RE: [NSIS] additional comment on draft-ietf-nsis-req-03.txt

john.loughney@nokia.com Thu, 11 July 2002 10:29 UTC

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Subject: RE: [NSIS] additional comment on draft-ietf-nsis-req-03.txt
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To: brunner@ccrle.nec.de, Georgios.Karagiannis@eln.ericsson.se, robert.hancock@roke.co.uk, nsis@ietf.org
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Hi All,

The current text states:

5.1.3 Modularity  
 
   A modular design allows for more lightweight implementations, if 
   fewer features are needed. Mutually exclusive solutions are 
   supported. Examples for modularity: 
    
   - Work over any kind of network (narrowband / broadband, error-prone 
   / reliable...) - This implies low bandwidth signaling and redundant 
   information must be supported if necessary.  
    
   - Uni- and bi-directional reservations are possible 
    
   - Extensible in the future with different add-ons for certain 
   environments or scenarios  

If I understand Georgios' request, he would like an addtional bullet,
which I would phrase:

   - Protocol layering, where appropriate.

Is that OK?

John



> -----Original Message-----
> From: ext Marcus Brunner [mailto:brunner@ccrle.nec.de]
> Sent: 11 July, 2002 13:00
> To: Georgios Karagiannis (ELN); 'Hancock, Robert'; Loughney John
> (NRC/Helsinki); nsis@ietf.org
> Subject: RE: [NSIS] additional comment on draft-ietf-nsis-req-03.txt
> 
> 
> Georgios,
> 
> Do you think we need more than two layers. If you say 
> hierarchical do you 
> mean N layers?
> 
> Marcus
> 
> --On Donnerstag, 11. Juli 2002 11:38 +0200 "Georgios 
> Karagiannis (ELN)" 
> <Georgios.Karagiannis@eln.ericsson.se> wrote:
> 
> > Hi Robert
> >
> > What I proposed is related to modularity and is similar to
> > the concept described in draft-braden-2level-signal-arch-00.txt
> > and in Section 5.5 in draft-hancock-nsis-fw-00, also
> > draft-westberg-nsis-edge-edge-framework-00.
> >
> > The concept in all these drafts is the same, namely, separate the
> > protocol functionality  in more than one layers.
> > In draft-braden-2level-signal-arch-00.txt this separation 
> is done in two
> > layers were the functionality is split between transport 
> and application
> > functionality.  In Section 5.5 in draft-hancock-nsis-fw-00 and also
> > draft-westberg-nsis-edge-edge-framework-00  the protocol 
> functionality is
> > split in three layers.
> >
> > Therefore, I think that the proposed bullet is relevant and 
> its right
> > place is the  modularity section.
> >
> > Best Regards,
> > Georgios
> >
> >
> > -----Original Message-----
> > From: Hancock, Robert [mailto:robert.hancock@roke.co.uk]
> > Sent: Thursday, July 11, 2002 1:04 AM
> > To: brunner@ccrle.nec.de; Georgios Karagiannis (ELN);
> > 'john.loughney@nokia.com'; nsis@ietf.org
> > Subject: RE: [NSIS] additional comment on draft-ietf-nsis-req-03.txt
> >
> >
> > hi,
> >
> > i'm slightly baffled by this.
> >
> > i was taking a wild guess that georgios was referring to
> > nsis-triggering-nsis scenarios (e.g. 5.5 in 
> draft-hancock-nsis-fw-00,
> > also draft-westberg-nsis-edge-edge-framework-00). if that's 
> the case,
> > isn't it covered by 5.3.6? [actually, i'm not certain that 
> this turns
> > into a feature visible in the protocol, it could be just a 
> way of using
> > the protocol; but we'll discover that during the framework.]
> >
> > if georgios is referring to transport/application layering as in
> > draft-braden-2level-signal-arch-00.txt then isn't this 
> covered by 5.1.4
> > (although we should probably refer to something more general than
> > QoS...). i certainly don't like the term 'hierarchical' for this.
> >
> > georgios, what is your concern?
> >
> > robert
> >
> >> -----Original Message-----
> >> From: Marcus Brunner [mailto:brunner@ccrle.nec.de]
> >> Sent: 10 July 2002 17:09
> >> To: Georgios Karagiannis (ELN); 'john.loughney@nokia.com';
> >> nsis@ietf.org
> >> Subject: RE: [NSIS] additional comment on 
> draft-ietf-nsis-req-03.txt
> >>
> >>
> >> John is right I aslo don't like multi-level XXX difficult to
> >> understand. I
> >> regard modularity as the right word in the title, but I will
> >> go over the
> >> text such that in really includes what Georgios means.
> >>
> >> Marcus
> >>
> >> --On Mittwoch, 10. Juli 2002 17:46 +0200 "Georgios 
> Karagiannis (ELN)"
> >> <Georgios.Karagiannis@eln.ericsson.se> wrote:
> >>
> >> > Hi John
> >> >
> >> > What about muliu level signaling?
> >> >
> >> > best regards,
> >> > Georgios
> >> >
> >> > -----Original Message-----
> >> > From: john.loughney@nokia.com [mailto:john.loughney@nokia.com]
> >> > Sent: Wednesday, July 10, 2002 5:45 PM
> >> > To: brunner@ccrle.nec.de; Georgios.Karagiannis@eln.ericsson.se;
> >> > nsis@ietf.org
> >> > Subject: RE: [NSIS] additional comment on 
> draft-ietf-nsis-req-03.txt
> >> >
> >> >
> >> > Hi Marcus,
> >> >
> >> >> Ok, I agree I will do some polishing of this for -04
> >> >> Marcus
> >> >>
> >> >> --On Mittwoch, 10. Juli 2002 15:58 +0200 "Georgios
> >> Karagiannis (ELN)"
> >> >> <Georgios.Karagiannis@eln.ericsson.se> wrote:
> >> >>
> >> >> > Hi Marcus
> >> >> >
> >> >> > The hierarchical levels are refering to protocol
> >> >> functionality levels.
> >> >> > A similar concept is presented in
> >> >> draft-braden-2level-signal-arch-00.txt
> >> >> > where two levels of protocol functionality are defined.
> >> >
> >> > I think this is OK, however I don't like the term 'hierarchical'
> >> > in this case.
> >> >
> >> > John
> >> >
> >> > _______________________________________________
> >> > nsis mailing list
> >> > nsis@ietf.org
> >> > https://www1.ietf.org/mailman/listinfo/nsis
> >>
> >>
> >>
> >> --------------------------------------
> >> Dr. Marcus Brunner
> >> Network Laboratories
> >> NEC Europe Ltd.
> >>
> >> E-Mail: brunner@ccrle.nec.de
> >> WWW:    http://www.ccrle.nec.de/
> >> personal home page: http://www.brubers.org/marcus
> > 
> ==============================================================
> ===========
> > =============== Permission is hereby granted to pass the 
> contents of this
> > communication to third parties and any restrictions regarding
> > confidentiality do not apply.
> 
> 
> 
> --------------------------------------
> Dr. Marcus Brunner
> Network Laboratories
> NEC Europe Ltd.
> 
> E-Mail: brunner@ccrle.nec.de
> WWW:    http://www.ccrle.nec.de/
> personal home page: http://www.brubers.org/marcus
> 
> 
> 

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