Re: [lmap] AD evaluation: draft-ietf-lmap-information-model-16

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Wed, 08 February 2017 15:23 UTC

Return-Path: <j.schoenwaelder@jacobs-university.de>
X-Original-To: lmap@ietfa.amsl.com
Delivered-To: lmap@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E5373129BBE for <lmap@ietfa.amsl.com>; Wed, 8 Feb 2017 07:23:52 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.201
X-Spam-Level:
X-Spam-Status: No, score=-4.201 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9J77WbzikJ-n for <lmap@ietfa.amsl.com>; Wed, 8 Feb 2017 07:23:51 -0800 (PST)
Received: from atlas3.jacobs-university.de (atlas3.jacobs-university.de [212.201.44.18]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 51137129526 for <lmap@ietf.org>; Wed, 8 Feb 2017 07:23:51 -0800 (PST)
Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas3.jacobs-university.de (Postfix) with ESMTP id 1C7D376D; Wed, 8 Feb 2017 16:23:50 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from atlas3.jacobs-university.de ([10.70.0.205]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10030) with ESMTP id LfV--A0AkcbU; Wed, 8 Feb 2017 16:23:47 +0100 (CET)
Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas3.jacobs-university.de (Postfix) with ESMTPS; Wed, 8 Feb 2017 16:23:49 +0100 (CET)
Received: from localhost (demetrius3.jacobs-university.de [212.201.44.48]) by hermes.jacobs-university.de (Postfix) with ESMTP id AC98D200BE; Wed, 8 Feb 2017 16:23:49 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius3.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id A7DT0aLDVhMX; Wed, 8 Feb 2017 16:23:49 +0100 (CET)
Received: from elstar.local (elstar.jacobs.jacobs-university.de [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id 55F2E200BD; Wed, 8 Feb 2017 16:23:49 +0100 (CET)
Received: by elstar.local (Postfix, from userid 501) id 335063E6CE44; Wed, 8 Feb 2017 16:23:53 +0100 (CET)
Date: Wed, 08 Feb 2017 16:23:53 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Alissa Cooper <alissa@cooperw.in>
Message-ID: <20170208152353.GI98457@elstar.local>
Mail-Followup-To: Alissa Cooper <alissa@cooperw.in>, lmap@ietf.org
References: <2CB94EA6-A5F9-4770-9E76-0C7E8676E9CF@cooperw.in> <20170124160720.GB36955@elstar.local> <31441568-4107-4D08-9D7C-99C6A71F0FE0@cooperw.in> <20170126085354.GA43055@elstar.local> <80A34C5F-7E20-41CF-99DF-2222399CFF07@cooperw.in> <20170131094427.GA59387@elstar.local> <8456A767-C0A1-447D-959C-9E090AB4B50B@cooperw.in> <20170131194757.GA78531@elstar.local> <B05AB715-8270-4F89-92A2-0EB810E07A8C@cooperw.in>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
X-Clacks-Overhead: GNU Terry Pratchett
Content-Transfer-Encoding: 8bit
In-Reply-To: <B05AB715-8270-4F89-92A2-0EB810E07A8C@cooperw.in>
User-Agent: Mutt/1.6.0 (2016-04-01)
Archived-At: <https://mailarchive.ietf.org/arch/msg/lmap/AA-t4zDdEUQILg1_zWy-xe9TcHY>
Cc: lmap@ietf.org
Subject: Re: [lmap] AD evaluation: draft-ietf-lmap-information-model-16
X-BeenThere: lmap@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
Reply-To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
List-Id: Large Scale Measurement of Access network Performance <lmap.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/lmap>, <mailto:lmap-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/lmap/>
List-Post: <mailto:lmap@ietf.org>
List-Help: <mailto:lmap-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/lmap>, <mailto:lmap-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Feb 2017 15:23:53 -0000

On Tue, Feb 07, 2017 at 10:26:30AM -0500, Alissa Cooper wrote:
> 
> > On Jan 31, 2017, at 2:47 PM, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> wrote:
> > 
> > On Tue, Jan 31, 2017 at 09:15:52AM -0500, Alissa Cooper wrote:
> >> 
> >>> On Jan 31, 2017, at 4:44 AM, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> wrote:
> >>>> 
> >>> 
> >>> The status reports go to the LMAP controller, so I do not really see
> >>> why there is a specific risk since the controller has access to the
> >>> device ID anyway.
> >> 
> >> I still am missing what is the rationale for sending the device ID in the status reports. I thought the agent ID was meant to uniquely identify the MA.
> >> 
> > 
> > So here we go. I propose the following change:
> > 
> >  - The ma-status-agent-id becomes optional.
> >  - The ma-status-device-id becomes mandatory again.
> > 
> > Rationale:
> > 
> >  If a device does not yet have an MA-ID, then the device-id must be
> >  accessible such that the controller can configure an MA-ID.
> 
> Section 3.1 says:
> 
> "The MA may be pre-configured with an MA ID, or may use a Device ID in
>    the first Controller contact before it is assigned an MA ID.  The
>    Device ID may be a MAC address or some other device identifier
>    expressed as a URI.  If the MA ID is not provided at this stage then
>    it must be provided by the Controller during Configuration.”
> 
> Why would an MA be sending a status report before configuration?
> 

The ma-status-obj models status information, it is not modeling a
status report. I think the reason for having the device-id in the
status information is that this is the only way to obtain it if it is
not configured.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>