Re: [Teas-ns-dt] Comment to definitions draft in today's call -- logical vs abstract vs virtual

[Eric Gray <[e-mail]>]

This is a fortunate case, where the IETF has not chosen to redefine a well known English word to give it an IETF spin.

That - to no extent - means that we cannot use "logical" in an IETF context.

In my opinion, the meaning of logical is to be explicitly inclusive of both "virtual" and "physical."

While a "virtual network" or "virtual interface" is (nearly always) assumed to be distinct from "real" or "physical" networks or interfaces (in most cases, the distinction is made explicit by the addition of information that must be included to make the "virtual" version work), there is no such distinction that necessarily applies in using "logical."

--
Eric

From: Teas-ns-dt <[e-mail]> On Behalf Of Belotti, Sergio (Nokia - IT/Vimercate)
Sent: Friday, March 6, 2020 2:54 AM
To: LUIS MIGUEL CONTRERAS MURILLO <[e-mail]>om>; [e-mail]
Subject: Re: [Teas-ns-dt] Comment to definitions draft in today's call -- logical vs abstract vs virtual

Hi Luis,
Thanks, I got your point, mine is the intent to use "technical" word with IETF reference. What does it mean "logical" network topology ,well, everybody can have different opinion, it is just an English word , with no technical reference at least for my knowledge in TEAS.
I open to learn about that.

Cheers
Sergio

From: LUIS MIGUEL CONTRERAS MURILLO <[e-mail]<mailto:[e-mail]>>
Sent: Thursday, March 5, 2020 7:54 PM
To: Belotti, Sergio (Nokia - IT/Vimercate) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: RE: [Teas-ns-dt] Comment to definitions draft in today's call -- logical vs abstract vs virtual

Hi Sergio,

I agree with you. I'm just saying that "logical" serves for the same purpose, with the advantage maybe of avoiding that external people to IETF could mix things.

And be sure that when talking about slices (including transport slices) there will be people external to IETF looking at that.

That's only my point.

Best regards

Luis


De: Belotti, Sergio (Nokia - IT/Vimercate) <[e-mail]<mailto:[e-mail]>>
Enviado el: jueves, 5 de marzo de 2020 18:35
Para: LUIS MIGUEL CONTRERAS MURILLO <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Asunto: RE: [Teas-ns-dt] Comment to definitions draft in today's call -- logical vs abstract vs virtual

I think that logical (or even abstract) is more comprehensive since virtual reminds to some kind of virtualization of the underlying resources, but a slice could naturally involve (dedicated) physical resources. So that is why I'm inclined to use logical as a more generic term.

Virtualization has nothing to do with "select" only physical resources but instead is related to select underlying resources (physical or abstract) in the prospective to a particular customer, application or service.
If this was your problem with virtual , it is not a problem.

Regards
SErgio

From: Teas-ns-dt <[e-mail]<mailto:[e-mail]>> On Behalf Of LUIS MIGUEL CONTRERAS MURILLO
Sent: Thursday, March 5, 2020 6:12 PM
To: [e-mail]<mailto:[e-mail]>
Subject: [Teas-ns-dt] Comment to definitions draft in today's call -- logical vs abstract vs virtual

Hi all,

Apologies, I experienced problems in the call today, not being able for me to speak up (even I lost part of the discussions, apologies again).

I wrote my preference in the chat, I think you couldn't echoed.

So respect to the discussion of preference for logical  vs abstract vs virtual, I think that logical (or even abstract) is more comprehensive since virtual reminds to some kind of virtualization of the underlying resources, but a slice could naturally involve (dedicated) physical resources. So that is why I'm inclined to use logical as a more generic term.

Note that in the operators' vocabulary today "virtual" has further connotations (exceeding the transport part), so can be an overloaded term in some end-to-end scenarios.

Best regards

Luis


__________________________________
Luis M. Contreras

Technology and Planning
Transport, IP and Interconnection Networks
Telefónica I+D / Global CTIO unit / Telefónica

Distrito Telefónica, Edificio Sur 3, Planta 3
28050 Madrid
España / Spain

Skype (Lync): [phone]
Mobile: [phone]
[e-mail]<mailto:[e-mail]>



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Este mensaje y sus adjuntos se dirigen exclusivamente a su destinatario, puede contener información privilegiada o confidencial y es para uso exclusivo de la persona o entidad de destino. Si no es usted. el destinatario indicado, queda notificado de que la lectura, utilización, divulgación y/o copia sin autorización puede estar prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, le rogamos que nos lo comunique inmediatamente por esta misma vía y proceda a su destrucción.

The information contained in this transmission is privileged and confidential information intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this transmission in error, do not read it. Please immediately reply to the sender that you have received this communication in error and then delete it.

Esta mensagem e seus anexos se dirigem exclusivamente ao seu destinatário, pode conter informação privilegiada ou confidencial e é para uso exclusivo da pessoa ou entidade de destino. Se não é vossa senhoria o destinatário indicado, fica notificado de que a leitura, utilização, divulgação e/ou cópia sem autorização pode estar proibida em virtude da legislação vigente. Se recebeu esta mensagem por erro, rogamos-lhe que nos o comunique imediatamente por esta mesma via e proceda a sua destruição