> Date: Wed, 20 May 2009 11:09:45 +0200 Message-ID: <618e24240905200209qf49fec9g19128dfdbe31b9c9@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: [AVT] iPhone streaming Internet-Draft posted 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, 20 May 2009 09:08:14 -0000 FYI ---------- Forwarded message ---------- From: Roger Pantos Date: Fri, May 1, 2009 at 10:24 PM Subject: [AVT] iPhone streaming Internet-Draft posted To: avt@ietf.org Cc: http-live-streaming-review@group.apple.com My apologies if this is a bit off-topic - it concerns Audio/Video Transport rather than RTP specifically. I just posted draft-pantos-http-live-streaming-00.txt: =C2=A0 This document describes a protocol for transmitting unbounded stream= s =C2=A0 of multimedia data over HTTP. =C2=A0It specifies the data format of = the =C2=A0 files and the actions to be taken by the server (sender) and the =C2=A0 clients (receivers) of the streams. =C2=A0It describes version 1.0 o= f this =C2=A0 protocol. The complete draft =C2=A0is available here: https://datatracker.ietf.org/drafts/draft-pantos-http-live-streaming/ We appreciate feedback on the protocol. Please send it to http-live-streaming-review@group.apple.com. thank you, Roger Pantos Apple, Inc. _______________________________________________ Audio/Video Transport Working Group avt@ietf.org https://www.ietf.org/mailman/listinfo/avt --=20 Victor Pascual =C3=81vila From zhangyunfei@chinamobile.com Wed May 20 02:43:00 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 1CE5F3A6BDE for ; Wed, 20 May 2009 02:43:00 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -93.274 X-Spam-Level: X-Spam-Status: No, score=-93.274 tagged_above=-999 required=5 tests=[AWL=1.088, BAYES_00=-2.599, HOST_MISMATCH_COM=0.311, HTML_MESSAGE=0.001, J_CHICKENPOX_43=0.6, J_CHICKENPOX_81=0.6, MIME_8BIT_HEADER=0.3, 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 zXRbbSOUNm7W for ; Wed, 20 May 2009 02:42:59 -0700 (PDT) Received: from cmccmta (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 914833A6919 for ; Wed, 20 May 2009 02:42:55 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.1.4.113]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009052017441053-16041 ; Wed, 20 May 2009 17:44:10 +0800 Date: Wed, 20 May 2009 17:44:05 +0800 From: "zhangyunfei" To: "=?gb2312?B?VmljdG9yX1Bhc2N1YWxfqKJ2aWxh?=" , "ppsp@ietf.org" References: <6D5990B2-9100-4AC8-89D3-BDEE27A002E5@apple.com> <618e24240905200209qf49fec9g19128dfdbe31b9c9@mail.gmail.com> Message-ID: <200905201744052032452@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 2009-05-20 17:44:10, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-05-20 17:44:34, Serialize complete at 2009-05-20 17:44:34 Content-Type: multipart/alternative; boundary="=====003_Dragon345167833514_=====" Subject: Re: [ppsp] Fwd: [AVT] iPhone streaming Internet-Draft posted 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, 20 May 2009 09:43:00 -0000 This is a multi-part message in MIME format. --=====003_Dragon345167833514_===== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gb2312" VGhhbmtzIGZvciBWaWN0b3IncyBpbmZvbWF0aW9uLg0KVGhpcyBpcyBiYXNpY2FsbHkgYSBzaWdu YWxpbmcgcHJvdG9jb2wgd2hpY2ggY2FuIHJlYWxseSBiZSByZWdhcmRlZCBhcyBQUFNQJ3MgY291 bnRlcnBhcnQgYmVjYXVzZSBpdCBpbnZvbHZlcyB0byBzb21lIGV4dGVudCBpbiB0aGUgcHJvYmxl bSBvZiAiaG93IHRvIGxvY2F0ZSB0aGUgc3RyZWFtL2ZpbGUgaW4gY2xpZW50L3NlcnZlciBlbnZp 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by9wcHNwPC9ESVY+PC9GT05UPjwvRElWPjwvQk9EWT48L0hUTUw+DQo= --=====003_Dragon345167833514_=====-- From victor.pascual.avila@gmail.com Wed May 20 02:48:01 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 CEB713A6874 for ; Wed, 20 May 2009 02:48:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.97 X-Spam-Level: X-Spam-Status: No, score=-1.97 tagged_above=-999 required=5 tests=[AWL=-0.271, BAYES_00=-2.599, J_CHICKENPOX_43=0.6, 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 LXcDbsvAUEHl for ; Wed, 20 May 2009 02:48:01 -0700 (PDT) Received: from mail-fx0-f158.google.com (mail-fx0-f158.google.com [209.85.220.158]) by core3.amsl.com (Postfix) with ESMTP id E68BB3A686D for ; Wed, 20 May 2009 02:48:00 -0700 (PDT) Received: by fxm2 with SMTP id 2so302242fxm.37 for ; Wed, 20 May 2009 02:49:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=wawDpFzknk/WSaLQb7wHdB+lPsZ2FUccU1/XNHyq7V4=; b=BjGOIAzbaODnjXLLRUe+4FPAQbn3rqdqH6DmOB8p6NpRhHQVllBrPeuKXVc2V37Lf+ Bcxj+QIf0b7TLRLJXW/FdjCNlLRgcrHD82iB2G3vh2DRGgAOugcDIM2NPZcNAUGQSgsb JRxcU/degVykji7x+7Hnt9d/1zxIUsyD7ljlw= 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 :cc:content-type:content-transfer-encoding; b=B0Sn/mVfj09dA/ibTPk++r7bzeA0oSWUaHcJwUF0U0U3qssDEkoFt9Jnko7n3iHHs7 1E3VY5LIjt6okUZbo/PE8SDYJ/r+j755ADaBZ1dN2rGmUlwHfqSE41J+qrgxh+/AVtWd EzE0b0UJhHzYMZfXn7rP3lsyIR9/8LcPY73m8= MIME-Version: 1.0 Received: by 10.204.124.10 with SMTP id s10mr1068605bkr.34.1242812975465; Wed, 20 May 2009 02:49:35 -0700 (PDT) In-Reply-To: <200905201744052032452@chinamobile.com> References: <6D5990B2-9100-4AC8-89D3-BDEE27A002E5@apple.com> <618e24240905200209qf49fec9g19128dfdbe31b9c9@mail.gmail.com> <200905201744052032452@chinamobile.com> Date: Wed, 20 May 2009 11:49:35 +0200 Message-ID: <618e24240905200249p21e16d6era7d556250c2fb0bd@mail.gmail.com> From: =?UTF-8?Q?Victor_Pascual_=C3=81vila?= To: zhangyunfei Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: "ppsp@ietf.org" Subject: Re: [ppsp] Fwd: [AVT] iPhone streaming Internet-Draft posted 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, 20 May 2009 09:48:01 -0000 2009/5/20 zhangyunfei : > One thing to be curious is that:Isn't there any similar existing protocol > considering that c/s live streaming has occur for quite=C2=A0 a long time= ,say,10 > or 20 years? I encourage you to follow the discussion: http://www.ietf.org/mail-archive/web/avt/current/msg11195.html Regards, -Victor From zhangyunfei@chinamobile.com Wed May 20 18:37:17 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 9BF383A6BE6 for ; Wed, 20 May 2009 18:37:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -92.296 X-Spam-Level: X-Spam-Status: No, score=-92.296 tagged_above=-999 required=5 tests=[AWL=0.066, BAYES_50=0.001, HOST_MISMATCH_COM=0.311, HTML_MESSAGE=0.001, J_CHICKENPOX_43=0.6, MIME_8BIT_HEADER=0.3, 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 U815MYasDcJI for ; Wed, 20 May 2009 18:37:17 -0700 (PDT) Received: from cmccmta (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id 51A553A698C for ; Wed, 20 May 2009 18:37:14 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.2.0.95]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009052109384253-2580 ; Thu, 21 May 2009 09:38:42 +0800 Date: Thu, 21 May 2009 09:38:43 +0800 From: "zhangyunfei" To: "=?gb2312?B?VmljdG9yX1Bhc2N1YWxfqKJ2aWxh?=" References: <6D5990B2-9100-4AC8-89D3-BDEE27A002E5@apple.com> <618e24240905200209qf49fec9g19128dfdbe31b9c9@mail.gmail.com> <200905201744052032452@chinamobile.com> <618e24240905200249p21e16d6era7d556250c2fb0bd@mail.gmail.com> Message-ID: <200905210938435627803@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 2009-05-21 09:38:42, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-05-21 09:38:53, Serialize complete at 2009-05-21 09:38:53 Content-Type: multipart/alternative; boundary="=====003_Dragon021144116276_=====" Cc: "ppsp@ietf.org" Subject: Re: [ppsp] Fwd: [AVT] iPhone streaming Internet-Draft posted 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, 21 May 2009 01:37:17 -0000 This is a multi-part message in MIME format. --=====003_Dragon021144116276_===== Content-Transfer-Encoding: base64 Content-Type: text/plain; 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Mon, 25 May 2009 07:31:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.76 X-Spam-Level: X-Spam-Status: No, score=-0.76 tagged_above=-999 required=5 tests=[BAYES_05=-1.11, HELO_EQ_DE=0.35] 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 P4W7TBiV09vy; Mon, 25 May 2009 07:31:51 -0700 (PDT) Received: from mo-p00-ob.rzone.de (mo-p00-ob.rzone.de [81.169.146.162]) by core3.amsl.com (Postfix) with ESMTP id 11F7C3A6978; Mon, 25 May 2009 07:31:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; t=1243262011; l=1774; s=domk; d=nomor.de; h=References:Date:Subject:Mime-Version:Content-Transfer-Encoding: Content-Type:In-Reply-To:To:From:Cc:X-RZG-CLASS-ID:X-RZG-AUTH; bh=NzP106yf5g9WO0mPHLfjxEuotc4=; b=zBrq31O4BKHB8EUbJm2LCZYibR9m78706dok62H/ofRFD89+CXyviMr8zcoxT5Q861m 8mEAtwg3Mb+lbs50zWk1PMbHMtNmz+vB/iy0MJg+wePJ4reQQ3fgy8lAZN6NLMnLXdrwa fLjVJadAOREKDRCZj3wpc/3tqqh6T5tyLbY= X-RZG-AUTH: :P3gLdkugevKirJkjH/RoTtk5THWq6nlFgKpnuMPeiu18+1EZfOQVAS4z6gUSvLg= X-RZG-CLASS-ID: mo00 Received: from [192.168.0.165] (dialbs-213-023-252-114.static.arcor-ip.net [213.23.252.114]) by post.strato.de (fruni mo36) (RZmta 18.37) with ESMTP id x039d8l4PEN4Gm ; Mon, 25 May 2009 16:33:26 +0200 (MEST) Message-Id: <5AB53BB4-72A7-46E3-9A3E-E53E246D6A14@nomor.de> From: Thomas Stockhammer To: David Singer In-Reply-To: Content-Type: text/plain; charset=WINDOWS-1252; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Apple Message framework v935.3) Date: Mon, 25 May 2009 16:33:26 +0200 References: <302f570905221154t7feb4162s6728f9dc2c736592@mail.gmail.com> <31d1be720905221451t844a033ufe37b44884b56f83@mail.gmail.com> <302f570905221508q637770ebi89582187526d1594@mail.gmail.com> X-Mailer: Apple Mail (2.935.3) Cc: ppsp@ietf.org, avt@ietf.org Subject: Re: [ppsp] [AVT] Comments on draft-pantos-http-live-streaming-00.txt ... 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, 25 May 2009 14:31:52 -0000 Dave, all, DVB has started a similar effort in a study mission and a =20 questionnaire. Contributions of DVB and non DVB members are welcome. http://www.dvb.org/news_events/news/internet-tv-questionnaire/index.xml Best regards Thomas On May 23, 2009, at 3:26 AM, David Singer wrote: > Well, not really comments on the draft; more to thank Mike for =20 > pointing out that there is a 'question' in the industry, and that =20 > perhaps existing techniques ('pure' RTP or MPEG-2 Transport or =20 > existing file download) are not working so well. > > A few people at MPEG have noticed this as well, and are also asking =20= > the question. It's by no means clear what should be done, or where, =20= > or by whom, but they are stepping up to holding an open workshop. I =20= > don't get the sense from the organizers that there is any kind of =20 > 'position' being taken here (yet), not even on whether or where =20 > something should be done, let alone what. > > Have a look at this page and see whether some of you would like to =20 > write something (separately, jointly), or attend: > = > > --=20 > David Singer > Multimedia Standards, Apple Inc. > _______________________________________________ > Audio/Video Transport Working Group > avt@ietf.org > https://www.ietf.org/mailman/listinfo/avt --- Dr. Thomas Stockhammer (CEO) || http://www.nomor.de || phone +49 89 =20 978980 02 || cell +49 172 5702667 Nomor Research GmbH - Sitz der Gesellschaft: M=FCnchen - =20 Registergericht: M=FCnchen, HRB 165856 =96 Umsatzsteuer-ID: DE238047637 = - =20 Gesch=E4ftsf=FChrer: Dr. Thomas Stockhammer, Dr. Ingo Viering. From gherlein@herlein.com Mon May 25 10:13:57 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 E4C793A6832; Mon, 25 May 2009 10:13:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.346 X-Spam-Level: X-Spam-Status: No, score=-0.346 tagged_above=-999 required=5 tests=[AWL=-0.784, BAYES_40=-0.185, FM_FORGED_GMAIL=0.622, 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 UeaswMRXk-r7; Mon, 25 May 2009 10:13:50 -0700 (PDT) Received: from mail-pz0-f180.google.com (mail-pz0-f180.google.com [209.85.222.180]) by core3.amsl.com (Postfix) with ESMTP id 9F4053A6A57; Mon, 25 May 2009 10:13:50 -0700 (PDT) Received: by pzk10 with SMTP id 10so2159155pzk.29 for ; Mon, 25 May 2009 10:15:29 -0700 (PDT) MIME-Version: 1.0 Received: by 10.142.177.5 with SMTP id z5mr2335491wfe.32.1243271729691; Mon, 25 May 2009 10:15:29 -0700 (PDT) In-Reply-To: <5AB53BB4-72A7-46E3-9A3E-E53E246D6A14@nomor.de> References: <302f570905221154t7feb4162s6728f9dc2c736592@mail.gmail.com> <31d1be720905221451t844a033ufe37b44884b56f83@mail.gmail.com> <302f570905221508q637770ebi89582187526d1594@mail.gmail.com> <5AB53BB4-72A7-46E3-9A3E-E53E246D6A14@nomor.de> Date: Mon, 25 May 2009 10:15:29 -0700 Message-ID: <31d1be720905251015r293c20e4x57038f4e2797b497@mail.gmail.com> From: Greg Herlein To: Thomas Stockhammer Content-Type: multipart/alternative; boundary=000e0cd14eeecebe60046abfc1a5 Cc: ppsp@ietf.org, David Singer , avt@ietf.org Subject: Re: [ppsp] [AVT] Comments on draft-pantos-http-live-streaming-00.txt ... 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, 25 May 2009 17:13:58 -0000 --000e0cd14eeecebe60046abfc1a5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit In a shameless plug for us all, I blogged about this subject, for what it's worth. http://www.herlein.com/index.php?entry=entry090525-092231 -- Greg Herlein www.herlein.com --000e0cd14eeecebe60046abfc1a5 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit In a shameless plug for us all, I blogged about this subject, for what it's worth.

http://www.herlein.com/index.php?entry=entry090525-092231


--
Greg Herlein
www.herlein.com
--000e0cd14eeecebe60046abfc1a5-- From zhangyunfei@chinamobile.com Wed May 27 04:06:20 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 5F77C3A7034 for ; Wed, 27 May 2009 04:06:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -94.684 X-Spam-Level: X-Spam-Status: No, score=-94.684 tagged_above=-999 required=5 tests=[AWL=2.450, BAYES_05=-1.11, HTML_MESSAGE=0.001, MIME_BASE64_TEXT=1.753, 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 oBllGkImSNhZ for ; Wed, 27 May 2009 04:06:15 -0700 (PDT) Received: from cmccmta.chinamobile.com (cmccmta.chinamobile.com [221.130.253.133]) by core3.amsl.com (Postfix) with ESMTP id D09D03A702D for ; Wed, 27 May 2009 04:05:57 -0700 (PDT) Received: from LENOVO-917FFE55 ([10.2.0.158]) by mail.chinamobile.com (Lotus Domino Release 6.5.5FP1) with SMTP id 2009052719063977-16590 ; Wed, 27 May 2009 19:06:39 +0800 Date: Wed, 27 May 2009 19:06:35 +0800 From: "zhangyunfei" To: "ppsp@ietf.org" Message-ID: <200905271906318282982@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 2009-05-27 19:06:39, Serialize by Router on cmccmta/servers/cmcc(Release 6.5.5FP1 | April 14, 2006) at 2009-05-27 19:07:41 Content-Type: multipart/mixed; boundary="=====001_Dragon506116524503_=====" Subject: [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, 27 May 2009 11:06:20 -0000 --=====001_Dragon506116524503_===== Content-Type: multipart/alternative; boundary="=====003_Dragon506116524503_=====" --=====003_Dragon506116524503_===== Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="gb2312" 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 --=====003_Dragon506116524503_===== Content-Transfer-Encoding: base64 Content-Type: text/html; charset="gb2312" PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgaHR0cC1lcXVpdj1Db250ZW50LVR5cGUgY29udGVu dD0idGV4dC9odG1sOyBjaGFyc2V0PWdiMjMxMiI+DQo8TUVUQSBjb250ZW50PSJNU0hUTUwgNi4w MC4yOTAwLjM0OTIiIG5hbWU9R0VORVJBVE9SPjwvSEVBRD4NCjxCT0RZPg0KPERJVj48Rk9OVCBm YWNlPVZlcmRhbmEgc2l6ZT0yPkRlYXIgYWxsLDwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFj ZT1WZXJkYW5hIHNpemU9Mj4mbmJzcDsmbmJzcDsmbmJzcDsmbmJzcDtBdHRhY2hlZCBpcyB0aGUg aW5pdGlhbCANCnZlcnNpb24gb2YgcHBzcCBjaGFydGVyLkkndmUgYWxzbyBzdWJtaXR0ZWQgYSBu 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X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXzwvRElWPg0KPERJ Vj4mZ3Q7ICZuYnNwO3Bwc3AgJm5ic3A7bWFpbGluZyAmbmJzcDtsaXN0PC9ESVY+DQo8RElWPiZn dDsgJm5ic3A7cHBzcEBpZXRmLm9yZzwvRElWPg0KPERJVj4mZ3Q7ICZuYnNwO2h0dHBzOi8vd3d3 LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8vcHBzcDwvRElWPg0KPERJVj4mZ3Q7ICZuYnNwOyAm bmJzcDsgJm5ic3A7PC9ESVY+DQo8RElWPiZuYnNwOzwvRElWPjwvRk9OVD48L0RJVj48L0JPRFk+ PC9IVE1MPg0K --=====003_Dragon424230268688_=====-- From yry@cs.yale.edu Sun May 31 20:09:43 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 4B9DE3A6827 for ; Sun, 31 May 2009 20:09:43 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.585 X-Spam-Level: X-Spam-Status: No, score=-3.585 tagged_above=-999 required=5 tests=[BAYES_40=-0.185, J_CHICKENPOX_54=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 9uP2G0IuLPvA for ; Sun, 31 May 2009 20:09:42 -0700 (PDT) Received: from netra.cs.yale.edu (netra.cs.yale.edu [128.36.229.21]) by core3.amsl.com (Postfix) with ESMTP id 41ED63A69A9 for ; Sun, 31 May 2009 20:09:42 -0700 (PDT) Received: from cyndra.cs.yale.edu (cyndra.cs.yale.edu [128.36.229.87]) by netra.cs.yale.edu (Postfix) with ESMTP id EE569C251DA; Sun, 31 May 2009 23:09:41 -0400 (EDT) Date: Sun, 31 May 2009 23:09:41 -0400 (EDT) From: "Y. R. Yang" To: zhangyunfei In-Reply-To: <200906010957174372358@chinamobile.com> Message-ID: References: <200905271906318282982@chinamobile.com> <4A1E7445.3080704@ericsson.com> <200906010957174372358@chinamobile.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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: Mon, 01 Jun 2009 03:09:43 -0000 Hi Salvatore, Just to add some to Yunfei's reply. Please see below. On Mon, 1 Jun 2009, 9:57am +0800, zhangyunfei wrote: > Hi Salvatore, > Thanks for your questions.Please see inline for the reply. > > Yunfei > > > > > zhangyunfei > 2009-06-01 > > > > ???: Salvatore Loreto > ????: 2009-05-28 19:23:55 > ???: zhangyunfei > ??: > ??: Re: [ppsp] ppsp charter and problem statement draft > > Hi Yunfei, > > I have read the draft, and I have a perhaps a more research relate The Problem Statement draft is in rough draft. Any comments are greatly appriated. I think Yunfei will upload a newer version this week. > question, actually two questions > > 1) you state that is well demonstrated that P2P streaming works, but it > is not clear if you are talking of stored streaming, or live > streaming and if there are any difference to deliver this two kind of > stream in a P2P network > > Reply:PPSP is now focusing on live streaming for the reason to > concentrate the scope. If we find there exist the common foudations in > live streaming and stored streaming after PPSP discusses throughly live > streaming protocols, there is much probabilty that we seek for building > stored streaming protocols. [YRY] I think the focus is on Live. Stored media (VoD) can be quite different from Live, in particular, in terms of algorithms. For example, for stored media, a more capable node can download faster (you can see the slider bar moves way beyond the current play point) and then serve others. For Live, this is impossible. For VoD, you can fast forward; for Live, so far physics says that we cannot :-) > 2) the second question is about the congestion that the delivery of > such stream can cause on the network LEDBAT wg is working on a > congestion mechanism developed on top of UDP, but I don't think that > the less than best effort approach that they are considering would be > good for a live stream. I'd like read you thoughts about it. > Reply: Good question. I share the same idea as you. As stated in last SF > PPSP bar bof, current most P2P streaming uses UDP for simple and > efficenct delivery. However we are worrying about the Internet collapse > for UDP is un-obedient and consumes bandwidth greedly in case video > traffic dominates Internet. So in the research aspect, although we won't > include this mechanism in PPSP which is focusing on signaling part, we > are considering a protocol that combines UDP's bandwidth utilization > with TCP's obedience in one-to-many communcaitons. Highly welcome to > discuss this problem in more detail. [YRY] I am not sure congestion control will be in-scope for PPSP. Either Live or VoD, after you start the play, you have to keep the pace; otherwise, the video freezes. So the issue applies to both Live and VoD (at least for a long VoD session). It sure is an interesting question. Richard > > > best regards > Sal > > www.sloreto.com > > > > > > 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 > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > ppsp mailing list > > ppsp@ietf.org > > https://www.ietf.org/mailman/listinfo/ppsp > > >