Re: [vnrg] Towards a Virtual Network definition

[Dae Young KIM <dykim at cnu.ac.kr>]

On Thu, Feb 17, 2011 at 9:52 PM, Roland Bless <roland.bless at kit.edu> wrote:

> Are we sure about this? As a experimenter, I'd also be interested in
> virtualization of entities deeper in the layer, that is, virtualization
> of even L2 and L1.

Ok, why not, but IMHO one should distinguish, however, what is your
currently considered layer that is virtualized and what is the
substrate (which might be heterogeneous). And as I said, you may use
also virtualization techniques in the substrate, e.g. VLANs etc.

So, my deeper layer (L2 and L1) might be your substrate..?

Yes, your picture is simpler and cleaner. Yet, I'd like to experiment on my new switching technology, like new kind of circuit switching or hybrid switching.

Where do I get virtualized lambda pipe or virtualized switching fabric so that I can test my wild L1 and L2 ideas in a global scale?

In the 4WARD project the VNet topology description didn't include
hosts or stub nodes since they are dynamically attached and you usually
don't know a priori which hosts will be attached. Furthermore, mobility
of hosts is another reason why it is difficult to include them into
a topology description. So maybe it's better to say: hosts are part
of the VNet (topology) but don't belong to the VNet infrastructure.

Then what about mobile routers or subnets, i.e., MANETs? Subnets themselves are moving around and touch each other in an ad hoc fashion; vehicular network and many other futuristic scenarios.

Shall we say the belong to the VNet infra or such mobile subnets/routers are off the infra?

(So, I'm trying to tease you... :-)).
 

-- 
DY