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Passwords for ssm-archive@lists.ietf.org: List Password // URL ---- -------- ssm@ietf.org mifemu https://www1.ietf.org/mailman/options/ssm/ssm-archive%40lists.ietf.org From ssm-bounces@ietf.org Wed Nov 17 08:43:17 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA29260 for ; Wed, 17 Nov 2004 08:43:17 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUQ0Z-0001kp-E1; Wed, 17 Nov 2004 08:38:03 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUPtZ-0000cD-O9 for ssm@megatron.ietf.org; Wed, 17 Nov 2004 08:30:49 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA28353 for ; Wed, 17 Nov 2004 08:30:47 -0500 (EST) Received: from imap.gmx.net ([213.165.64.20] helo=mail.gmx.net) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1CUPvy-000149-Bj for ssm@ietf.org; Wed, 17 Nov 2004 08:33:19 -0500 Received: (qmail 916 invoked by uid 0); 17 Nov 2004 13:30:16 -0000 Received: from 192.35.17.10 by www62.gmx.net with HTTP; Wed, 17 Nov 2004 14:30:16 +0100 (MET) Date: Wed, 17 Nov 2004 14:30:16 +0100 (MET) From: "Marc Barisch" To: ssm@ietf.org MIME-Version: 1.0 X-Priority: 3 (Normal) X-Authenticated: #431471 Message-ID: <22794.1100698216@www62.gmx.net> X-Mailer: WWW-Mail 1.6 (Global Message Exchange) X-Flags: 0001 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Scan-Signature: d6b246023072368de71562c0ab503126 Content-Transfer-Encoding: 7bit Subject: [ssm] Who uses SSM? X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: 7bit Hi I have read about the advantages of PIM-SSM over PIM-SM from a technical point of view. For a seminar paper at my university, I would like to provide some figures concerning the deployment of the different PIM modes, especially regarding TV broadcast over packet networks. Does anybody know of providers using PIM-SSM or are using all PIM-SM? Are there any commercial deployments regarding PIM-SSM and IPv6. Thanks in advance Marc -- Geschenkt: 3 Monate GMX ProMail + 3 Top-Spielfilme auf DVD ++ Jetzt kostenlos testen http://www.gmx.net/de/go/mail ++ _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 09:34:54 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA03107 for ; Wed, 17 Nov 2004 09:34:54 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUQo7-0002rX-6a; Wed, 17 Nov 2004 09:29:15 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUQn3-0002bw-2V for ssm@megatron.ietf.org; Wed, 17 Nov 2004 09:28:09 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA02647 for ; Wed, 17 Nov 2004 09:28:07 -0500 (EST) Received: from rproxy.gmail.com ([64.233.170.203]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUQpS-0002CO-O7 for ssm@ietf.org; Wed, 17 Nov 2004 09:30:39 -0500 Received: by rproxy.gmail.com with SMTP id a36so886916rnf for ; Wed, 17 Nov 2004 06:28:06 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=BWayfUgur1WKR8j7TFZefNuch7UNB+hclbsl3Mo+Z3OYChBw2lzBgDOE/CRreaF61ZiEOZ5XEuufSgqzdRoRC81Mmv+9fY0COLYgL3UXk+2EaL/LYCQ2X+YlIcVvk5PTdqWzc3vuUzj74wiM9VSPkpPbWhyYTj88jSqBb+vBFjg= Received: by 10.38.82.27 with SMTP id f27mr461815rnb; Wed, 17 Nov 2004 06:28:06 -0800 (PST) Received: by 10.38.66.53 with HTTP; Wed, 17 Nov 2004 06:28:06 -0800 (PST) Message-ID: Date: Wed, 17 Nov 2004 09:28:06 -0500 From: Marshall Eubanks To: Marc Barisch Subject: Re: [ssm] Who uses SSM? In-Reply-To: <22794.1100698216@www62.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <22794.1100698216@www62.gmx.net> X-Spam-Score: 0.0 (/) X-Scan-Signature: a7d6aff76b15f3f56fcb94490e1052e4 Content-Transfer-Encoding: 7bit Cc: ssm@ietf.org X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Marshall Eubanks List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: 7bit As far as I know, the users of SSM are a set of measure zero. However, from time to time there are tests. Compare http://netflow.internet2.edu/weekly/longit/ssm-octets.png with http://netflow.internet2.edu/weekly/longit/multicast-octets.png Pay attention to the scales on the Y axes. I would love to hear of assertions that disprove the above. Regards Marshall Eubanks On Wed, 17 Nov 2004 14:30:16 +0100 (MET), Marc Barisch wrote: > Hi > > I have read about the advantages of PIM-SSM over PIM-SM from a technical > point of view. > For a seminar paper at my university, I would like to provide some figures > concerning the deployment of the different PIM modes, especially regarding > TV broadcast over packet networks. > > Does anybody know of providers using PIM-SSM or are using all PIM-SM? > Are there any commercial deployments regarding PIM-SSM and IPv6. > > Thanks in advance > > Marc > > -- > Geschenkt: 3 Monate GMX ProMail + 3 Top-Spielfilme auf DVD > ++ Jetzt kostenlos testen http://www.gmx.net/de/go/mail ++ > > _______________________________________________ > ssm mailing list > ssm@ietf.org > https://www1.ietf.org/mailman/listinfo/ssm > _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 09:51:28 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA04383 for ; Wed, 17 Nov 2004 09:51:28 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUR6o-0006qM-HG; Wed, 17 Nov 2004 09:48:34 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUR5p-0006Tj-A5 for ssm@megatron.ietf.org; Wed, 17 Nov 2004 09:47:33 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA04035 for ; Wed, 17 Nov 2004 09:47:31 -0500 (EST) Received: from raven.ecs.soton.ac.uk ([152.78.70.1]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUR8E-0002a9-T6 for ssm@ietf.org; Wed, 17 Nov 2004 09:50:04 -0500 Received: from magpie.ecs.soton.ac.uk (magpie.ecs.soton.ac.uk [152.78.68.131]) by raven.ecs.soton.ac.uk (8.12.10/8.12.10) with ESMTP id iAHElKGn017337; Wed, 17 Nov 2004 14:47:20 GMT Received: from login.ecs.soton.ac.uk (IDENT:root@login [152.78.68.162]) by magpie.ecs.soton.ac.uk (8.9.3/8.9.3) with ESMTP id OAA09810; Wed, 17 Nov 2004 14:47:16 GMT Received: (from tjc@localhost) by login.ecs.soton.ac.uk (8.11.6/8.11.6) id iAHElFr27049; Wed, 17 Nov 2004 14:47:15 GMT Date: Wed, 17 Nov 2004 14:47:15 +0000 From: Tim Chown To: Marshall Eubanks Subject: Re: [ssm] Who uses SSM? Message-ID: <20041117144715.GO25721@login.ecs.soton.ac.uk> References: <22794.1100698216@www62.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i X-MailScanner-Information: Please contact helpdesk@ecs.soton.ac.uk for more information X-ECS-MailScanner: Found to be clean X-MailScanner-From: tjc@smtp.ecs.soton.ac.uk X-Spam-Score: 0.0 (/) X-Scan-Signature: 7d33c50f3756db14428398e2bdedd581 Cc: ssm@ietf.org X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org On Wed, Nov 17, 2004 at 09:28:06AM -0500, Marshall Eubanks wrote: > As far as I know, the users of SSM are a set of measure zero. > > However, from time to time there are tests. > > Compare > http://netflow.internet2.edu/weekly/longit/ssm-octets.png > with > http://netflow.internet2.edu/weekly/longit/multicast-octets.png > > Pay attention to the scales on the Y axes. > > I would love to hear of assertions that disprove the above. We're using IPv6 SSM, as are a number of academic sites in Europe, currently with the Mad-Flute reliable multicast file transfer protocol, but also for some streaming. This is not commercial, but we have commercial interest in pilots. Tim _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 10:16:31 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA07046 for ; Wed, 17 Nov 2004 10:16:31 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUROB-0004Y3-W6; Wed, 17 Nov 2004 10:06:31 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CURKn-0002qh-7G for ssm@megatron.ietf.org; Wed, 17 Nov 2004 10:03:01 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA05370 for ; Wed, 17 Nov 2004 10:02:59 -0500 (EST) Received: from clarinet.u-strasbg.fr ([130.79.90.157]) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1CURNA-0002yI-O2 for ssm@ietf.org; Wed, 17 Nov 2004 10:05:32 -0500 Received: (qmail 9540 invoked for bounce); 17 Nov 2004 15:02:54 -0000 Received: from unknown (HELO ?130.79.90.163?) (hoerdt@unknown) by unknown with RC4-MD5 encrypted SMTP; 17 Nov 2004 15:02:54 -0000 Message-ID: <419B6720.4070504@clarinet.u-strasbg.fr> Date: Wed, 17 Nov 2004 15:58:40 +0100 From: Hoerdt Mickael User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.7.3) Gecko/20041007 Debian/1.7.3-5 X-Accept-Language: en MIME-Version: 1.0 To: Tim Chown References: <22794.1100698216@www62.gmx.net> <20041117144715.GO25721@login.ecs.soton.ac.uk> In-Reply-To: <20041117144715.GO25721@login.ecs.soton.ac.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-Spam-Score: 0.0 (/) X-Scan-Signature: 0ddefe323dd869ab027dbfff7eff0465 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by ietf.org id KAA05370 Cc: ssm@ietf.org, Marshall Eubanks Subject: [ssm] A X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: quoted-printable Tim Chown a =E9crit : >On Wed, Nov 17, 2004 at 09:28:06AM -0500, Marshall Eubanks wrote: > =20 > >>As far as I know, the users of SSM are a set of measure zero. >> >> =20 >> That's quite logical : SSM is 5 years old (counting from the first 1999=20 Express SIGCOMM paper) compared with ASM which is almost 20 years old=20 (counting from the first SIGCOMM host group model definition from Deering in 1985). But SSM could grow=20 faster, as it rely on the same routing routing architecture than ASM ;) For information, at the time of writing, linux is the only operating=20 system supporting IPv4/IPv6 SSM natively (first patch starting from 21 may 2003 are now included in the=20 main kernel). Hoerdt Micka=EBl >>However, from time to time there are tests. >> >>Compare >>http://netflow.internet2.edu/weekly/longit/ssm-octets.png >>with=20 >>http://netflow.internet2.edu/weekly/longit/multicast-octets.png >> >>Pay attention to the scales on the Y axes. >> >>I would love to hear of assertions that disprove the above. >> =20 >> > >We're using IPv6 SSM, as are a number of academic sites in Europe, curre= ntly >with the Mad-Flute reliable multicast file transfer protocol, but also >for some streaming. > >This is not commercial, but we have commercial interest in pilots. > >Tim > >_______________________________________________ >ssm mailing list >ssm@ietf.org >https://www1.ietf.org/mailman/listinfo/ssm > =20 > _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 10:31:54 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA08714 for ; Wed, 17 Nov 2004 10:31:54 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CURhn-0002YN-SD; Wed, 17 Nov 2004 10:26:47 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CURcT-0001Te-40 for ssm@megatron.ietf.org; Wed, 17 Nov 2004 10:21:17 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA07773 for ; Wed, 17 Nov 2004 10:21:14 -0500 (EST) Received: from sj-iport-1-in.cisco.com ([171.71.176.70] helo=sj-iport-1.cisco.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CURet-0003ML-32 for ssm@ietf.org; Wed, 17 Nov 2004 10:23:48 -0500 Received: from sj-core-5.cisco.com (171.71.177.238) by sj-iport-1.cisco.com with ESMTP; 17 Nov 2004 07:35:54 -0800 X-BrightmailFiltered: true Received: from edison.cisco.com (edison.cisco.com [171.71.180.109]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id iAHFKgPJ008786; Wed, 17 Nov 2004 07:20:42 -0800 (PST) Received: from bwilliam-t30.cisco.com (rcdn-bwilliam-3002-2.cisco.com [10.89.26.27]) by edison.cisco.com (8.8.6 (PHNE_14041)/CISCO.SERVER.1.2) with ESMTP id HAA29692; Wed, 17 Nov 2004 07:20:41 -0800 (PST) Message-Id: <6.0.0.22.2.20041117091703.033fc290@edison.cisco.com> X-Sender: bwilliam@edison.cisco.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Wed, 17 Nov 2004 09:21:08 -0600 To: "Marc Barisch" , ssm@ietf.org From: Beau Williamson Subject: Re: [ssm] Who uses SSM? In-Reply-To: <22794.1100698216@www62.gmx.net> References: <22794.1100698216@www62.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Spam-Score: 0.0 (/) X-Scan-Signature: ea4ac80f790299f943f0a53be7e1a21a X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org At 11/17/2004 07:30 AM, Marc Barisch wrote: >Hi > >I have read about the advantages of PIM-SSM over PIM-SM from a technical >point of view. >For a seminar paper at my university, I would like to provide some figures >concerning the deployment of the different PIM modes, especially regarding >TV broadcast over packet networks. > >Does anybody know of providers using PIM-SSM or are using all PIM-SM? >Are there any commercial deployments regarding PIM-SSM and IPv6. > >Thanks in advance > >Marc Marc, This is a classic case of "The spirit is willing but the flesh (hardware) is weak." The advantages are certainly well known and there is a growing push to build networks that support SSM. Unfortunately, the support for IGMPv3 is still not pervasive enough in end-stations and (in some cases) edge routers and switches to actually deploy SSM. This is slowly changing and I expect (I hope) that we will soon see greater deployments of SSM for one-to-many multicast applications. Beau Williamson _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 14:11:45 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA00398 for ; Wed, 17 Nov 2004 14:11:45 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUV5k-0002EY-BF; Wed, 17 Nov 2004 14:03:44 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUV3J-0001oF-D0 for ssm@megatron.ietf.org; Wed, 17 Nov 2004 14:01:13 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA29791 for ; Wed, 17 Nov 2004 14:01:11 -0500 (EST) Received: from raven.ecs.soton.ac.uk ([152.78.70.1]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUV5j-0000c9-Vy for ssm@ietf.org; Wed, 17 Nov 2004 14:03:46 -0500 Received: from magpie.ecs.soton.ac.uk (magpie.ecs.soton.ac.uk [152.78.68.131]) by raven.ecs.soton.ac.uk (8.12.10/8.12.10) with ESMTP id iAHJ19Gn025073 for ; Wed, 17 Nov 2004 19:01:09 GMT Received: from login.ecs.soton.ac.uk (IDENT:root@login [152.78.68.162]) by magpie.ecs.soton.ac.uk (8.9.3/8.9.3) with ESMTP id TAA26055 for ; Wed, 17 Nov 2004 19:01:08 GMT Received: (from tjc@localhost) by login.ecs.soton.ac.uk (8.11.6/8.11.6) id iAHJ18N01656 for ssm@ietf.org; Wed, 17 Nov 2004 19:01:08 GMT Date: Wed, 17 Nov 2004 19:01:08 +0000 From: Tim Chown To: ssm@ietf.org Subject: Re: [ssm] Who uses SSM? Message-ID: <20041117190108.GQ32308@login.ecs.soton.ac.uk> References: <22794.1100698216@www62.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <22794.1100698216@www62.gmx.net> User-Agent: Mutt/1.4i X-MailScanner-Information: Please contact helpdesk@ecs.soton.ac.uk for more information X-ECS-MailScanner: Found to be clean X-MailScanner-From: tjc@smtp.ecs.soton.ac.uk X-Spam-Score: 0.0 (/) X-Scan-Signature: 52e1467c2184c31006318542db5614d5 X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org PS. See http://support.bbc.co.uk/multicast/streams.html Signs of v4 SSM activity (pre-commercial, as much as the BBC is commercial) Tim On Wed, Nov 17, 2004 at 02:30:16PM +0100, Marc Barisch wrote: > Hi > > I have read about the advantages of PIM-SSM over PIM-SM from a technical > point of view. > For a seminar paper at my university, I would like to provide some figures > concerning the deployment of the different PIM modes, especially regarding > TV broadcast over packet networks. > > Does anybody know of providers using PIM-SSM or are using all PIM-SM? > Are there any commercial deployments regarding PIM-SSM and IPv6. > > Thanks in advance > > Marc > > > -- > Geschenkt: 3 Monate GMX ProMail + 3 Top-Spielfilme auf DVD > ++ Jetzt kostenlos testen http://www.gmx.net/de/go/mail ++ > > _______________________________________________ > ssm mailing list > ssm@ietf.org > https://www1.ietf.org/mailman/listinfo/ssm -- Tim _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 14:54:25 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA05418 for ; Wed, 17 Nov 2004 14:54:25 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUVnW-0002T2-Gt; Wed, 17 Nov 2004 14:48:58 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUVak-0007oy-9r for ssm@megatron.ietf.org; Wed, 17 Nov 2004 14:35:46 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA03373 for ; Wed, 17 Nov 2004 14:35:44 -0500 (EST) Received: from zrc2s0jx.nortelnetworks.com ([47.103.122.112]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUVdA-0001M4-ET for ssm@ietf.org; Wed, 17 Nov 2004 14:38:19 -0500 Received: from zsc3c030.us.nortel.com (zsc3c030.us.nortel.com [47.81.138.30]) by zrc2s0jx.nortelnetworks.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id iAHJYjl12288; Wed, 17 Nov 2004 13:34:45 -0600 (CST) Received: by zsc3c030.us.nortel.com with Internet Mail Service (5.5.2653.19) id ; Wed, 17 Nov 2004 11:34:46 -0800 Message-ID: <2F1FC1DEA077D5119FAD00508BCFD6D2139A1B7C@zsc3c030.us.nortel.com> From: "Sundeep Singatwaria" To: "'Beau Williamson'" , Marc Barisch , ssm@ietf.org Subject: RE: [ssm] Who uses SSM? Date: Wed, 17 Nov 2004 11:34:44 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) X-Spam-Score: 0.5 (/) X-Scan-Signature: d2b46e3b2dfbff2088e0b72a54104985 X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0241699544==" Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --===============0241699544== Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C4CCDC.173D0866" This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C4CCDC.173D0866 Content-Type: text/plain; charset="ISO-8859-1" Beau - All routers that can support PIM-SM in hardware can also support PIM-SSM. We have customers using SSM mainly in the enterprise space. Sundeep -----Original Message----- From: ssm-bounces@ietf.org [mailto:ssm-bounces@ietf.org] Sent: Wednesday, November 17, 2004 7:21 AM To: Marc Barisch; ssm@ietf.org Subject: Re: [ssm] Who uses SSM? At 11/17/2004 07:30 AM, Marc Barisch wrote: >Hi > >I have read about the advantages of PIM-SSM over PIM-SM from a technical >point of view. >For a seminar paper at my university, I would like to provide some figures >concerning the deployment of the different PIM modes, especially regarding >TV broadcast over packet networks. > >Does anybody know of providers using PIM-SSM or are using all PIM-SM? >Are there any commercial deployments regarding PIM-SSM and IPv6. > >Thanks in advance > >Marc Marc, This is a classic case of "The spirit is willing but the flesh (hardware) is weak." The advantages are certainly well known and there is a growing push to build networks that support SSM. Unfortunately, the support for IGMPv3 is still not pervasive enough in end-stations and (in some cases) edge routers and switches to actually deploy SSM. This is slowly changing and I expect (I hope) that we will soon see greater deployments of SSM for one-to-many multicast applications. Beau Williamson _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm ------_=_NextPart_001_01C4CCDC.173D0866 Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable RE: [ssm] Who uses SSM?

Beau - All routers that can support PIM-SM in = hardware can also support PIM-SSM. We have customers using SSM mainly = in the enterprise space.

Sundeep

-----Original Message-----
From: ssm-bounces@ietf.org [mailto:ssm-bounces@ietf.org]
Sent: Wednesday, November 17, 2004 7:21 AM
To: Marc Barisch; ssm@ietf.org
Subject: Re: [ssm] Who uses SSM?


At 11/17/2004 07:30 AM, Marc Barisch wrote:
>Hi
>
>I have read about the advantages of PIM-SSM over = PIM-SM from a technical
>point of view.
>For a seminar paper at my university, I would = like to provide some figures
>concerning the deployment of the different PIM = modes, especially regarding
>TV broadcast over packet networks.
>
>Does anybody know of providers using PIM-SSM or = are using all PIM-SM?
>Are there any commercial deployments regarding = PIM-SSM and IPv6.
>
>Thanks in advance
>
>Marc

Marc,

This is a classic case of "The spirit is willing = but the flesh (hardware)
is weak."

The advantages are certainly well known and there is = a growing push to
build networks that support SSM.  = Unfortunately, the support for IGMPv3 is
still not pervasive enough in end-stations and (in = some cases) edge routers
and switches to actually deploy SSM.  This is = slowly changing and I expect
(I hope) that we will soon see greater deployments = of SSM for one-to-many
multicast applications.

Beau Williamson


_______________________________________________
ssm mailing list
ssm@ietf.org
https://www1.ietf.org/mailman/listinfo/ssm

------_=_NextPart_001_01C4CCDC.173D0866-- --===============0241699544== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Content-Transfer-Encoding: 7bit _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm --===============0241699544==-- From ssm-bounces@ietf.org Wed Nov 17 18:15:17 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA00745 for ; Wed, 17 Nov 2004 18:15:17 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUYjd-0007eh-9W; Wed, 17 Nov 2004 17:57:09 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUYcK-0005r2-U1 for ssm@megatron.ietf.org; Wed, 17 Nov 2004 17:49:37 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA28143 for ; Wed, 17 Nov 2004 17:49:34 -0500 (EST) Received: from rproxy.gmail.com ([64.233.170.201]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUYep-0008E0-0h for ssm@ietf.org; Wed, 17 Nov 2004 17:52:12 -0500 Received: by rproxy.gmail.com with SMTP id a36so953855rnf for ; Wed, 17 Nov 2004 14:48:59 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=nAY2I9bj2iBWHgmd2rQN84VptVkiEo8+1LdFFELslTGNspZOOOmYsjvp/Uqcq5Wd8qlGB4JLWHQDSNgmni5GAUkZTTxTDK4nRb2CdjEtIVdhS91zsgsGm8/adnjPO4sLfKqgbNDAau7G93f1nAccMpXfprKzG3O0TkzmYet0nJk= Received: by 10.38.83.67 with SMTP id g67mr267642rnb; Wed, 17 Nov 2004 14:48:59 -0800 (PST) Received: by 10.38.66.42 with HTTP; Wed, 17 Nov 2004 14:48:58 -0800 (PST) Message-ID: Date: Wed, 17 Nov 2004 17:48:58 -0500 From: Marshall Eubanks To: Beau Williamson Subject: Re: [ssm] Who uses SSM? In-Reply-To: <6.0.0.22.2.20041117091703.033fc290@edison.cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <22794.1100698216@www62.gmx.net> <6.0.0.22.2.20041117091703.033fc290@edison.cisco.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: 02ec665d00de228c50c93ed6b5e4fc1a Content-Transfer-Encoding: 7bit Cc: ssm@ietf.org X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Marshall Eubanks List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: 7bit Yes, indeed. The routers are the easy part. To adopt to SSM an application developer will need - An OS that supports IGMPv3 - An API that supports IGMPv3 - Code to obtain Source IP address information in addition to group addresses To implement it, typically a network architect will need - minor changes to "core" routers - IGMPv3 support from "edge" routers (may be expensive if these are old) - IGMP v3 support from IGMP snooping switches (an unexpected gotcha for the multicast community, I think it is fair to say) It will come, but it's a slow train indeed. Regards Marshall Eubanks On Wed, 17 Nov 2004 09:21:08 -0600, Beau Williamson wrote: > At 11/17/2004 07:30 AM, Marc Barisch wrote: > > > >Hi > > > >I have read about the advantages of PIM-SSM over PIM-SM from a technical > >point of view. > >For a seminar paper at my university, I would like to provide some figures > >concerning the deployment of the different PIM modes, especially regarding > >TV broadcast over packet networks. > > > >Does anybody know of providers using PIM-SSM or are using all PIM-SM? > >Are there any commercial deployments regarding PIM-SSM and IPv6. > > > >Thanks in advance > > > >Marc > > Marc, > > This is a classic case of "The spirit is willing but the flesh (hardware) > is weak." > > The advantages are certainly well known and there is a growing push to > build networks that support SSM. Unfortunately, the support for IGMPv3 is > still not pervasive enough in end-stations and (in some cases) edge routers > and switches to actually deploy SSM. This is slowly changing and I expect > (I hope) that we will soon see greater deployments of SSM for one-to-many > multicast applications. > > Beau Williamson > > > > > _______________________________________________ > ssm mailing list > ssm@ietf.org > https://www1.ietf.org/mailman/listinfo/ssm > _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Wed Nov 17 19:52:35 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA09192 for ; Wed, 17 Nov 2004 19:52:34 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUaU1-0008C7-KF; Wed, 17 Nov 2004 19:49:09 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUaR0-0007Q1-Am for ssm@megatron.ietf.org; Wed, 17 Nov 2004 19:46:03 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA08460 for ; Wed, 17 Nov 2004 19:45:58 -0500 (EST) Received: from sj-iport-2-in.cisco.com ([171.71.176.71] helo=sj-iport-2.cisco.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUaTW-0002Q2-7X for ssm@ietf.org; Wed, 17 Nov 2004 19:48:38 -0500 Received: from sj-core-1.cisco.com (171.71.177.237) by sj-iport-2.cisco.com with ESMTP; 17 Nov 2004 16:47:37 -0800 Received: from edison.cisco.com (edison.cisco.com [171.71.180.109]) by sj-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id iAI0jH3O023956; Wed, 17 Nov 2004 16:45:18 -0800 (PST) Received: from bwilliam-t30.cisco.com (syd-vpn-client-254-35.cisco.com [10.66.254.35]) by edison.cisco.com (8.8.6 (PHNE_14041)/CISCO.SERVER.1.2) with ESMTP id QAA07929; Wed, 17 Nov 2004 16:45:26 -0800 (PST) Message-Id: <6.0.0.22.2.20041117184448.033d1508@edison.cisco.com> X-Sender: bwilliam@edison.cisco.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Wed, 17 Nov 2004 18:45:23 -0600 To: "Sundeep Singatwaria" , Marc Barisch , ssm@ietf.org From: Beau Williamson Subject: RE: [ssm] Who uses SSM? In-Reply-To: <2F1FC1DEA077D5119FAD00508BCFD6D2139A1B7C@zsc3c030.us.norte l.com> References: <2F1FC1DEA077D5119FAD00508BCFD6D2139A1B7C@zsc3c030.us.nortel.com> Mime-Version: 1.0 X-Spam-Score: 0.5 (/) X-Scan-Signature: 825e642946eda55cd9bc654a36dab8c2 X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0906086129==" Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org --===============0906086129== Content-Type: multipart/alternative; boundary="=====================_1056409==.ALT" --=====================_1056409==.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed At 11/17/2004 01:34 PM, Sundeep Singatwaria wrote: >Beau - All routers that can support PIM-SM in hardware can also support >PIM-SSM. We have customers using SSM mainly in the enterprise space. Sundeep, The problem is not the routers, it's the switches and the hosts that don't completely support IGMPv3. Beau >Sundeep > >-----Original Message----- >From: ssm-bounces@ietf.org >[mailto:ssm-bounces@ietf.org] >Sent: Wednesday, November 17, 2004 7:21 AM >To: Marc Barisch; ssm@ietf.org >Subject: Re: [ssm] Who uses SSM? > >At 11/17/2004 07:30 AM, Marc Barisch wrote: > >Hi > > > >I have read about the advantages of PIM-SSM over PIM-SM from a technical > >point of view. > >For a seminar paper at my university, I would like to provide some figures > >concerning the deployment of the different PIM modes, especially regarding > >TV broadcast over packet networks. > > > >Does anybody know of providers using PIM-SSM or are using all PIM-SM? > >Are there any commercial deployments regarding PIM-SSM and IPv6. > > > >Thanks in advance > > > >Marc > >Marc, > >This is a classic case of "The spirit is willing but the flesh (hardware) >is weak." > >The advantages are certainly well known and there is a growing push to >build networks that support SSM. Unfortunately, the support for IGMPv3 is >still not pervasive enough in end-stations and (in some cases) edge routers >and switches to actually deploy SSM. This is slowly changing and I expect >(I hope) that we will soon see greater deployments of SSM for one-to-many >multicast applications. > >Beau Williamson > >_______________________________________________ >ssm mailing list >ssm@ietf.org >https://www1.ietf.org/mailman/listinfo/ssm > --=====================_1056409==.ALT Content-Type: text/html; charset="us-ascii" At 11/17/2004 01:34 PM, Sundeep Singatwaria wrote:

Beau - All routers that can support PIM-SM in hardware can also support PIM-SSM. We have customers using SSM mainly in the enterprise space.

Sundeep,

The problem is not the routers, it's the switches and the hosts that don't completely support IGMPv3.

Beau


Sundeep

-----Original Message-----
From: ssm-bounces@ietf.org [mailto:ssm-bounces@ietf.org]
Sent: Wednesday, November 17, 2004 7:21 AM
To: Marc Barisch; ssm@ietf.org
Subject: Re: [ssm] Who uses SSM?

At 11/17/2004 07:30 AM, Marc Barisch wrote:
>Hi
>
>I have read about the advantages of PIM-SSM over PIM-SM from a technical
>point of view.
>For a seminar paper at my university, I would like to provide some figures
>concerning the deployment of the different PIM modes, especially regarding
>TV broadcast over packet networks.
>
>Does anybody know of providers using PIM-SSM or are using all PIM-SM?
>Are there any commercial deployments regarding PIM-SSM and IPv6.
>
>Thanks in advance
>
>Marc

Marc,

This is a classic case of "The spirit is willing but the flesh (hardware)
is weak."

The advantages are certainly well known and there is a growing push to
build networks that support SSM.  Unfortunately, the support for IGMPv3 is
still not pervasive enough in end-stations and (in some cases) edge routers
and switches to actually deploy SSM.  This is slowly changing and I expect
(I hope) that we will soon see greater deployments of SSM for one-to-many
multicast applications.

Beau Williamson

_______________________________________________
ssm mailing list
ssm@ietf.org
https://www1.ietf.org/mailman/listinfo/ssm
--=====================_1056409==.ALT-- --===============0906086129== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Content-Transfer-Encoding: 7bit _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm --===============0906086129==-- From ssm-bounces@ietf.org Thu Nov 18 09:32:08 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA28393 for ; Thu, 18 Nov 2004 09:32:08 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUn7y-00052R-H9; Thu, 18 Nov 2004 09:19:14 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CUmzD-0001a2-R1 for ssm@megatron.ietf.org; Thu, 18 Nov 2004 09:10:12 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA26644 for ; Thu, 18 Nov 2004 09:10:09 -0500 (EST) Received: from rproxy.gmail.com ([64.233.170.202]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1CUn1q-00023z-Vp for ssm@ietf.org; Thu, 18 Nov 2004 09:12:55 -0500 Received: by rproxy.gmail.com with SMTP id j1so473137rnf for ; Thu, 18 Nov 2004 06:10:05 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=E5Z3/h2kULidEZPta5MlnmJ7CQvFX/kTv96AYoc161cNSSe0V+8DR0E70Pxj+BKTEtbvuPG+vVwHQc3F8s9gzdbwSyl7PyGaQovrmiAeXpcg95DJjO/zn5Vxs9tKpUNnuCi1w4EfKQS2DGSKhDz+31kQqefv3lpKABOubhKZTVg= Received: by 10.38.104.80 with SMTP id b80mr447308rnc; Thu, 18 Nov 2004 06:10:05 -0800 (PST) Received: by 10.38.66.42 with HTTP; Thu, 18 Nov 2004 06:10:05 -0800 (PST) Message-ID: Date: Thu, 18 Nov 2004 09:10:05 -0500 From: Marshall Eubanks To: Beau Williamson Subject: Re: [ssm] Who uses SSM? In-Reply-To: <6.0.0.22.2.20041117184448.033d1508@edison.cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <2F1FC1DEA077D5119FAD00508BCFD6D2139A1B7C@zsc3c030.us.nortel.com> <6.0.0.22.2.20041117184448.033d1508@edison.cisco.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: 6cca30437e2d04f45110f2ff8dc1b1d5 Content-Transfer-Encoding: 7bit Cc: Sundeep Singatwaria , ssm@ietf.org X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Marshall Eubanks List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: 7bit My experience is that not all routers that support IGMP v2 can support v3. (Cisco and Juniper and Nortel do not make all of the world's routers.) This can be very hard to determine from product data sheets, by the way. I am glad to hear of SSM customers in the Enterprise space. Regards Marshall On Wed, 17 Nov 2004 18:45:23 -0600, Beau Williamson wrote: > At 11/17/2004 01:34 PM, Sundeep Singatwaria wrote: > > > Beau - All routers that can support PIM-SM in hardware can also support > PIM-SSM. We have customers using SSM mainly in the enterprise space. > Sundeep, > > The problem is not the routers, it's the switches and the hosts that don't > completely support IGMPv3. > > Beau > > > > > > Sundeep > > -----Original Message----- > From: ssm-bounces@ietf.org [mailto:ssm-bounces@ietf.org] > Sent: Wednesday, November 17, 2004 7:21 AM > To: Marc Barisch; ssm@ietf.org > Subject: Re: [ssm] Who uses SSM? > > At 11/17/2004 07:30 AM, Marc Barisch wrote: > >Hi > > > >I have read about the advantages of PIM-SSM over PIM-SM from a technical > >point of view. > >For a seminar paper at my university, I would like to provide some figures > >concerning the deployment of the different PIM modes, especially regarding > >TV broadcast over packet networks. > > > >Does anybody know of providers using PIM-SSM or are using all PIM-SM? > >Are there any commercial deployments regarding PIM-SSM and IPv6. > > > >Thanks in advance > > > >Marc > > Marc, > > This is a classic case of "The spirit is willing but the flesh (hardware) > is weak." > > The advantages are certainly well known and there is a growing push to > build networks that support SSM. Unfortunately, the support for IGMPv3 is > still not pervasive enough in end-stations and (in some cases) edge routers > and switches to actually deploy SSM. This is slowly changing and I expect > (I hope) that we will soon see greater deployments of SSM for one-to-many > multicast applications. > > Beau Williamson > > _______________________________________________ > ssm mailing list > ssm@ietf.org > https://www1.ietf.org/mailman/listinfo/ssm > _______________________________________________ > ssm mailing list > ssm@ietf.org > https://www1.ietf.org/mailman/listinfo/ssm > > > _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm From ssm-bounces@ietf.org Fri Nov 19 07:35:56 2004 Received: from megatron.ietf.org (megatron.ietf.org [132.151.6.71]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA24601 for ; Fri, 19 Nov 2004 07:35:56 -0500 (EST) Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CV7uG-0006cM-1C; Fri, 19 Nov 2004 07:30:28 -0500 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1CV7sw-0006KV-Gr for ssm@megatron.ietf.org; Fri, 19 Nov 2004 07:29:06 -0500 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA24017 for ; Fri, 19 Nov 2004 07:29:05 -0500 (EST) Received: from pop.gmx.net ([213.165.64.20] helo=mail.gmx.net) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1CV7vk-0002jN-Pn for ssm@ietf.org; Fri, 19 Nov 2004 07:32:01 -0500 Received: (qmail 26170 invoked by uid 0); 19 Nov 2004 12:28:33 -0000 Received: from 192.35.17.10 by www31.gmx.net with HTTP; Fri, 19 Nov 2004 13:28:33 +0100 (MET) Date: Fri, 19 Nov 2004 13:28:33 +0100 (MET) From: "Marc Barisch" To: Beau Williamson , ssm@ietf.org MIME-Version: 1.0 References: <6.0.0.22.2.20041117184448.033d1508@edison.cisco.com> Subject: RE: [ssm] Who uses SSM? X-Priority: 3 (Normal) X-Authenticated: #431471 Message-ID: <31915.1100867313@www31.gmx.net> X-Mailer: WWW-Mail 1.6 (Global Message Exchange) X-Flags: 0001 Content-Type: text/plain; charset="us-ascii" X-Spam-Score: 0.0 (/) X-Scan-Signature: 0fa76816851382eb71b0a882ccdc29ac Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by ietf.org id HAA24017 X-BeenThere: ssm@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Source-Specific Multicast List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: ssm-bounces@ietf.org Errors-To: ssm-bounces@ietf.org Content-Transfer-Encoding: quoted-printable Hello Beau, you said that some costumers of you are already using SSM. Can you provid= e some figures? How much is SSM used in percentage compared to SM or others= ? This would be very kind of you. Best regards Marc=20 > At 11/17/2004 01:34 PM, Sundeep Singatwaria wrote: >=20 > >Beau - All routers that can support PIM-SM in hardware can also suppor= t=20 > >PIM-SSM. We have customers using SSM mainly in the enterprise space. >=20 > Sundeep, >=20 > The problem is not the routers, it's the switches and the hosts that do= n't > completely support IGMPv3. >=20 > Beau >=20 >=20 > >Sundeep > > > >-----Original Message----- > >From: ssm-bounces@ietf.org=20 > >[mailto:ssm-bounces@ietf.org] > >Sent: Wednesday, November 17, 2004 7:21 AM > >To: Marc Barisch; ssm@ietf.org > >Subject: Re: [ssm] Who uses SSM? > > > >At 11/17/2004 07:30 AM, Marc Barisch wrote: > > >Hi > > > > > >I have read about the advantages of PIM-SSM over PIM-SM from a > technical > > >point of view. > > >For a seminar paper at my university, I would like to provide some > figures > > >concerning the deployment of the different PIM modes, especially > regarding > > >TV broadcast over packet networks. > > > > > >Does anybody know of providers using PIM-SSM or are using all PIM-SM= ? > > >Are there any commercial deployments regarding PIM-SSM and IPv6. > > > > > >Thanks in advance > > > > > >Marc > > > >Marc, > > > >This is a classic case of "The spirit is willing but the flesh (hardwa= re) > >is weak." > > > >The advantages are certainly well known and there is a growing push to > >build networks that support SSM. Unfortunately, the support for IGMPv= 3 > is > >still not pervasive enough in end-stations and (in some cases) edge > routers > >and switches to actually deploy SSM. This is slowly changing and I > expect > >(I hope) that we will soon see greater deployments of SSM for one-to-m= any > >multicast applications. > > > >Beau Williamson > > > >_______________________________________________ > >ssm mailing list > >ssm@ietf.org > >https://www1.ietf.org/mailma= n/listinfo/ssm > > >=20 --=20 NEU +++ DSL Komplett von GMX +++ http://www.gmx.net/de/go/dsl GMX DSL-Netzanschluss + Tarif zum superg=FCnstigen Komplett-Preis! _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm