Re: [vnrg] I-D Action:draft-jeong-vnrg-virtual-networks-ps-00.txt

[Adrian Farrel <Adrian.Farrel at huawei.com>]

Hi vnrg,

Please excuse me for not having been following your work - I plead insufficient
hours in the day (perhaps an opportunity for virtualization?).

I wanted to do two things briefly:
1. Check that you were aware of some IETF work on virtualization
2. Pick at Sangjin Jeong's draft

First, just to draw your attention to RFC 5623 . Although this work is limited
to the virtualization of network resources for the use in a "layered" network
model, and although it is targeted very much at a specific level within the
network, you may find it interesting because it separates the operation and
management of resources and the virtual resources through the use of "abstract"
functional components.

Second, I think that the first paragraph of the Introduction to
draft-jeong-vnrg-virtual-networks-ps is key and could stand being polished...

   The main objectives of virtualization are to create multiple logical
   instances of the resources that can coexist, to separate the uses of
   the logical instances, and to simplify the use of the underlying
   resources by abstracting the characteristics and interacting with the
   resources with limited abstracted knowledge.

These are definitely objectives. But is this a complete set, and are there more
significant objectives?

I think something that is missing is the sharing of the underlying resources.
Perhaps this is implicit in "simplify the use of", but for me an important part
of virtualization is the management (i.e., implementation of policy) of the way
the underlying resources are shared by the logical resources.

Cheers,
Adrian

> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> 
> 	Title           : Virtual Networks Problem Statement
> 	Author(s)       : S. Jeong, D. Colle
> 	Filename        : draft-jeong-vnrg-virtual-networks-ps-00.txt