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Re: Has virtualization become obsolete in 5G?


From: Etienne-Victor Depasquale <edepa () ieee org>
Date: Tue, 4 Aug 2020 17:40:51 +0200


PS. All of the current attempts to turn IP statistical multiplexing into
network slicing or deterministic networks are far from scale or practical
deployments (IMO).


Wow, that's quite a statement (I'm not disparaging, just surprised).

Etienne

On Tue, Aug 4, 2020 at 5:37 PM Robert Raszuk <robert () raszuk net> wrote:


  I doubt we want to move away from those concepts.

I think we all do - except technology is not there yet. Just imagine if
over a single piece of fiber you will get infinite bandwidth delivered over
unlimited modulation frequency spectrum  ...

IMHO till real true optical switching is a commodity we are stuck with
statistical multiplexing.

But optimistically I think time will come when you will be able to
setup end to end optical paths in true any to any fashion with real end to
end resource guarantees. Then next generations will be looking at current
routers like we look today at strowger telephone switches  :)

Cheers,
R.

PS. All of the current attempts to turn IP statistical multiplexing into
network slicing or deterministic networks are far from scale or practical
deployments (IMO).



On Tue, Aug 4, 2020 at 5:18 PM Mark Tinka <mark.tinka () seacom com> wrote:



On 4/Aug/20 16:56, Etienne-Victor Depasquale wrote:

The survey I pointed to suggests that hard slicing is the least
preferred option among survey respondents.

That's because the very nature of DWDM, Ethernet, IP, MPLS and VM's is
all about re-using the same infrastructure over and over again for it to
make commercial sense.

I doubt we want to move away from those concepts.

We rely on many services today delivered over the public Internet that
virtualize and still perform. Even good ol' video streaming, which was
predicted to break the Internet.

So not sure what applications are driving the demand for "greater QoS"
on 5G networks, in real terms.

Mark.



-- 
Ing. Etienne-Victor Depasquale
Assistant Lecturer
Department of Communications & Computer Engineering
Faculty of Information & Communication Technology
University of Malta
Web. https://www.um.edu.mt/profile/etiennedepasquale

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