Received: from smtpout1.bayarea.net (smtpout1.bayarea.net [209.128.95.10]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6V8HOvf025374 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Sun, 31 Jul 2005 10:17:25 +0200 Received: from shell4.bayarea.net (shell4.bayarea.net [209.128.82.1]) by smtpout1.bayarea.net (8.12.10/8.12.10) with ESMTP id j6V8HRLb000597 for ; Sun, 31 Jul 2005 01:17:28 -0700 Received: from shell4.bayarea.net (localhost [127.0.0.1]) by shell4.bayarea.net (8.12.11/8.12.11) with ESMTP id j6V8HMAo000556 for ; Sun, 31 Jul 2005 01:17:22 -0700 Received: from localhost (dperkins@localhost) by shell4.bayarea.net (8.12.11/8.12.11/Submit) with ESMTP id j6V8HL3g000552 for ; Sun, 31 Jul 2005 01:17:22 -0700 X-Authentication-Warning: shell4.bayarea.net: dperkins owned process doing -bs Date: Sun, 31 Jul 2005 01:17:21 -0700 (PDT) From: "David T. Perkins" X-Sender: dperkins@shell4.bayarea.net To: nmrg@ibr.cs.tu-bs.de Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-IBRFilter-SpamReport: 0.001 () BAYES_50 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Subject: [nmrg] Data sheet for HP's Telephony management system X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 Jul 2005 08:17:27 -0000 HI, The following datasheet covers a lot of what management means... http://www.openview.hp.com/products/ovpi/ds/ovpi_rp_ip-telephony_ds.doc Regards, /david t. perkins Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6QDEFI7031568 for ; Tue, 26 Jul 2005 15:14:15 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 2E1E4393AB for ; Tue, 26 Jul 2005 15:14:15 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 08889-05 for ; Tue, 26 Jul 2005 15:14:13 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 73C453959F for ; Tue, 26 Jul 2005 15:14:06 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id E944739730F; Tue, 26 Jul 2005 12:36:29 +0200 (CEST) Resent-From: j.schoenwaelder@iu-bremen.de Resent-Date: Tue, 26 Jul 2005 12:36:29 +0200 Resent-Message-ID: <20050726103629.GE29151@boskop.local> Resent-To: nmrg@ibr.cs.tu-bs.de Received: from merkur.iu-bremen.de ([unix socket]) by merkur (Cyrus v2.2.3) with LMTP; Tue, 26 Jul 2005 11:15:27 +0200 X-Sieve: CMU Sieve 2.2 Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by merkur.iu-bremen.de (Postfix) with ESMTP id 142C359F6 for ; Tue, 26 Jul 2005 11:15:27 +0200 (CEST) Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 1016A391AD for ; Tue, 26 Jul 2005 11:15:27 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 27886-03 for ; Tue, 26 Jul 2005 11:15:25 +0200 (CEST) X-Greylist: delayed 729 seconds by postgrey-1.22rc1 at hermes; Tue, 26 Jul 2005 11:15:25 CEST Received: from localhost.localdomain (gw-pisa.netikos.com [213.92.114.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hermes.iu-bremen.de (Postfix) with ESMTP id A8A7C39185 for ; Tue, 26 Jul 2005 11:15:25 +0200 (CEST) Received: from [127.0.0.1] (localhost.localdomain [127.0.0.1]) by localhost.localdomain (8.13.4/8.13.1) with ESMTP id j6Q93EJM018062; Tue, 26 Jul 2005 11:03:15 +0200 Message-ID: <42E5FC52.1040204@ntop.org> Date: Tue, 26 Jul 2005 11:03:14 +0200 From: Luca Deri Organization: ntop.org User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050513 Fedora/1.7.8-2 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Juergen Schoenwaelder , Olivier Festor X-Enigmail-Version: 0.92.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-Spam-Status: No, hits=-4.9 tagged_above=-30.0 required=5.0 tests=BAYES_00 X-Spam-Level: X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -1.524 () BAYES_01 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: Subject: [nmrg] VoIP Meeting X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2005 13:14:22 -0000 Hi all, I;m writing you directly because in the past the mailing list has banned my messages (can you please check?). I wish I could attend your meeting, however as you already know I have funding problems. However I would like to contribute a bit to the discussion. As you know I have developed in the past a NetFlow v5/v9 GPL probe named nProbe (http://www.ntop.org/nProbe.html). Now I'm about to release (final tests) the new v4 that, using NF v9, allows VoIP (SIP+RTP) to be analyzed. In particular I have defined the following custom tags (that are also handled by ntop): Plugin SIP templates: [130] %SIP_CALL_ID SIP call-id [131] %SIP_CALLING_PARTY Call initiator [132] %SIP_CALLED_PARTY Called party [133] %SIP_RTP_CODECS RTP codecs [134] %SIP_INVITE_TIME SysUptime (msec) of INVITE [135] %SIP_TRYING_TIME SysUptime (msec) of Trying [136] %SIP_RINGING_TIME SysUptime (msec) of RINGING [137] %SIP_OK_TIME SysUptime (msec) of OK [138] %SIP_ACK_TIME SysUptime (msec) of ACK [139] %SIP_RTP_SRC_PORT RTP stream source port [140] %SIP_RTP_DST_PORT RTP stream destination port Plugin RTP templates: [150] %RTP_FIRST_SSRC First flow RTP Sync Source ID [151] %RTP_FIRST_TS First flow RTP timestamp [152] %RTP_LAST_SSRC Last flow RTP Sync Source ID [153] %RTP_LAST_TS Last flow RTP timestamp [154] %RTP_JITTER RTP Jitter [155] %RTP_PKT_LOST Packet lost in stream [156] %RTP_PAYLOAD_TYPE RTP payload type [157] %RTP_MAX_DELTA RTP max delta (ms * 100) between consecutive pkts The architecture is based on plugins, so it's possible to easily add new plugins that implement either new tags or that do other tasks as flow dump etc. If you believe this info is interesting for you meeting, fell free to share it. Chees, Luca -- Luca Deri http://luca.ntop.org/ Hacker: someone who loves to program and enjoys being clever about it - Richard Stallman Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6QDEEI7031562 for ; Tue, 26 Jul 2005 15:14:14 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id E2F78393AB for ; Tue, 26 Jul 2005 15:14:13 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 08842-08 for ; Tue, 26 Jul 2005 15:14:13 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 7CF793964F for ; Tue, 26 Jul 2005 15:14:06 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id F146D3973E5; Tue, 26 Jul 2005 13:22:44 +0200 (CEST) Date: Tue, 26 Jul 2005 13:22:44 +0200 From: Juergen Schoenwaelder To: nmrg@ibr.cs.tu-bs.de Message-ID: <20050726112244.GB29321@boskop.local> Mail-Followup-To: nmrg@ibr.cs.tu-bs.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.9i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -0.908 () BAYES_10 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Subject: [nmrg] nancy meeting page updated X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2005 13:14:14 -0000 I have updated the Nancy meeting web page: http://www.ibr.cs.tu-bs.de/projects/nmrg/meetings/2005/nancy/ I have added a bunch of abstracts (for those presentations where I was able to find an abstract in my email archives) and I started to assemble a reading list, basically pointers to IDs and RFCs. I also started a section where I collect the slides. If you have additional material (abstracts not yet listed, stuff that should go into the reading list, slides) please send it to me so that I can make it available for everyone. I will be online until Thursday evening (European time). /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from macker.loria.fr (macker.loria.fr [152.81.1.70]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PKi3I7009677 for ; Mon, 25 Jul 2005 22:44:05 +0200 Received: from localhost.loria.fr (localhost [127.0.0.1]) by localhost (Postfix) with ESMTP id 5016D5168E; Mon, 25 Jul 2005 22:44:01 +0200 (CEST) X-Amavix: Anti-virus check done by ClamAV X-Amavix: Scanned by Amavix Received: from [152.81.29.241] (loriavpncisco241.loria.fr [152.81.29.241]) by macker.loria.fr (Postfix) with ESMTP id C1C1A516CD; Mon, 25 Jul 2005 22:43:58 +0200 (CEST) Message-ID: <42E54F0F.6000909@loria.fr> Date: Mon, 25 Jul 2005 22:43:59 +0200 From: Olivier Festor User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: j.schoenwaelder@iu-bremen.de Subject: Re: [nmrg] nancy meeting agenda updated References: <0E84D1EE8EC3C441839996AE4F788203574E9C@xmb-sjc-216.amer.cisco.com> <20050725174203.GA25783@boskop.local> In-Reply-To: <20050725174203.GA25783@boskop.local> Content-Type: multipart/alternative; boundary="------------030305030605090509020000" X-IBRFilter-SpamReport: 0.218 () BAYES_44,HTML_MESSAGE,HTML_TITLE_EMPTY X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 20:44:13 -0000 This is a multi-part message in MIME format. --------------030305030605090509020000 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I confirm that the easiest & fastest way from Paris to Nancy is to take the train. Anyway if you plan to join us by car, it will take you about 3.5 hours. www.viamichelin.fr (or viamichelin.co.uk) will give you all details regarding directions and duration for a trip by car. I recommend to choose the option 'prefer motorway' when you select your trip if you are not familiar with the french driving environment. Also note that Charles de Gaule airport is in Roissy and not in Paris. It may help ;-) /Olivier Juergen Schoenwaelder wrote: >On Mon, Jul 25, 2005 at 09:36:33AM -0700, Azita Kia (akia) wrote: > > > >>Can someone please point me to the drivng directions, or an online tool >>that can create them, from Paris to Loria ? >> >> > >I believe the easiest choice is really to take the train. Unless you >really want to have this special experience of driving a car in France >and through Paris in particular. > >Olivier Festor might have more details for you in case you really want >to go by car. > >/js > > > --------------030305030605090509020000 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I confirm that the easiest & fastest way from Paris to Nancy is to take the train. Anyway if you plan to join us by car, it will take you about 3.5 hours.

www.viamichelin.fr (or viamichelin.co.uk) will give you all details regarding directions and duration for a trip by car. I recommend to choose the option 'prefer motorway' when you select your trip  if you are not familiar with the french driving environment. Also note that Charles de Gaule airport is in Roissy and not in Paris. It may help ;-)

/Olivier

Juergen Schoenwaelder wrote: 
On Mon, Jul 25, 2005 at 09:36:33AM -0700, Azita Kia (akia) wrote:
 
  
Can someone please point me to the drivng directions, or an online tool
that can create them, from Paris to Loria ?
    

I believe the easiest choice is really to take the train. Unless you
really want to have this special experience of driving a car in France
and through Paris in particular. 

Olivier Festor might have more details for you in case you really want 
to go by car.

/js
--------------030305030605090509020000-- Received: from boskop.local (I89cc.i.pppool.de [85.73.137.204]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PI5JI7026535 for ; Mon, 25 Jul 2005 20:05:19 +0200 Received: by boskop.local (Postfix, from userid 501) id C293739645D; Mon, 25 Jul 2005 20:05:16 +0200 (CEST) Date: Mon, 25 Jul 2005 20:05:16 +0200 From: Juergen Schoenwaelder To: David B Harrington Subject: Re: [nmrg] nancy meeting agenda updated Message-ID: <20050725180516.GA25877@boskop.local> Mail-Followup-To: David B Harrington , nmrg@ibr.cs.tu-bs.de References: <20050725131149.GA25066@boskop.local> <20050725153718.904A0391AA@hermes.iu-bremen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050725153718.904A0391AA@hermes.iu-bremen.de> User-Agent: Mutt/1.5.9i X-IBRFilter-SpamReport: -1.524 () BAYES_01 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 18:05:20 -0000 On Mon, Jul 25, 2005 at 11:37:08AM -0400, David B Harrington wrote: > What would it take to capture the audio and make this available via > the NMRG web page? Potential participants in NMRG often seem to lack > travel funds (including myself). Being able to follow what was > presented and discussed would be nice. > > Does anybody have the equipment and software to capture the audio and > convert it to an MP3 file (or other file format) for the NMRG web > site? I am exploring the possibilities at the moment. The key is a hassle free recording device. Back in January 2004, Frank used his iSight camera mounted on his Mac and this produced next to the pictures acceptable audio without requiring participants to pick up a mike when they had something to say. Perhaps we can use a similar setup in Nancy. But it will be experimental - so it might or might not work out. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from boskop.local (I89cc.i.pppool.de [85.73.137.204]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PHg7I7019211 for ; Mon, 25 Jul 2005 19:42:08 +0200 Received: by boskop.local (Postfix, from userid 501) id E70993963E9; Mon, 25 Jul 2005 19:42:03 +0200 (CEST) Date: Mon, 25 Jul 2005 19:42:03 +0200 From: Juergen Schoenwaelder To: "Azita Kia (akia)" Subject: Re: [nmrg] nancy meeting agenda updated Message-ID: <20050725174203.GA25783@boskop.local> Mail-Followup-To: "Azita Kia (akia)" , nmrg@ibr.cs.tu-bs.de References: <0E84D1EE8EC3C441839996AE4F788203574E9C@xmb-sjc-216.amer.cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0E84D1EE8EC3C441839996AE4F788203574E9C@xmb-sjc-216.amer.cisco.com> User-Agent: Mutt/1.5.9i X-IBRFilter-SpamReport: -4.9 () BAYES_00 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 17:42:09 -0000 On Mon, Jul 25, 2005 at 09:36:33AM -0700, Azita Kia (akia) wrote: > Can someone please point me to the drivng directions, or an online tool > that can create them, from Paris to Loria ? I believe the easiest choice is really to take the train. Unless you really want to have this special experience of driving a car in France and through Paris in particular. Olivier Festor might have more details for you in case you really want to go by car. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from sj-iport-5.cisco.com (sj-iport-5.cisco.com [171.68.10.87]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PGaaI7031416 for ; Mon, 25 Jul 2005 18:36:37 +0200 Received: from sj-core-5.cisco.com (171.71.177.238) by sj-iport-5.cisco.com with ESMTP; 25 Jul 2005 09:36:36 -0700 X-IronPort-AV: i="3.95,140,1120460400"; d="scan'208"; a="200410706:sNHT39483784" Received: from xbh-sjc-231.amer.cisco.com (xbh-sjc-231.cisco.com [128.107.191.100]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id j6PGaZJL018692; Mon, 25 Jul 2005 09:36:35 -0700 (PDT) Received: from xmb-sjc-216.amer.cisco.com ([171.70.151.184]) by xbh-sjc-231.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 25 Jul 2005 09:36:35 -0700 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Subject: RE: [nmrg] nancy meeting agenda updated Date: Mon, 25 Jul 2005 09:36:33 -0700 Message-ID: <0E84D1EE8EC3C441839996AE4F788203574E9C@xmb-sjc-216.amer.cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [nmrg] nancy meeting agenda updated Thread-Index: AcWRI+XSHk/8a36vSZGb9a+1Acq+TQAEoYSA From: "Azita Kia \(akia\)" To: , X-OriginalArrivalTime: 25 Jul 2005 16:36:35.0007 (UTC) FILETIME=[056B3CF0:01C59137] X-IBRFilter-SpamReport: -0.001 () BAYES_44 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by agitator.ibr.cs.tu-bs.de id j6PGaaI7031416 X-Mailman-Approved-At: Tue, 26 Jul 2005 08:27:32 +0200 Cc: X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 16:36:38 -0000 Can someone please point me to the drivng directions, or an online tool that can create them, from Paris to Loria ? Thanks, Azita -----Original Message----- From: nmrg-bounces@ibr.cs.tu-bs.de [mailto:nmrg-bounces@ibr.cs.tu-bs.de] On Behalf Of Juergen Schoenwaelder Sent: Monday, July 25, 2005 6:12 AM To: nmrg@ibr.cs.tu-bs.de Subject: [nmrg] nancy meeting agenda updated I have updated the agenda for the 18th NMRG meeting in Nancy next weekend. Please check the updated meeting web page: http://www.ibr.cs.tu-bs.de/projects/nmrg/meetings/2005/nancy/ I basically squeezed all the prepared presentations and demonstrations into Saturday. This way, the ideas and perhaps differing views can settle in our brains during the evening. We will start on Sunday with discussions to identify research/engineering questions related to the whole VoIP management problem space and how they fit into a common picture. Once we have identified a list of topics, we will have another discuss to identify plans and followup activities to address at least some of the identified research/engineering questions. Like usual, we need to take minutes. I would prefer if someone can already volunteer to be our minute taker or scribe before the meeting. I also like to put the presentation material online - so please send me your slides in PDF format so that I can link the material to the web page. People arriving on Friday who want to join for dinner should show up at 08:00 pm in the Akena Prestige. We will then just look for a nice place somewhere in the city center which can host us. If you have any further questions, feel free to ask. Otherwise, I am looking forward to see you in Nancy. Have a safe trip. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany -- !! This message is brought to you via the `nmrg' mailing list. !! Please do not reply to this message to unsubscribe. To unsubscribe or adjust !! your settings, send a mail message to !! or look at https://www.ibr.cs.tu-bs.de/mailman/listinfo/nmrg. Received: from sccrmhc12.comcast.net (sccrmhc12.comcast.net [204.127.202.56]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PFbII7012878 for ; Mon, 25 Jul 2005 17:37:19 +0200 Message-Id: <200507251537.j6PFbII7012878@agitator.ibr.cs.tu-bs.de> Received: from djyxpy41 (c-24-128-104-6.hsd1.nh.comcast.net[24.128.104.6]) by comcast.net (sccrmhc12) with SMTP id <20050725153714012009udgge>; Mon, 25 Jul 2005 15:37:14 +0000 From: "David B Harrington" To: , Subject: RE: [nmrg] nancy meeting agenda updated Date: Mon, 25 Jul 2005 11:37:08 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.6353 Thread-Index: AcWRIwokLkHyc5DqR9iUNf/okwB2sgAC2JGg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: <20050725131149.GA25066@boskop.local> X-IBRFilter-SpamReport: 0 () X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) X-Mailman-Approved-At: Tue, 26 Jul 2005 08:27:32 +0200 Cc: X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: dbharrington@comcast.net List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 15:37:20 -0000 Hi, What would it take to capture the audio and make this available via the NMRG web page? Potential participants in NMRG often seem to lack travel funds (including myself). Being able to follow what was presented and discussed would be nice. Does anybody have the equipment and software to capture the audio and convert it to an MP3 file (or other file format) for the NMRG web site? Thanks, David Harrington dbharrington@comcast.net > -----Original Message----- > From: nmrg-bounces@ibr.cs.tu-bs.de > [mailto:nmrg-bounces@ibr.cs.tu-bs.de] On Behalf Of Juergen > Schoenwaelder > Sent: Monday, July 25, 2005 9:12 AM > To: nmrg@ibr.cs.tu-bs.de > Subject: [nmrg] nancy meeting agenda updated > > I have updated the agenda for the 18th NMRG meeting in Nancy next > weekend. Please check the updated meeting web page: > > http://www.ibr.cs.tu-bs.de/projects/nmrg/meetings/2005/nancy/ > > I basically squeezed all the prepared presentations and > demonstrations > into Saturday. This way, the ideas and perhaps differing > views can settle > in our brains during the evening. > > We will start on Sunday with discussions to identify > research/engineering > questions related to the whole VoIP management problem space > and how they > fit into a common picture. Once we have identified a list of > topics, we > will have another discuss to identify plans and followup > activities to > address at least some of the identified research/engineering > questions. > > Like usual, we need to take minutes. I would prefer if someone can > already volunteer to be our minute taker or scribe before the meeting. > I also like to put the presentation material online - so please send > me your slides in PDF format so that I can link the material to the > web page. > > People arriving on Friday who want to join for dinner should show up > at 08:00 pm in the Akena Prestige. We will then just look for a nice > place somewhere in the city center which can host us. > > If you have any further questions, feel free to ask. Otherwise, I > am looking forward to see you in Nancy. Have a safe trip. > > /js > > -- > Juergen Schoenwaelder International University Bremen > P.O. Box 750 561, > 28725 Bremen, Germany > -- > !! This message is brought to you via the `nmrg' mailing list. > !! Please do not reply to this message to unsubscribe. To > unsubscribe or adjust > !! your settings, send a mail message to > > !! or look at https://www.ibr.cs.tu-bs.de/mailman/listinfo/nmrg. > Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6PEDSI7018746 for ; Mon, 25 Jul 2005 16:13:28 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 4FFBE391E4 for ; Mon, 25 Jul 2005 16:13:28 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 13852-01 for ; Mon, 25 Jul 2005 16:13:27 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 6DC5C39185 for ; Mon, 25 Jul 2005 16:13:27 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id 0D283393DCE; Mon, 25 Jul 2005 15:11:49 +0200 (CEST) Date: Mon, 25 Jul 2005 15:11:49 +0200 From: Juergen Schoenwaelder To: nmrg@ibr.cs.tu-bs.de Message-ID: <20050725131149.GA25066@boskop.local> Mail-Followup-To: nmrg@ibr.cs.tu-bs.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.9i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -1.524 () BAYES_01 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Subject: [nmrg] nancy meeting agenda updated X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 14:13:29 -0000 I have updated the agenda for the 18th NMRG meeting in Nancy next weekend. Please check the updated meeting web page: http://www.ibr.cs.tu-bs.de/projects/nmrg/meetings/2005/nancy/ I basically squeezed all the prepared presentations and demonstrations into Saturday. This way, the ideas and perhaps differing views can settle in our brains during the evening. We will start on Sunday with discussions to identify research/engineering questions related to the whole VoIP management problem space and how they fit into a common picture. Once we have identified a list of topics, we will have another discuss to identify plans and followup activities to address at least some of the identified research/engineering questions. Like usual, we need to take minutes. I would prefer if someone can already volunteer to be our minute taker or scribe before the meeting. I also like to put the presentation material online - so please send me your slides in PDF format so that I can link the material to the web page. People arriving on Friday who want to join for dinner should show up at 08:00 pm in the Akena Prestige. We will then just look for a nice place somewhere in the city center which can host us. If you have any further questions, feel free to ask. Otherwise, I am looking forward to see you in Nancy. Have a safe trip. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from boskop.local (I9570.i.pppool.de [85.73.149.112]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6P6UgLZ029891 for ; Mon, 25 Jul 2005 08:30:42 +0200 Received: by boskop.local (Postfix, from userid 501) id F380D393B57; Mon, 25 Jul 2005 08:30:39 +0200 (CEST) Date: Mon, 25 Jul 2005 08:30:39 +0200 From: Juergen Schoenwaelder To: "David T. Perkins" Subject: Re: [nmrg] NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants Message-ID: <20050725063039.GA24415@boskop.local> Mail-Followup-To: "David T. Perkins" , nmrg@ibr.cs.tu-bs.de References: <785F86DC-9B59-478A-AAB5-3E31EDF624A4@loria.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i X-IBRFilter-SpamReport: -4.9 () BAYES_00 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 06:30:43 -0000 On Sun, Jul 24, 2005 at 07:20:14PM -0700, David T. Perkins wrote: > Also, are there any plans for a dinner together on friday night? No official plans yet. I will arrive around 6pm if the trains are on time and I am going to stay in the Akena Prestige. In France, people tend to have dinner late so we could simply say that we meet at the Akena Prestige at say 8pm and find a place from there. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from smtpout1.bayarea.net (smtpout1.BAYAREA.NET [209.128.95.10]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6P2KHLa016810 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Mon, 25 Jul 2005 04:20:18 +0200 Received: from shell4.bayarea.net (shell4.bayarea.net [209.128.82.1]) by smtpout1.bayarea.net (8.12.10/8.12.10) with ESMTP id j6P2KLLb009092; Sun, 24 Jul 2005 19:20:21 -0700 Received: from shell4.bayarea.net (localhost [127.0.0.1]) by shell4.bayarea.net (8.12.11/8.12.11) with ESMTP id j6P2KFHb029906; Sun, 24 Jul 2005 19:20:15 -0700 Received: from localhost (dperkins@localhost) by shell4.bayarea.net (8.12.11/8.12.11/Submit) with ESMTP id j6P2KENo029901; Sun, 24 Jul 2005 19:20:14 -0700 X-Authentication-Warning: shell4.bayarea.net: dperkins owned process doing -bs Date: Sun, 24 Jul 2005 19:20:14 -0700 (PDT) From: "David T. Perkins" X-Sender: dperkins@shell4.bayarea.net To: Olivier Festor Subject: Re: [nmrg] NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants In-Reply-To: <785F86DC-9B59-478A-AAB5-3E31EDF624A4@loria.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-IBRFilter-SpamReport: -0.904 () BAYES_30 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de, Juergen Schoenwaelder X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 02:20:22 -0000 HI, Also, are there any plans for a dinner together on friday night? Regards, /david t. perkins On Tue, 12 Jul 2005, Olivier Festor wrote: > Dear all, > > > Since the NMRG meeting in Nancy will take place during the week-end > where the lab is usually supposed to be closed, I need the list of > participants at least a week before the meeting takes place to get > some badges prepared. If you intend to join the meeting, please send > me a mail with your surname + Name (thats all I need). > > Best Regards > > Olivier Festor > Responsable Scientifique du projet MADYNES > LORIA-INRIA Lorraine > Olivier.Festor@loria.fr > > > -- > !! This message is brought to you via the `nmrg' mailing list. > !! Please do not reply to this message to unsubscribe. To unsubscribe or adjust > !! your settings, send a mail message to > !! or look at https://www.ibr.cs.tu-bs.de/mailman/listinfo/nmrg. > Received: from b500.nce.ufrj.br (b500.nce.ufrj.br [146.164.248.66]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6MKeHLZ006437 for ; Fri, 22 Jul 2005 22:40:18 +0200 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C58EFD.9066AF75" X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Date: Fri, 22 Jul 2005 17:39:53 -0300 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Voice quality monitoring at RNP (Brazilian Education and Research Network) Thread-Index: AcWO65CV3Yko2qR9SwqDKi6wtMb2AwAEd2bw From: "Paulo Henrique Aguiar Rodrigues" To: X-IBRFilter-SpamReport: 0.199 () BAYES_44,HTML_50_60,HTML_MESSAGE X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) X-Mailman-Approved-At: Sat, 23 Jul 2005 08:34:39 +0200 Subject: [nmrg] ENC: Voice quality monitoring at RNP (Brazilian Education and Research Network) X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2005 20:40:21 -0000 This is a multi-part message in MIME format. ------_=_NextPart_001_01C58EFD.9066AF75 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable To NMRG list: =20 This is information that may be of interest to some of you. =20 The Brazilian Education and Research Network (RNP) has deployed a VoIP quality monitoring architecture based on the collection via Radius of voice quality CDRs generated directly by modified VoIP clients. These clients use our own developed VQuality library. VQuality implements the E-model and its extensions for objective voice quality measurement. The library also supports generation of a customized voice quality CDR with extensions that permit transfer of quality parameters measured over different instants of time along the call. =20 Check http://www.voip.nce.ufrj.br/index_papers_2005_en.htm for paper. Revised version of this paper will be presented at MMNS 2005. Paulo Aguiar RNP VoIP Task Force Coordinator --------------------------------------------------------------------- Eliminate annoying spam! My mailbox is protected by iHateSpam, the #1-rated spam buster. http://www.ihatespam.net =20 ------_=_NextPart_001_01C58EFD.9066AF75 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

To NMRG = list:

 

This is information that = may be of interest to some of you.

 

The Brazilian Education = and Research Network (RNP) has deployed a VoIP quality monitoring = architecture based on the collection via Radius of voice quality CDRs generated = directly by modified VoIP clients. These clients use our own developed VQuality = library.  VQuality implements the E-model and its extensions for objective = voice quality measurement. The library also supports generation of a = customized voice quality CDR with extensions that permit transfer of quality parameters = measured over different instants of time along the = call.

 

Check http://www.= voip.nce.ufrj.br/index_papers_2005_en.htm for paper. Revised version of this paper will be presented at MMNS = 2005.

Paulo Aguiar

RNP VoIP Task Force Coordinator

----------------------------------------------= -----------------------
Eliminate annoying spam!

My mailbox is protected by iHateSpam, the #1-rated spam buster.
http://www.ihatespam.net

 

------_=_NextPart_001_01C58EFD.9066AF75-- Received: from boskop.local (I8c0c.i.pppool.de [85.73.140.12]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6C8wWSC016061 for ; Tue, 12 Jul 2005 10:58:33 +0200 Received: by boskop.local (Postfix, from userid 501) id 0C39A382E7A; Tue, 12 Jul 2005 10:58:31 +0200 (CEST) Date: Tue, 12 Jul 2005 10:58:31 +0200 From: Juergen Schoenwaelder To: Olivier Festor Message-ID: <20050712085831.GC11031@boskop.local> Mail-Followup-To: Olivier Festor , nmrg@ibr.cs.tu-bs.de References: <785F86DC-9B59-478A-AAB5-3E31EDF624A4@loria.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <785F86DC-9B59-478A-AAB5-3E31EDF624A4@loria.fr> User-Agent: Mutt/1.5.9i X-IBRFilter-SpamReport: -4.9 () BAYES_00 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de Subject: [nmrg] Re: NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jul 2005 08:58:34 -0000 On Tue, Jul 12, 2005 at 10:14:10AM +0200, Olivier Festor wrote: > Since the NMRG meeting in Nancy will take place during the week-end > where the lab is usually supposed to be closed, I need the list of > participants at least a week before the meeting takes place to get > some badges prepared. If you intend to join the meeting, please send > me a mail with your surname + Name (thats all I need). A good approximation is the list of names I have collected on the meeting web page. In fact, if someone think his/her name is missing, please drop me a note so that I can keep the meeting page current. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from tiere.net.avaya.com (tiere.net.avaya.com [198.152.12.100]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6C8HiSD016067 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Tue, 12 Jul 2005 10:17:45 +0200 Received: from tiere.net.avaya.com (localhost [127.0.0.1]) by tiere.net.avaya.com (Switch-3.1.2/Switch-3.1.0) with ESMTP id j6C8FBsO016266 for ; Tue, 12 Jul 2005 04:15:11 -0400 (EDT) Received: from IS0004AVEXU1.global.avaya.com (h135-64-105-51.avaya.com [135.64.105.51]) by tiere.net.avaya.com (Switch-3.1.2/Switch-3.1.0) with ESMTP id j6C8F7sO016189 for ; Tue, 12 Jul 2005 04:15:08 -0400 (EDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6603.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: [nmrg] NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants Date: Tue, 12 Jul 2005 11:17:38 +0300 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [nmrg] NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants Thread-Index: AcWGufp2utIyorZ1TJSyhUEpCaYXtwAAB4WA From: "Romascanu, Dan \(Dan\)" To: "Olivier Festor" , , "Juergen Schoenwaelder" X-IBRFilter-SpamReport: -0.001 () BAYES_44 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by agitator.ibr.cs.tu-bs.de id j6C8HiSD016067 Cc: X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jul 2005 08:17:46 -0000 I plan to attend. Dan Romascanu > -----Original Message----- > From: nmrg-bounces@ibr.cs.tu-bs.de > [mailto:nmrg-bounces@ibr.cs.tu-bs.de] On Behalf Of Olivier Festor > Sent: Tuesday, July 12, 2005 11:14 AM > To: nmrg@ibr.cs.tu-bs.de; Juergen Schoenwaelder > Cc: Olivier Festor > Subject: [nmrg] NMRG Meeting in Nancy, France on July 30 & > 31,2005 : Need list of participants > > Dear all, > > > Since the NMRG meeting in Nancy will take place during the > week-end where the lab is usually supposed to be closed, I > need the list of participants at least a week before the > meeting takes place to get some badges prepared. If you > intend to join the meeting, please send me a mail with your > surname + Name (thats all I need). > > Best Regards > > Olivier Festor > Responsable Scientifique du projet MADYNES LORIA-INRIA > Lorraine Olivier.Festor@loria.fr > > > -- > !! This message is brought to you via the `nmrg' mailing list. > !! Please do not reply to this message to unsubscribe. To > unsubscribe or adjust !! your settings, send a mail message > to !! or look at > https://www.ibr.cs.tu-bs.de/mailman/listinfo/nmrg. > Received: from macker.loria.fr (macker.loria.fr [152.81.1.70]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j6C8EFSC014639 for ; Tue, 12 Jul 2005 10:14:15 +0200 Received: from localhost.loria.fr (localhost [127.0.0.1]) by localhost (Postfix) with ESMTP id 4A357517CF; Tue, 12 Jul 2005 10:14:11 +0200 (CEST) X-Amavix: Anti-virus check done by ClamAV X-Amavix: Scanned by Amavix Received: from [152.81.10.54] (yoda.loria.fr [152.81.10.54]) by macker.loria.fr (Postfix) with ESMTP id A28E351796; Tue, 12 Jul 2005 10:14:10 +0200 (CEST) Mime-Version: 1.0 (Apple Message framework v730) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <785F86DC-9B59-478A-AAB5-3E31EDF624A4@loria.fr> Content-Transfer-Encoding: 7bit From: Olivier Festor Date: Tue, 12 Jul 2005 10:14:10 +0200 To: nmrg@ibr.cs.tu-bs.de, Juergen Schoenwaelder X-Mailer: Apple Mail (2.730) X-IBRFilter-SpamReport: -0.001 () BAYES_40 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: Olivier Festor Subject: [nmrg] NMRG Meeting in Nancy, France on July 30 & 31, 2005 : Need list of participants X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jul 2005 08:14:16 -0000 Dear all, Since the NMRG meeting in Nancy will take place during the week-end where the lab is usually supposed to be closed, I need the list of participants at least a week before the meeting takes place to get some badges prepared. If you intend to join the meeting, please send me a mail with your surname + Name (thats all I need). Best Regards Olivier Festor Responsable Scientifique du projet MADYNES LORIA-INRIA Lorraine Olivier.Festor@loria.fr Received: from [134.169.34.145] (astra.ibr.cs.tu-bs.de [134.169.34.145]) (authenticated bits=0) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j679eRXt010376 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO) for ; Thu, 7 Jul 2005 11:40:27 +0200 Message-ID: <42CCF88B.7060601@ibr.cs.tu-bs.de> Date: Thu, 07 Jul 2005 11:40:27 +0200 From: Klaus Sperner User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20050109 Debian/1.7.5-0.backports.org.1 X-Accept-Language: en MIME-Version: 1.0 To: nmrg@ibr.cs.tu-bs.de Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-IBRFilter-SpamReport: -4.9 () BAYES_00 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) X-Mailman-Approved-At: Fri, 08 Jul 2005 09:47:56 +0200 Subject: [nmrg] Announcement: View MIBs as SVG (scalable vector graphics) X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jul 2005 09:40:28 -0000 Hi All! During my master thesis (advised by Frank Strauss) I developed a new driver to the smidump program which generates SVG diagrams from MIB modules. If you are interested in getting an overview about a MIB module before you look at the details, this tool is made for you. For a much more detailed explanation of the driver look at the libsmi website: http://www.ibr.cs.tu-bs.de/projects/libsmi/svg/index.html . There you can find information about SVG viewers, installation and invocation and the generated SVG diagrams. Furthermore a web interface to smidump is provided which enables you to generate SVG diagrams online: http://www.ibr.cs.tu-bs.de/projects/libsmi/svg/mib2svg.cgi . So I invite you to install a SVG viewer, point your browser to the MIBtoSVG web interface and play around with it. Feedback is highly welcome, mail your comments and suggestions to the libsmi mailing list or directly to me. With kind regards, Klaus Sperner Received: from wes.hardakers.net (dcn236-43.dcn.davis.ca.us [168.150.236.43]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j66GpHrc010062 for ; Wed, 6 Jul 2005 18:51:17 +0200 Received: by wes.hardakers.net (Postfix, from userid 274) id D411A11DBB2; Wed, 6 Jul 2005 09:51:14 -0700 (PDT) From: Wes Hardaker To: Sharon Chisholm Organization: Sparta References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> <20050705140117.GA4704@boskop.local> <20050705170032.GD5516@boskop.local> Date: Wed, 06 Jul 2005 09:51:13 -0700 In-Reply-To: <20050705170032.GD5516@boskop.local> (Juergen Schoenwaelder's message of "Tue, 5 Jul 2005 19:00:32 +0200") Message-ID: User-Agent: Gnus/5.110003 (No Gnus v0.3) XEmacs/21.4 (Jumbo Shrimp, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-IBRFilter-SpamReport: -0.001 () BAYES_44 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org Subject: [nmrg] Re: nmrgScalability of Netconf X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2005 16:51:18 -0000 >>>>> On Tue, 5 Jul 2005 19:00:32 +0200, Juergen Schoenwaelder said: Juergen> I totally agree - but we continue to hear stories of boxes Juergen> dying with slightly more than a dozen IPsec associations. FYI, these are figures showing the number of IPsec SAs that a linux box handled a number of years ago (I forget the CPU speed of the laptop, but it had about 512Mb of memory). The IPsec stack was NISTs running on a 2.4 kernel. http://sbsm.hardakers.net/sadb-insert.png http://sbsm.hardakers.net/sadb-speed.png In short, just the creation of SAs (and these were manually created, not via IKE) didn't affect much till you got out into the >10000 range. (sorry about the fuzzy pictures... converted quickly from postscript) -- Wes Hardaker Sparta, Inc. Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j66FPdrc016239 for ; Wed, 6 Jul 2005 17:25:39 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 59F5F39A1F; Wed, 6 Jul 2005 17:25:39 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 20904-01; Wed, 6 Jul 2005 17:25:38 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 41A4D3959F; Wed, 6 Jul 2005 17:25:38 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id 355FD35938C; Wed, 6 Jul 2005 17:25:39 +0200 (CEST) Date: Wed, 6 Jul 2005 17:25:38 +0200 From: Juergen Schoenwaelder To: netconf@ops.ietf.org, nmrg@ibr.cs.tu-bs.de Message-ID: <20050706152538.GA7841@boskop.local> Mail-Followup-To: netconf@ops.ietf.org, nmrg@ibr.cs.tu-bs.de References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> <20050705140117.GA4704@boskop.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050705140117.GA4704@boskop.local> User-Agent: Mutt/1.5.8i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -1.524 () BAYES_01 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: Subject: [nmrg] Re: Scalability of Netconf X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2005 15:25:40 -0000 On Tue, Jul 05, 2005 at 04:01:17PM +0200, Juergen Schoenwaelder wrote: > I am running this script on a 3GHz Pentium with 512 MB Ram (so really > nothing high end for a management system) running Linux 2.6.10. I > keep 300 connections open and the funny thing is that this box does > not at really get stressed by this. The load never went above 0.1% > and was most of the time significantly below. The memory used excluding > buffers was ~235 MB. Today I was running 1200 ssh connections using the same basic script on the same box. The load again never went above 0.1 while the memory usage went up to ~494 MB. Shall I try 10.000 tomorrow? With 2GB of memory this should be possible. The two Linux XEON servers that play the remote end for 600 connections each do not seem to bother much about all this. /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from colo-dns-ext1.juniper.net (colo-dns-ext1.juniper.net [207.17.137.57]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j65JF4JY000385 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Tue, 5 Jul 2005 21:15:06 +0200 Received: from merlot.juniper.net (merlot.juniper.net [172.17.27.10]) by colo-dns-ext1.juniper.net (8.11.3/8.9.3) with ESMTP id j65JEc934622; Tue, 5 Jul 2005 12:14:38 -0700 (PDT) (envelope-from phil@juniper.net) Received: from idle.juniper.net (leida.juniper.net [172.18.16.26]) by merlot.juniper.net (8.11.3/8.11.3) with ESMTP id j65JEWj64702; Tue, 5 Jul 2005 12:14:32 -0700 (PDT) (envelope-from phil@juniper.net) Received: from idle.juniper.net (localhost [127.0.0.1]) by idle.juniper.net (8.12.6/8.11.3) with ESMTP id j65JK0YE053393; Tue, 5 Jul 2005 15:20:00 -0400 (EDT) (envelope-from phil@idle.juniper.net) Message-Id: <200507051920.j65JK0YE053393@idle.juniper.net> To: j.schoenwaelder@iu-bremen.de Subject: Re: [nmrg] Re: nmrgScalability of Netconf In-Reply-To: Your message of "Tue, 05 Jul 2005 19:00:32 +0200." <20050705170032.GD5516@boskop.local> Date: Tue, 05 Jul 2005 15:20:00 -0400 From: Phil Shafer X-IBRFilter-SpamReport: -0.001 () BAYES_44 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: Sharon Chisholm , Wes Hardaker , nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2005 19:15:08 -0000 Juergen Schoenwaelder writes: >filling 512 MB (or >you can easily and cheaply get 1GB or more these days) with ssh state >data also requires rather poor implementations (like my stupid script >for example). Or the use of java ;^)/2 Thanks, Phil Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j65H0ZJX025477 for ; Tue, 5 Jul 2005 19:00:35 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id E5B3A39A44; Tue, 5 Jul 2005 19:00:34 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 23577-06; Tue, 5 Jul 2005 19:00:34 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id C84B539A3B; Tue, 5 Jul 2005 19:00:33 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id D5D07358336; Tue, 5 Jul 2005 19:00:32 +0200 (CEST) Date: Tue, 5 Jul 2005 19:00:32 +0200 From: Juergen Schoenwaelder To: Wes Hardaker Subject: Re: [nmrg] Re: nmrgScalability of Netconf Message-ID: <20050705170032.GD5516@boskop.local> Mail-Followup-To: Wes Hardaker , Sharon Chisholm , nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> <20050705140117.GA4704@boskop.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.8i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -0.001 () BAYES_40 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: Sharon Chisholm , nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2005 17:00:37 -0000 On Tue, Jul 05, 2005 at 09:04:58AM -0700, Wes Hardaker wrote: > I'd expect the limiting fact in that to be the memory not the CPU > speed. Machines of that caliber can handle huge numbers of web > connections without blinking much. The number of TCP connections > won't be the limiting factor at all, I don't think. The CPU speed > will certainly be affected by the continuous stream of cryptographic > connections, but unless you're doing something like using multiple > clients connecting at once you have no way to be sure that the server > is not the limiting factor there and not your client. I totally agree - but we continue to hear stories of boxes dying with slightly more than a dozen IPsec associations. And I do know from experience that some OSes are not as scalable as some other OSes. Some OSes are rather good these days in dynamically allocating TCP control blocks and process table entries when needed. In the not so good old days, these things often had static limits you could run into. But this is mostly history now. I am actually not even sure memory is the issue - filling 512 MB (or you can easily and cheaply get 1GB or more these days) with ssh state data also requires rather poor implementations (like my stupid script for example). /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany Received: from wes.hardakers.net (dcn236-43.dcn.davis.ca.us [168.150.236.43]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j65G55JX007046 for ; Tue, 5 Jul 2005 18:05:06 +0200 Received: by wes.hardakers.net (Postfix, from userid 274) id 8F56B11DE30; Tue, 5 Jul 2005 09:05:00 -0700 (PDT) From: Wes Hardaker To: Sharon Chisholm Organization: Sparta References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> <20050705140117.GA4704@boskop.local> Date: Tue, 05 Jul 2005 09:04:58 -0700 In-Reply-To: <20050705140117.GA4704@boskop.local> (Juergen Schoenwaelder's message of "Tue, 5 Jul 2005 16:01:17 +0200") Message-ID: User-Agent: Gnus/5.110003 (No Gnus v0.3) XEmacs/21.4 (Jumbo Shrimp, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-IBRFilter-SpamReport: 0.001 () BAYES_50 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org Subject: [nmrg] Re: nmrgScalability of Netconf X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2005 16:05:11 -0000 >>>>> On Tue, 5 Jul 2005 16:01:17 +0200, Juergen Schoenwaelder said: Juergen> I am running this script on a 3GHz Pentium with 512 MB Ram Juergen> (so really nothing high end for a management system) running Juergen> Linux 2.6.10. I keep 300 connections open and the funny thing Juergen> is that this box does not at really get stressed by this. The Juergen> load never went above 0.1% and was most of the time Juergen> significantly below. The memory used excluding buffers was Juergen> ~235 MB. I'd expect the limiting fact in that to be the memory not the CPU speed. Machines of that caliber can handle huge numbers of web connections without blinking much. The number of TCP connections won't be the limiting factor at all, I don't think. The CPU speed will certainly be affected by the continuous stream of cryptographic connections, but unless you're doing something like using multiple clients connecting at once you have no way to be sure that the server is not the limiting factor there and not your client. -- Wes Hardaker Sparta, Inc. Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j65E39JX032575 for ; Tue, 5 Jul 2005 16:03:10 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 4C55639A3F; Tue, 5 Jul 2005 16:03:10 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 13114-06; Tue, 5 Jul 2005 16:03:08 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 3E736399CA; Tue, 5 Jul 2005 16:03:09 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id 963CC358050; Tue, 5 Jul 2005 16:03:08 +0200 (CEST) Date: Tue, 5 Jul 2005 16:03:08 +0200 From: Juergen Schoenwaelder To: Sharon Chisholm Message-ID: <20050705140308.GB4704@boskop.local> Mail-Followup-To: Sharon Chisholm , netconf@ops.ietf.org, nmrg@ibr.cs.tu-bs.de References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> <20050705140117.GA4704@boskop.local> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="/9DWx/yDrRhgMJTb" Content-Disposition: inline In-Reply-To: <20050705140117.GA4704@boskop.local> User-Agent: Mutt/1.5.8i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -4.9 () BAYES_00 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org Subject: [nmrg] Re: Scalability of Netconf X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2005 14:03:11 -0000 --/9DWx/yDrRhgMJTb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 05, 2005 at 04:01:17PM +0200, Juergen Schoenwaelder wrote: > P.S. Attached is the ugly quick and dirty script - I am sorry for > using Tcl and not Perl - I am sure Perl will make this faster. :-) Sorry, as usual I forgot to attach... /js -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany --/9DWx/yDrRhgMJTb Content-Type: application/x-tcl Content-Disposition: attachment; filename="ssh-test.tcl" Content-Transfer-Encoding: quoted-printable #! /usr/bin/tclsh=0A=0Aset host $argv=0Aset msg "hello world"=0A=0Aproc deb= ug {msg} {=0A puts stderr $msg=0A}=0A=0Aproc test {f} {=0A global msg= =0A debug "testing $f"=0A puts $f $msg=0A flush $f=0A debug "+-= > write ok"=0A gets $f reply=0A if {[eof $f]} {=0A error "$f: unexpec= ted EOF - remote end gone away?"=0A }=0A debug "+-> gets ok"=0A if= {[string compare $msg $reply] !=3D 0} {=0A error "$f: comparison failed: $= msg !=3D $reply"=0A }=0A debug "+-> cmp ok"=0A return 1=0A}=0A=0Af= or {set i 1} {$i <=3D 50} {incr i} {=0A set f($i) [open "| ssh -s $host = cat" r+]=0A debug "opened $f($i)"=0A after 50=0A test $f($i)=0A}= =0A=0Afor {set l 0} {$l < 1000} {incr l} {=0A debug "sleeping"=0A aft= er 2000=0A foreach i [array names f] {=0A after 10=0A test $f($i)=0A = }=0A}=0A=0Aforeach i [array names f] {=0A debug "closing $f($i)"=0A c= atch {close $f($i)}=0A}=0A=0Aexit=0A --/9DWx/yDrRhgMJTb-- Received: from hermes.iu-bremen.de (hermes.iu-bremen.de [212.201.44.23]) by agitator.ibr.cs.tu-bs.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id j65E1LJX032222 for ; Tue, 5 Jul 2005 16:01:22 +0200 Received: from localhost (demetrius.iu-bremen.de [212.201.44.32]) by hermes.iu-bremen.de (Postfix) with ESMTP id 790C739A47; Tue, 5 Jul 2005 16:01:21 +0200 (CEST) Received: from hermes.iu-bremen.de ([212.201.44.23]) by localhost (demetrius [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 12790-09; Tue, 5 Jul 2005 16:01:19 +0200 (CEST) Received: from boskop.local (unknown [10.50.250.214]) by hermes.iu-bremen.de (Postfix) with ESMTP id 4703A39A3F; Tue, 5 Jul 2005 16:01:20 +0200 (CEST) Received: by boskop.local (Postfix, from userid 501) id 959E435802E; Tue, 5 Jul 2005 16:01:18 +0200 (CEST) Date: Tue, 5 Jul 2005 16:01:17 +0200 From: Juergen Schoenwaelder To: Sharon Chisholm Message-ID: <20050705140117.GA4704@boskop.local> Mail-Followup-To: Sharon Chisholm , netconf@ops.ietf.org, nmrg@ibr.cs.tu-bs.de References: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <713043CE8B8E1348AF3C546DBE02C1B403FE42CF@zcarhxm2.corp.nortel.com> User-Agent: Mutt/1.5.8i X-Virus-Scanned: by amavisd-new 20030616p5 at demetrius.iu-bremen.de X-IBRFilter-SpamReport: -0.001 () BAYES_44 X-Scanned-By: MIMEDefang 2.24 (www . roaringpenguin . com / mimedefang) Cc: nmrg@ibr.cs.tu-bs.de, netconf@ops.ietf.org Subject: [nmrg] Re: Scalability of Netconf X-BeenThere: nmrg@ibr.cs.tu-bs.de X-Mailman-Version: 2.1.4 Precedence: list Reply-To: j.schoenwaelder@iu-bremen.de List-Id: Network Management Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2005 14:01:23 -0000 On Mon, Jul 04, 2005 at 01:19:57PM -0400, Sharon Chisholm wrote: > These would be interesting numbers to get. I've heard related (but > opposite?) concerns around being able to get the most out of each > netconf connection to ensure that more complex deployments don't max out > on connections. This might eventually require us to continue the > channelization discussions which was mainly deferred, but I think that > can wait a bit. First step would be to determine if this is really an > issue in practice. I am not yet done with my experiments. So far, I have writen a script which connects to ssh subsystems I called cat: Subsystem cat /bin/cat The script kicks off a standard ssh client to connect to a remote cat subsystem and then starts a loop where it periodically sends a message and checks whether that is echoed back correctly. Nothing fancy. (Note that this script is rather heavy weight since it requires a new ssh process for each connection - a more serious implementation would require some C code so that you can keep multiple connections in one process.) I am running this script on a 3GHz Pentium with 512 MB Ram (so really nothing high end for a management system) running Linux 2.6.10. I keep 300 connections open and the funny thing is that this box does not at really get stressed by this. The load never went above 0.1% and was most of the time significantly below. The memory used excluding buffers was ~235 MB. Given that the script is really a crude resource hog, the box performed much better than expected. The next step is probably to shoot for 1000 ssh connections with this crude script. I just have to setup more cat subsystems to talk to... /js P.S. I admit that my Mac OS X notebook does not behave that friendly since I was simply running out of slots in the process table. ;-) P.S. Attached is the ugly quick and dirty script - I am sorry for using Tcl and not Perl - I am sure Perl will make this faster. :-) -- Juergen Schoenwaelder International University Bremen P.O. Box 750 561, 28725 Bremen, Germany