Re: [vnrg] FlowVisor : A Network Virtualization Layer

Hello,

Apologies that I was not able to attend the working group meeting, but
thanks for the interest on FlowVisor.  I flipped through the slides at

http://www.ietf.org/proceedings/79/slides/VNRG-0.pdf

and at least from the slides (I'm not sure how the
presentation/discussion about these slides went) I think there might
be a few things that need clarification:

In most of the flowvisor literature, we're very careful to describe
this as "network *slicing*" as opposed to "network virtualization".
The key differences (as brought out in the slides) is that current,
FlowVisor does not support:

- two slices controlling the same virtual address space (e.g.,
10.0.0.0/24) but the flowvisor rewriting them to different physical
addresses
- network topologies that are independent of the physical topology
(currently FlowVisor is restricted to subsets of the physical
topology)

Both of these points are limits of the current implementation, but not
of the design, and my thoughts for the future are to take FV towards
implementing these points.

If anyone is interested in learning more about FlowVisor or its
deployments as part of GENI, please let me know.

Thanks again for the interest,

- Rob
.

On Sun, Nov 7, 2010 at 11:11 AM, Guillaume FORTAINE <gfortaine@live.com> wrote:
>
> Hello,
> For your information :
> -Flowvisor :
> http://www.usenix.org/events/osdi/tech/slides/sherwood.pdf
> http://www.deutsche-telekom-laboratories.de/~robert/flowvisor-osdi10.pdf
> http://www.openflow.org/wk/index.php/FlowVisor
>
> Best Regards,
> Guillaume FORTAINE
>
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