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_______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Thu Apr 4 01:34:30 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA27066 for ; Thu, 4 Apr 2002 01:34:26 -0500 (EST) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id BAA07492 for diffserv-interest-archive@odin.ietf.org; Thu, 4 Apr 2002 01:34:27 -0500 (EST) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id BAA05425; Thu, 4 Apr 2002 01:25:09 -0500 (EST) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id BAA05394 for ; Thu, 4 Apr 2002 01:25:07 -0500 (EST) Received: from d12lmsgate-2.de.ibm.com (d12lmsgate-2.de.ibm.com [195.212.91.200]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA26953 for ; Thu, 4 Apr 2002 01:25:04 -0500 (EST) Received: from d12relay02.de.ibm.com (d12relay02.de.ibm.com [9.165.215.23]) by d12lmsgate-2.de.ibm.com (1.0.0) with ESMTP id IAA202648 for ; Thu, 4 Apr 2002 08:24:35 +0200 Received: from collon.zurich.ibm.com (collon.zurich.ibm.com [9.4.16.143]) by d12relay02.de.ibm.com (8.11.1m3/NCO/VER6.00) with SMTP id g346OYV154064 for ; Thu, 4 Apr 2002 08:24:34 +0200 Received: from dhcp22-167.zurich.ibm.com by collon.zurich.ibm.com (AIX 4.3/UCB 5.64/4.03) id AA29006 from ; Thu, 4 Apr 2002 08:24:33 +0200 Message-Id: <3CABF189.59BD8934@hursley.ibm.com> Date: Thu, 04 Apr 2002 08:24:09 +0200 From: Brian E Carpenter Organization: IBM X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en,fr Mime-Version: 1.0 To: diffserv interest Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Transfer-Encoding: 7bit Subject: [Diffserv-interest] Change of list management policy Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 7bit Since spammers seem to have found the diffserv-interest list, I have changed the list policy to allow posting by list members only. Any postings by non-members will be held for approval (by me as list admin). This is only to stop the spam, since this is a general discussion list (as long as the messages have something to do with diffserv). To subscribe, go to https://www1.ietf.org/mailman/listinfo/diffserv-interest or write to diffserv-request@ietf.org In Body: subscribe your_email_address Brian Carpenter P.S. if anybody would like to take over as list admin, tell me! _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Tue Apr 9 00:29:55 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id AAA17642 for ; Tue, 9 Apr 2002 00:29:55 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id AAA07493 for diffserv-interest-archive@odin.ietf.org; Tue, 9 Apr 2002 00:29:56 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id AAA07299; Tue, 9 Apr 2002 00:22:01 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id AAA07274 for ; Tue, 9 Apr 2002 00:22:00 -0400 (EDT) Received: from kc-msxproto2.kc.umkc.edu (kc-msxproto2.kc.umkc.edu [134.193.143.159]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id AAA17357 for ; Tue, 9 Apr 2002 00:21:58 -0400 (EDT) Received: from KC-MAIL2.kc.umkc.edu ([134.193.143.162] RDNS failed) by kc-msxproto2.kc.umkc.edu with Microsoft SMTPSVC(5.0.2195.4453); Mon, 8 Apr 2002 23:21:59 -0500 X-MIMEOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Date: Mon, 8 Apr 2002 23:15:32 -0500 Message-ID: Thread-Topic: streaming/QoS Thread-Index: AcHfVLZqYuP4VGiZQjiwyjhLLMGmngAIWhDQ From: "Ayyasamy, Senthilkumar (UMKC-Student)" To: "Fred Baker" Cc: X-OriginalArrivalTime: 09 Apr 2002 04:21:59.0690 (UTC) FILETIME=[178A56A0:01C1DF7E] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by optimus.ietf.org id AAA07275 Subject: [Diffserv-interest] RE: streaming/QoS Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 8bit >>1.Of all the existing applications,video and audio streaming demands more >>QoS mechanisms. >>Is their is any study relating these streaming applications with diffserv. >well google seems to have some pointers to various papers. Is that what >you're asking? well google did point me to this literature . http://pender.ee.upenn.edu/~guerin/publications/sigcomm_camera_174_final.pdf Here,Dr.Guerin studies the mapping by passing video streams through policers from which application level performance is evaluated.But,this study is basically focused on how policing actions by EF is translated into application level performance. But,I think a combination of AF and EF as pointed out in section 2.4 in http://www.ietf.org/internet-drafts/draft-baker-ieprep-requirements-00.txt will work fine. But,examining the drop precedence within those seven classes of traffic will be more useful.Do you accept my contention? >>2.This question is more or less related to the first.Please refer to some >>research work which discusses relation between Audio& video qulaity and >>network >>performance.Some thoughts about this topic is also appreciated. > >I didn't see a question mark. What was the question? Is there are any existing study discussing the relation between audio&video quality with network performance ?..This was my question. Google failed to help me at this point :-) >>3.Is expedited forwarding only way to give guaranteed treatment to >>audio/video >>streaming applications >no, it's just the only one that works :^) >A little more seriously, there are basically three queuing policies that >diffserv generally applies to a class. It can give it priority, which it >publicly only does using EF. It can give it a rate or a percentage of the >line, and use the rate of the queue, augmented in the worst case active >marking or dropping, to slow down traffic when the aggregate exceeds the >available bandwidth. It can do the second and additionally use specialized >marking to ensure that the subset of the aggregate most affected is the >part that is over-using some contract. This third, of course, is AF. If my understading is not wrong,this correctly reflects your idea of seven classes as in http://www.ietf.org/internet-drafts/draft-baker-ieprep-requirements-00.txt >>4.E-model of ITU-T estimates MOS by mapping voice quality with impairments >>like delay, signaling and user expection.Can we related these impairments >>with diffserv drop precedence for mapping streaming application with QoS. This reference will be more apt to my question. http://www.acm.org/sigcomm/ccr/archive/2001/apr01/ccr-200104-cole.pdf This work basically describes a method for monitoring the quality of internet paths to support voice.I asked this question thinking in the same line as the above pointed work. >Could you forward a pointer to that which doesn't require membership in a >closed user group to review it? You mentioned that to be a closed group..Thats why i am senting questions to a open forums like IETF to get help :-). Thanks in advance , -senthil _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Tue Apr 9 02:57:32 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA27864 for ; Tue, 9 Apr 2002 02:57:32 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id CAA24568 for diffserv-interest-archive@odin.ietf.org; Tue, 9 Apr 2002 02:57:34 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id CAA24053; Tue, 9 Apr 2002 02:48:51 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id TAA21568 for ; Mon, 8 Apr 2002 19:25:45 -0400 (EDT) Received: from sj-msg-core-1.cisco.com (sj-msg-core-1.cisco.com [171.71.163.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA09608 for ; Mon, 8 Apr 2002 19:25:43 -0400 (EDT) Received: from FRED-W2K6.cisco.com ([10.25.10.242]) by sj-msg-core-1.cisco.com (8.12.2/8.12.2) with ESMTP id g38NPEq7002801; Mon, 8 Apr 2002 16:25:14 -0700 (PDT) Message-Id: <5.1.0.14.2.20020408161121.01d99210@mira-sjcm-4.cisco.com> X-Sender: fred@mira-sjcm-4.cisco.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 08 Apr 2002 16:25:05 -0700 To: "Ayyasamy, Senthilkumar (UMKC-Student)" From: Fred Baker Cc: diffserv-interest@ietf.org In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Subject: [Diffserv-interest] Re: streaming/QoS Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org At 03:26 PM 4/8/2002, Ayyasamy, Senthilkumar (UMKC-Student) wrote: >1.Of all the existing applications,video and audio streaming demands more >QoS mechanisms. >Is their is any study relating these streaming applications with diffserv. well google seems to have some pointers to various papers. Is that what you're asking? I'm not certain, BTW, that these are the principal applications. VoIP has certainly driven a certain class of interest. But my observation since ~1984 has been that one cannot sell a routing or switching product in an enterprise environment if it lacks features that enable the manager to apply policies to his traffic. The policy may be that a certain application needs sub-second response time and should get priority or a certain bandwidth, or needs to be limited to some bandwidth on some manner. But QoS technology is the technology that allows him to select a subset of his traffic and make something be true of it. >2.This question is more or less related to the first.Please refer to some >research work which discusses relation between Audio& video qulaity and >network >performance.Some thoughts about this topic is also appreciated. I didn't see a question mark. What was the question? >3.Is expedited forwarding only way to give guaranteed treatment to >audio/video >streaming applications no, it's just the only one that works :^) A little more seriously, there are basically three queuing policies that diffserv generally applies to a class. It can give it priority, which it publicly only does using EF. It can give it a rate or a percentage of the line, and use the rate of the queue, augmented in the worst case active marking or dropping, to slow down traffic when the aggregate exceeds the available bandwidth. It can do the second and additionally use specialized marking to ensure that the subset of the aggregate most affected is the part that is over-using some contract. This third, of course, is AF. I generally think that EF is a good thing for interactive VoIP. If the queue for a set of video streams is provisioned for the sum of their peak rates, AF4 is probably a good choice for RTP video; this does imply knowing what microflows are going through the class, and what their peak rates are, which in my mind implies some form of signalling. I honestly don't see the difference between Real Networks or Microsoft Media Player and a file transfer, other than that they might start doing something with the file before they have received the whole thing. >4.E-model of ITU-T estimates MOS by mapping voice quality with impairments >like delay, signaling and user expection.Can we related these impairments >with diffserv drop precedence for mapping streaming application with QoS. Could you forward a pointer to that which doesn't require membership in a closed user group to review it? _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Tue Apr 9 02:57:38 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA27865 for ; Tue, 9 Apr 2002 02:57:32 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id CAA24570 for diffserv-interest-archive@odin.ietf.org; Tue, 9 Apr 2002 02:57:34 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id CAA24027; Tue, 9 Apr 2002 02:48:49 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id TAA21162 for ; Mon, 8 Apr 2002 19:12:01 -0400 (EDT) Received: from sj-msg-core-1.cisco.com (sj-msg-core-1.cisco.com [171.71.163.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA09468 for ; Mon, 8 Apr 2002 19:11:59 -0400 (EDT) Received: from FRED-W2K6.cisco.com ([10.25.10.242]) by sj-msg-core-1.cisco.com (8.12.2/8.12.2) with ESMTP id g38NBRq7025651 for ; Mon, 8 Apr 2002 16:11:27 -0700 (PDT) Message-Id: <5.1.0.14.2.20020408161027.01df6a90@mira-sjcm-4.cisco.com> X-Sender: fred@mira-sjcm-4.cisco.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 08 Apr 2002 16:11:18 -0700 To: diffserv-interest@ietf.org From: Fred Baker In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Subject: [Diffserv-interest] Re: streaming/QoS Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org At 03:26 PM 4/8/2002, Ayyasamy, Senthilkumar (UMKC-Student) wrote: >Hi all, > I have some queries relating to mapping audio& video applications and > QoS . >1.Of all the existing applications,video and audio streaming demands more >QoS mechanisms. >Is their is any study relating these streaming applications with diffserv. > >2.This question is more or less related to the first.Please refer to some >research work which discusses relation between Audio& video qulaity and >network >performance.Some thoughts about this topic is also appreciated. > >3.Is expedited forwarding only way to give guaranteed treatment to >audio/video >streaming applications > >4.E-model of ITU-T estimates MOS by mapping voice quality with impairments >like delay, >signaling and user expection.Can we related these impairments with >diffserv drop precedence >for mapping streaming application with QoS. > >Thanks in advance , >Senthil _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Tue Apr 9 03:35:30 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id DAA28463 for ; Tue, 9 Apr 2002 03:35:30 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id DAA27449 for diffserv-interest-archive@odin.ietf.org; Tue, 9 Apr 2002 03:35:32 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id DAA26489; Tue, 9 Apr 2002 03:25:18 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id DAA26460 for ; Tue, 9 Apr 2002 03:25:16 -0400 (EDT) Received: from relay1.alcatel.be (alc119.alcatel.be [195.207.101.119]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id DAA28269 for ; Tue, 9 Apr 2002 03:25:12 -0400 (EDT) Received: from Bemail06.net.alcatel.be (localhost [127.0.0.1]) by relay1.alcatel.be (8.10.1/8.10.1) with ESMTP id g397OUE12121; Tue, 9 Apr 2002 09:24:30 +0200 (MET DST) Received: from alcatel.be ([138.203.67.4]) by Bemail06.net.alcatel.be (Lotus Domino Release 5.0.8) with ESMTP id 2002040909242954:276 ; Tue, 9 Apr 2002 09:24:29 +0200 Message-ID: <3CB2972C.415BC73F@alcatel.be> Date: Tue, 09 Apr 2002 09:24:28 +0200 From: danny.de_vleeschauwer@alcatel.be X-Mailer: Mozilla 4.72 [en] (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: "Ayyasamy, Senthilkumar (UMKC-Student)" CC: diffserv-interest@ietf.org Subject: Re: [Diffserv-interest] RE: streaming/QoS References: X-MIMETrack: Itemize by SMTP Server on BEMAIL06/BE/ALCATEL(Release 5.0.8 |June 18, 2001) at 04/09/2002 09:24:29, Serialize by Router on BEMAIL06/BE/ALCATEL(Release 5.0.8 |June 18, 2001) at 04/09/2002 09:24:30 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by optimus.ietf.org id DAA26461 Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 8bit Hi Senthil, "Ayyasamy, Senthilkumar (UMKC-Student)" wrote: > >>2.This question is more or less related to the first.Please refer to some > >>research work which discusses relation between Audio& video qulaity and > >>network > >>performance.Some thoughts about this topic is also appreciated. > > > >I didn't see a question mark. What was the question? > > Is there are any existing study discussing the relation between audio&video > quality with network performance ?..This was my question. > Google failed to help me at this point :-) We have a paper that relates voice quality to the network performance: J. Janssen, M.J.C Büchli, D. De Vleeschauwer and G.H. Petit, "The Impact of Transmission Parameters on the Quality of Packet-based Telephony", Accepted for the special issue of IEEE Internet Computing on Internet Telephony, scheduled for May/June 2002. This paper is based on the E-model. We also have another one that is more or less related to your question. It also deals with Voice only (no audio, no video) M.J.C. Büchli, D. De Vleeschauwer, J. Janssen, A. Van Moffaert, G.H. Petit, "Resource Allocation and Management in DiffServ Networks for IP Telephony", Proceedings of the 11th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV01), pp. 33-39, Port Jefferson (NY), 25-26 June 2001. We are currently extending this study for video/audio. Kind regards, Danny -- ____________________ Danny De Vleeschauwer \ / _______________________________________________\ /____ \ / Research Engineer \ ALCATEL / DD1 Network Strategy Group Tel : +32 (0)3 240 81 96 Francis Wellesplein 1 GSM : +32 (0)497 39 75 48 B-2018 Antwerpen Belgium Fax : +32 (0)3 240 48 88 \ / ______________________________________________________\ /___________ mailto:Danny.De_Vleeschauwer@alcatel.be \/ _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Tue Apr 9 07:29:57 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA02104 for ; Tue, 9 Apr 2002 07:29:57 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id HAA11325 for diffserv-interest-archive@odin.ietf.org; Tue, 9 Apr 2002 07:29:59 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id HAA10517; Tue, 9 Apr 2002 07:17:53 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id HAA10492 for ; Tue, 9 Apr 2002 07:17:51 -0400 (EDT) Received: from condor.uom.ac.mu ([202.60.7.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA01964 for ; Tue, 9 Apr 2002 07:17:42 -0400 (EDT) Received: from uom.ac.mu ([172.22.24.61]) by condor.uom.ac.mu (Post.Office MTA v3.5.3 release 223 ID# 0-60726U1000L100S0V35) with SMTP id mu for ; Tue, 9 Apr 2002 15:16:15 +0400 Message-ID: <3CB2D66B.A876A3BC@uom.ac.mu> Date: Tue, 09 Apr 2002 15:54:19 +0400 From: sgoorah@uom.ac.mu (Goorah Shravan) Organization: University of Mauritius X-Mailer: Mozilla 4.72 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: diffserv-interest@ietf.org Content-Type: multipart/mixed; boundary="------------7DFB12786D5BA9E94871A8C2" Subject: [Diffserv-interest] QoS requirements of Applications Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org This is a multi-part message in MIME format. --------------7DFB12786D5BA9E94871A8C2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello there, Can you help me in the process of compiling QoS requirements in terms of Diffserv parameters (PHB = EF/AF/BE and Profile in bps) for applications (unicast and multicast) ? Shravan -- Shravan Goorah Lecturer, Department of Computer Science, Faculty of Engineering, University of Mauritius Tel. 454 1041 Fax. 465 71 44 --------------7DFB12786D5BA9E94871A8C2 Content-Type: message/rfc822 Content-Disposition: inline Return-Path: Received: from optimus.ietf.org ([132.151.1.19]) by condor.uom.ac.mu (Post.Office MTA v3.5.3 release 223 ID# 0-60726U1000L100S0V35) with SMTP id mu for ; Mon, 8 Apr 2002 15:35:58 +0400 Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id GAA25334; Mon, 8 Apr 2002 06:37:26 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id GAA25302 for ; Mon, 8 Apr 2002 06:37:21 -0400 (EDT) Received: from condor.uom.ac.mu ([202.60.7.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA19643 for ; Mon, 8 Apr 2002 06:37:14 -0400 (EDT) Received: from uom.ac.mu ([172.22.24.61]) by condor.uom.ac.mu (Post.Office MTA v3.5.3 release 223 ID# 0-60726U1000L100S0V35) with SMTP id mu for ; Mon, 8 Apr 2002 14:35:53 +0400 Message-ID: <3CB17B78.5B51FB4D@uom.ac.mu> Date: Mon, 08 Apr 2002 15:14:00 +0400 From: sgoorah@uom.ac.mu (Goorah Shravan) Organization: University of Mauritius X-Mailer: Mozilla 4.72 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: diffserv@ietf.org Content-Type: text/plain; charset=us-ascii Subject: [Diffserv] QoS requirements of Applications Sender: diffserv-admin@ietf.org Errors-To: diffserv-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Diffserv Discussion List X-BeenThere: diffserv@ietf.org X-Mozilla-Status2: 00000000 Content-Transfer-Encoding: 7bit Hello there, I am looking for a compilation of QoS requirements in terms of Diffserv parameters (PHB = EF/AF/BE and Profile in bps) for applications (unicast and multicast). Please reply to my e-mail address as well because I am not so sure whether my "set nomail off" has been successful. Shravan -- Shravan Goorah Lecturer, Department of Computer Science, Faculty of Engineering, University of Mauritius Tel. 454 1041 Fax. 465 71 44 _______________________________________________ diffserv mailing list diffserv@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv Archive: http://www.ietf.org/mail-archive/working-groups/diffserv/current/maillist.html --------------7DFB12786D5BA9E94871A8C2-- _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Wed Apr 10 05:40:51 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA14447 for ; Wed, 10 Apr 2002 05:40:51 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id FAA09674 for diffserv-interest-archive@odin.ietf.org; Wed, 10 Apr 2002 05:40:55 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id FAA09223; Wed, 10 Apr 2002 05:31:04 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id FAA09188 for ; Wed, 10 Apr 2002 05:31:01 -0400 (EDT) Received: from d12lmsgate.de.ibm.com (d12lmsgate.de.ibm.com [195.212.91.199]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA14344 for ; Wed, 10 Apr 2002 05:30:55 -0400 (EDT) Received: from d12relay01.de.ibm.com (d12relay01.de.ibm.com [9.165.215.22]) by d12lmsgate.de.ibm.com (1.0.0) with ESMTP id LAA106126; Wed, 10 Apr 2002 11:29:26 +0200 Received: from collon.zurich.ibm.com (collon.zurich.ibm.com [9.4.16.143]) by d12relay01.de.ibm.com (8.11.1m3/NCO/VER6.00) with SMTP id g3A9S1K109094; Wed, 10 Apr 2002 11:28:02 +0200 Received: from dhcp22-167.zurich.ibm.com by collon.zurich.ibm.com (AIX 4.3/UCB 5.64/4.03) id AA43546 from ; Wed, 10 Apr 2002 11:27:57 +0200 Message-Id: <3CB40583.47F7FCD@hursley.ibm.com> Date: Wed, 10 Apr 2002 11:27:31 +0200 From: Brian E Carpenter Organization: IBM X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en,fr Mime-Version: 1.0 To: Lloyd Wood Cc: Phung Minh Hoang , diffserv interest References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Transfer-Encoding: 7bit Subject: [Diffserv-interest] Re: [Diffserv] DiffServ traffic characteristics Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 7bit There is an interesting question whether the smoothing effect in the core will be helped or hindered by the separation of traffic into several diffserv aggregates, presumably each containing traffic with somewhat similar statistics. Brian (switched to diffserv-interest) Lloyd Wood wrote: > > On Tue, 9 Apr 2002, Phung Minh Hoang wrote: > > > Traffic in the current Internet has been found to be self-similar and > > multifractal. > > I think you'll find that that's traffic at the edges, where hosts on > LANs fight it out and academics have their kit and do their > measurements. > > In the core, all these slower streams are aggregated, smoothing out > individual peaks, and everything's running much nearer capacity. > Lucent rediscovered this with some fanfare last year: > > http://www.lucent.com/press/0601/010606.bla.html > http://cm.bell-labs.com/cm/ms/departments/sia/InternetTraffic/index.html > http://cm.bell-labs.com/cm/ms/departments/sia/InternetTraffic/webpapers.html > Jin Cao, William S. Cleveland, Dong Lin, and Don X. Sun > > This is really a discussion for end2end. > > L. > > > Will that change if > > > > (1) Internet traffic changes from being dominated by TCP, Web traffic to > > being dominated by real time multimedia traffic > > > > (2) traffic conditioning mechanisms in DiffServ are introduced > > > > Can anyone point me to any work done so far to address that? > > PGP > > _______________________________________________ > diffserv mailing list > diffserv@ietf.org > https://www1.ietf.org/mailman/listinfo/diffserv > Archive: http://www.ietf.org/mail-archive/working-groups/diffserv/current/maillist.html -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Brian E Carpenter Distinguished Engineer, Internet Standards & Technology, IBM On assignment at the IBM Zurich Laboratory, Switzerland Board Chairman, Internet Society http://www.isoc.org INET 2002, Washington, DC, 18-21 June http://www.inet2002.org _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Wed Apr 10 07:32:58 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA15416 for ; Wed, 10 Apr 2002 07:32:57 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id HAA14869 for diffserv-interest-archive@odin.ietf.org; Wed, 10 Apr 2002 07:33:01 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id HAA14226; Wed, 10 Apr 2002 07:26:55 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id HAA14197 for ; Wed, 10 Apr 2002 07:26:53 -0400 (EDT) Received: from sj-msg-core-1.cisco.com (sj-msg-core-1.cisco.com [171.71.163.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA15365 for ; Wed, 10 Apr 2002 07:26:49 -0400 (EDT) Received: from FRED-W2K6.cisco.com ([10.25.10.242]) by sj-msg-core-1.cisco.com (8.12.2/8.12.2) with ESMTP id g3ABPkq7015664; Wed, 10 Apr 2002 04:25:47 -0700 (PDT) Message-Id: <5.1.0.14.2.20020410042126.04ed7a50@mira-sjcm-4.cisco.com> X-Sender: fred@mira-sjcm-4.cisco.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 10 Apr 2002 04:25:39 -0700 To: Brian E Carpenter From: Fred Baker Subject: Re: [Diffserv-interest] Re: [Diffserv] DiffServ traffic characteristics Cc: Lloyd Wood , Phung Minh Hoang , diffserv interest In-Reply-To: <3CB40583.47F7FCD@hursley.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org > > In the core, all these slower streams are aggregated, smoothing out > > individual peaks, and everything's running much nearer capacity. > > Lucent rediscovered this with some fanfare last year: they are, when the interfaces between the edge and the core smooth them, or when they are so small (much web and email) that their behavior is essentially a packet for packet exchange between peers, (video) their traffic is essentially a not-very-variable rate fixed data stream, or (voip) a bimodal data stream that is fixed rate when on and otherwise is off. I would conjecture that where you get sloping behaviors is with essentially random traffic (NFS) or sum-of-sawtooth TCP file transfers. _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@ns.ietf.org Tue Apr 16 02:07:16 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA20850 for ; Tue, 16 Apr 2002 02:07:15 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id CAA20686 for diffserv-interest-archive@odin.ietf.org; Tue, 16 Apr 2002 02:07:18 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id CAA20411; Tue, 16 Apr 2002 02:02:27 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id CAA20380 for ; Tue, 16 Apr 2002 02:02:25 -0400 (EDT) Received: from smtp.postech.ac.kr (smtp1.postech.ac.kr [141.223.2.188]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA17773 for ; Tue, 16 Apr 2002 02:02:21 -0400 (EDT) Received: from comus (comus.postech.ac.kr [141.223.92.55]) by smtp.postech.ac.kr (v3smtp 8.11.6.4/8.11.1) with SMTP id g3G62Ln07801 for ; Tue, 16 Apr 2002 15:02:21 +0900 (KST) From: "Geunhyung Kim" To: Date: Tue, 16 Apr 2002 14:55:59 +0900 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="ks_c_5601-1987" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Importance: Normal Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by optimus.ietf.org id CAA20381 Subject: [Diffserv-interest] Congestion Condtion in DiffServ Environment Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 8bit Hello All ! Could you tell me the congestion condition in DiffServ environment ? What kinds of mechanism will we consider for escape the congestion situation ? Thanks in advance Geunhyung Kim None of us is as smart as all of us ========================================== Geunhyung Kim E-mail: geunkim@postech.edu Tel: +82-54-279-5655 Fax: +82-54-279-5699 Networking & Distributed Systems Lab. CSE POSTECH =========================================== _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@ns.ietf.org Tue Apr 23 10:48:26 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA20425 for ; Tue, 23 Apr 2002 10:48:25 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id KAA05224 for diffserv-interest-archive@odin.ietf.org; Tue, 23 Apr 2002 10:48:29 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id KAA05016; Tue, 23 Apr 2002 10:46:54 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id LAA22412 for ; Mon, 22 Apr 2002 11:34:17 -0400 (EDT) Received: from tssg.wit.ie (tssg.wit.ie [193.1.185.11]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA29173 for ; Mon, 22 Apr 2002 11:34:08 -0400 (EDT) Received: from aquex ([10.37.1.90]) by tssg.wit.ie (8.11.6/8.11.6/SuSE Linux 0.5) with SMTP id g3MFY7U01649 for ; Mon, 22 Apr 2002 16:34:07 +0100 Reply-To: From: "Chamil PW Kulatunga" To: Date: Mon, 22 Apr 2002 16:36:34 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Content-Transfer-Encoding: 7bit Subject: [Diffserv-interest] Trouble with dsmark Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 7bit ello Diffserv Interest group, I am having a trouble with dsmark. Others qdiscs cbq, sfq, tbf, red are working with Linux kernel 2.4.18 but dsmark, gred not. I have set all not as Modules. I think I am doing a mistake. Can anyone help if you can understand it. Thanking you. Chamil _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Wed Apr 24 04:04:51 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA26991 for ; Wed, 24 Apr 2002 04:04:50 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id EAA11663 for diffserv-interest-archive@odin.ietf.org; Wed, 24 Apr 2002 04:04:53 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id EAA11603; Wed, 24 Apr 2002 04:03:51 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id DAA10014 for ; Wed, 24 Apr 2002 03:41:24 -0400 (EDT) Received: from augean.eleceng.adelaide.edu.au (augean.eleceng.adelaide.edu.au [129.127.28.4]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id DAA26599; Wed, 24 Apr 2002 03:41:19 -0400 (EDT) Received: from eleceng.adelaide.edu.au (citr2.eleceng.adelaide.edu.au [129.127.29.38]) by augean.eleceng.adelaide.edu.au (8.10.1/8.10.1/ElecEng-1.0) with ESMTP id g3O7eU103479; Wed, 24 Apr 2002 17:10:30 +0930 (CST) Message-ID: <3CC66170.E1A50CA4@eleceng.adelaide.edu.au> Date: Wed, 24 Apr 2002 17:10:32 +0930 From: Amoakoh Gyasi-Agyei Organization: Centre for Internet Technology Research (CITR) X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: mip-qos@research.nokia.com, diffserv-interest@ietf.org, issll@mercury.lcs.mit.edu, nsis@ietf.org, seamoby@ietf.org, mflannag@cisco.com, kanodia@rice.edu, FrancisDomoney@aol.com, diffserv@ietf.org, Amoakoh , brian@hursley.ibm.com Content-Type: multipart/mixed; boundary="------------D774405C1F1EC9EDE76F370D" Subject: [Diffserv-interest] Wireless Diffserv Majordomo Discussion List? Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org This is a multi-part message in MIME format. --------------D774405C1F1EC9EDE76F370D Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Dear Comrades, Some of us have already expressed a keen interest in creating an active Wireless Diffserv Majordomo Discussion List that will concentrate on technical issues pertaining to Diffserv over wireless links (such as modeling & performance analysis, implementation, etc.) which is otherwise compatible to Diffserv standards. Are the contents well addressed in any already existing list? Any more suggestions regarding scope, how the list should be organised, etc. Brian & other fellows: thanks for your support. P.S. Sorry if this email disturbs you in any way. Thanks. Thanks for your support & feedback, Amoakoh _______________________________________________________ Amoakoh Gyasi-Agyei Centre for Internet Technology Research (CITR) Electrical & Electronic Engineering Department Adelaide University Level 5, 10 Pulteney St., Adelaide 5000 Tel: +61 8 8303 6902 (office) Tel: +61 402 638 141 (mbl) Tel: +61 8 8271 4534 (home) Fax: +61 8 8303 4405 (office) http://aaron.eleceng.adelaide.edu.au/Personal/amoakoh/ --------------D774405C1F1EC9EDE76F370D Content-Type: text/x-vcard; charset=us-ascii; name="amoakoh.vcf" Content-Description: Card for Amoakoh Gyasi-Agyei Content-Disposition: attachment; filename="amoakoh.vcf" Content-Transfer-Encoding: 7bit begin:vcard n:Gyasi-Agyei;Amoakoh tel;cell:+61 402 638 141 tel;fax:+61 8 8303 4405 tel;work:+61 8 8303 6209 x-mozilla-html:FALSE adr:;;;;;; version:2.1 email;internet:Amoakoh@eleceng.adelaide.edu.au fn:Amoakoh end:vcard --------------D774405C1F1EC9EDE76F370D-- _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@ns.ietf.org Wed Apr 24 20:59:17 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id UAA12671 for ; Wed, 24 Apr 2002 20:59:17 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id UAA13085 for diffserv-interest-archive@odin.ietf.org; Wed, 24 Apr 2002 20:59:20 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id UAA12999; Wed, 24 Apr 2002 20:57:16 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id UAA12963 for ; Wed, 24 Apr 2002 20:57:14 -0400 (EDT) Received: from i2soft_web ([211.240.20.130]) by ietf.org (8.9.1a/8.9.1a) with SMTP id UAA12625 for ; Wed, 24 Apr 2002 20:57:08 -0400 (EDT) Received: by i2soft_web with MERCUR-SMTP/POP3/IMAP4-Server (v3.00.25 RI-0000000) for at Thu, 25 Apr 2002 09:54:14 +0900 Message-ID: <012501c1ebf3$2c4dc8c0$38a5fe81@jeremiah> From: "Yong-Seung Bae" To: Date: Thu, 25 Apr 2002 09:50:19 +0900 MIME-Version: 1.0 Content-Type: text/plain; charset="ks_c_5601-1987" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-Transfer-Encoding: 7bit Subject: [Diffserv-interest] About implementation & usage of flow label(IPv6) in Diffserv network Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 7bit Hi, diffserver! I would like to know about implementation & usage of flow label(IPv6) in Diffserv network. Could you please provide me with some information about that? Thanks Jeremiah Bae _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest From daemon@optimus.ietf.org Thu Apr 25 05:33:36 2002 Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA29954 for ; Thu, 25 Apr 2002 05:33:36 -0400 (EDT) Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id FAA21020 for diffserv-interest-archive@odin.ietf.org; Thu, 25 Apr 2002 05:33:39 -0400 (EDT) Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id FAA20309; Thu, 25 Apr 2002 05:26:43 -0400 (EDT) Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id FAA20277 for ; Thu, 25 Apr 2002 05:26:40 -0400 (EDT) Received: from mail-gw1.hursley.ibm.com (mail-gw1.hursley.ibm.com [194.196.110.15]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA29899 for ; Thu, 25 Apr 2002 05:26:35 -0400 (EDT) Received: from sp15en17.hursley.ibm.com (sp15at17.hursley.ibm.com [9.20.45.103]) by mail-gw1.hursley.ibm.com (AIX4.3/8.9.3/8.9.3) with ESMTP id KAA30438; Thu, 25 Apr 2002 10:26:00 +0100 Received: from hursley.ibm.com (dhcp22-167.zurich.ibm.com [9.4.22.167]) by sp15en17.hursley.ibm.com (AIX4.3/8.9.3/8.9.3) with ESMTP id KAA34672; Thu, 25 Apr 2002 10:26:00 +0100 Message-ID: <3CC7CB86.ACB8DE12@hursley.ibm.com> Date: Thu, 25 Apr 2002 11:25:26 +0200 From: Brian E Carpenter Organization: IBM X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en,fr,de MIME-Version: 1.0 To: Yong-Seung Bae CC: diffserv-interest@ietf.org Subject: Re: [Diffserv-interest] About implementation & usage of flow label(IPv6) in Diffserv network References: <012501c1ebf3$2c4dc8c0$38a5fe81@jeremiah> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Transfer-Encoding: 7bit Sender: diffserv-interest-admin@ietf.org Errors-To: diffserv-interest-admin@ietf.org X-Mailman-Version: 1.0 Precedence: bulk List-Id: Differentiated services general discussion X-BeenThere: diffserv-interest@ietf.org Content-Transfer-Encoding: 7bit This is not really defined yet. There are some expired drafts with incomplete ideas, and there is a current draft in the IPv6 WG that aims to clarify the basic definition of the flow label. Although I'm an author of that draft, I still have some problems with it myself. However, it's at http://www.ietf.org/internet-drafts/draft-ietf-ipv6-flow-label-01.txt There is also an individual submission http://www.ietf.org/internet-drafts/draft-banerjee-flowlabel-ipv6-qos-03.txt but this has no official status. At the moment the flow label is of no use for diffserv. If we do clarify the formal definition, it could possibly be used as a field in an MF classifier. Regards Brian Carpenter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Brian E Carpenter Distinguished Engineer, Internet Standards & Technology, IBM On assignment at the IBM Zurich Laboratory, Switzerland Board Chairman, Internet Society http://www.isoc.org INET 2002, Washington, DC, 18-21 June http://www.inet2002.org Yong-Seung Bae wrote: > > Hi, diffserver! > > I would like to know about implementation & usage of flow label(IPv6) in > Diffserv network. > Could you please provide me with some information about that? > > Thanks > Jeremiah Bae _______________________________________________ Diffserv-interest mailing list Diffserv-interest@ietf.org https://www1.ietf.org/mailman/listinfo/diffserv-interest