Re: [vnrg] FW: I-D Action:draft-shin-virtualization-meta-arch-01.txt

["Sergi Figuerola" <sergi.figuerola at i2cat.net>]

Dear all,

Thanks for the work, this is a good starting point.

Regarding the topic of domain and interdomain stated by Pedro, I wonder if we should consider what FEDERATION brings. I think it is important to distinguish the functionalities we expect the virtual resources may have when different domains interact.

We can consider that two virtual domains interact by means of the network control plane they have running on top, so most of these interdomain issues are already being studied by many projects and groups. Thus, we should identify what different may happen (if it is the case) compared to a physical (not virtual) interdomain network scenario. However, what is important to consider is the fact of interdomain when a service (or infrastructure) provider is using a resource from another stakeholder in order to be part of its domain, in that sense we may apply that this provider is FEDERATING virtual resources from other parties, with all it may bring at the administrative level also. Indeed something to clarify, thought.

Regards
Sergi
 

-----Mensaje original-----
De: vnrg-bounces at irtf.org [mailto:vnrg-bounces at irtf.org] En nombre de Pedro Andrés Aranda Gutiérrez
Enviado el: viernes, 30 / abril / 2010 06:27
Para: Sangjin Jeong; vnrg at irtf.org
Asunto: Re: [vnrg] FW: I-D Action:draft-shin-virtualization-meta-arch-01.txt

Dear all,

I'd first of alllike to thank all the writers of the draft. We now have a document to work upon!

My main comment is that the document is written as if current VPN technologies didn't exist and, IMvHO, this was confusing to me.
This is very much so (I fear) in the last paragraph before [3].
Another point is that there is a whole research topic which is not touched upon: domains and interdomain problems. The document very much follows the tradition of assuming planet-wide 'magic'
availability of virtualisation. But this will not be like this.
We will find providers making this happen and if we have to plan for several of them interacting in some cooperative/competitive environment. Rationalisation will finally show that sharing footprints is better in some situations that complete green-field deployment.
This can only happen with a sound interdomain interface.

I'd kindly ask to add this consideration to the I-D.

Kind regards, /PA

PS: I'm attaching a diff file with some language corrections, as well as some marks of points I think need more discussion to find a more accurate wording.

Sangjin Jeong escribió:
> Hello folks,
>  
> During the Anaheim meeting, it was agreed that "Network Virtualization Problem Statement" document was a good starting point, but more work needs to be done in order to cover various aspects. So, as a follow-up of the meeting. we would like to start discussion about the document. Please find the document in the link below. 
>  
> This document investigates problem spaces and requirements for supporting network virtualization. We have received several comments offline, but we are soliciting more comments.
>  
> Any comments are appreciated.
>  
> Regards,
> Sangjin
> 
> -----Original Message-----
> From: "Internet-Drafts at ietf.org" <Internet-Drafts at ietf.org> From Date: 
> 2010-03-04 PM 11:45:01
> To: "i-d-announce at ietf.org" <i-d-announce at ietf.org>
> Cc: 
> Subject: I-D Action:draft-shin-virtualization-meta-arch-01.txt
> 
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories. 
> 
>        Title           : Network Virtualization Problem Statement 
>        Author(s)       : S. Jeong, et al. 
>        Filename        : draft-shin-virtualization-meta-arch-01.txt 
>        Pages           : 9 
>        Date            : 2010-03-04 
> 
> This document analyzes and discusses the problem space of supporting 
> network virtualization in the networks.  Furthermore, some key 
> requirements for enabling network virtualization in the networks are 
> investigated and described.
> 
> A URL for this Internet-Draft is: 
> http://www.ietf.org/internet-drafts/draft-shin-virtualization-meta-arc
> h-01.txt
> 
> Internet-Drafts are also available by anonymous FTP at: 
> ftp://ftp.ietf.org/internet-drafts/
> 
> Below is the data which will enable a MIME compliant mail reader 
> implementation to automatically retrieve the ASCII version of the 
> Internet-Draft.
> 
> 
> 

-- 
Pedro A. Aranda Gutiérrez	Telefónica I+D
Technology Specialist		New Network Technologies
mailto: paag at tid.es		C/Emilio Vargas,6
Tlf: +34-913 374 702            E-28043 Madrid

"Fragen sind nicht da, um beantwortet zu werden.
  Fragen sind da, um gestellt zu werden" Georg Kreisler http://www.mendeley.com/profiles/pedro-a-aranda-gutierrez