Re: [Netslices] COMS: What next?

Alex Galis <a.galis@ucl.ac.uk> Tue, 08 May 2018 12:21 UTC

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From: Alex Galis <a.galis@ucl.ac.uk>
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Date: Tue, 8 May 2018 13:21:37 +0100
Cc: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, ops-ads@ietf.org, netslices@ietf.org, netslicing-chairs@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netslices/Dfx085sR3-oahFOLa3wXOzVGtMY>
Subject: Re: [Netslices] COMS: What next?
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Hi Adrian

On one hand you statement that L2SM, L3SM and ACTN are "primitive" forms of slicing may be correct if you define what a primitive is and how could be used and managed.

On the other hand  L2SM, L3SM and ACTN/ virtual nets would be consider as slices or slice enablers if they can provide dynamic resource partition supporting a very large variety of service requirements per partition ( i.e. range from low latency service to high bandwidth service to defined QoS based services to ...)

In my view L2SM, L3SM, ACTN  and other L2/L3 technologies (i.e. VPN, IPV6 segment routing, etc) would be useful technology in the activation in a domain of a network slice but they are not necessarily ‘slices’.

As presented in London the COMS related work activities cannot be just reduced to L2SM, L3SM, ACTN or to operations  (i.e. operations on IPV6) on existing networking systems.

I support Sasha’s statement that "network slices as service (NSaaS) therefore looks like a reasonable objective for a dedicated IETF WG”

Best Regrards
Alex



> On 8 May 2018, at 9:51 AM, Adrian Farrel <adrian@olddog.co.uk>; wrote:
> 
> Yes, and without pretending to speak for the whole room in London, there were
> some observations made that L2SM and L3SM were "primitive" forms of slicing, and
> that ACTN (see TEAS WG) constructs virtual networks over underlying transport
> networks and is also slicing.
> 
> Some people, thus, are in agreement with you. Other,  I think, believe that the
> problem space is larger and more complex.
> 
> A
> 
>> -----Original Message-----
>> From: Alexander Vainshtein [mailto:Alexander.Vainshtein@ecitele.com]
>> Sent: 08 May 2018 09:16
>> To: adrian@olddog.co.uk
>> Cc: ops-ads@ietf.org; netslices@ietf.org; netslicing-chairs@ietf.org
>> Subject: RE: [Netslices] COMS: What next?
>> 
>> Adrian,
>> Lots of thanks for a prompt response and sincere apologies for sending out an
>> incomplete email.
>> 
>> The completion of the sentence that has puzzled you should be something like:
>> 
>> " My personal impression from reading the drafts and looking at the
>> presentation at the session is that there is certain similarity between the
> Service
>> Delivery Interface (SDI) mentioned there and the YANG data models for
>> L3/L2VPN services. Developing a YANG data model for network slices as services
>> (NSaaS) therefore looks like a reasonable objective for a dedicated IETF WG to
>> me".
>> 
>> Hopefully this clarifies my original question.
>> 
>> Regards,
>> Sasha
>> 
>> Office: +972-39266302
>> Cell:      +972-549266302
>> Email:   Alexander.Vainshtein@ecitele.com
>> 
>> -----Original Message-----
>> From: Adrian Farrel [mailto:adrian@olddog.co.uk]
>> Sent: Monday, May 7, 2018 1:32 AM
>> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>;; netslicing-
>> chairs@ietf.org
>> Cc: ops-ads@ietf.org; netslices@ietf.org
>> Subject: RE: [Netslices] COMS: What next?
>> 
>> Hi Sasha,
>> 
>>> My colleagues and I wonder what (if any) are the expected next steps
>>> of the COMS BOF.
>>> The status of this BOF at IETF-101 was Non-WG-forming.
>> 
>> Right. The objectives were to get more focus and find answers to the questions
>> that the ADs had posed.
>> 
>>> My personal impression from reading the drafts and looking at the
>>> presentation at the session is that there is
>> 
>> Oooh, you do know how to tantalise your audience, don't you?
>> 
>> Or possibly this is a competition and you will be awarding prizes for the best
>> completion of you sentence. ;-)
>> 
>>> Are there any plans to hold yet another session at IETF-102 in Montreal?
>>> To progress this BOF to a WG? Or simply to pass this subject to some
>>> other SDO?
>> 
>> You're asking the question on the right mailing list. But I have heard no
> plans and
>> have not seen anything recent in the IETF that seems like progress.
>> 
>> Maybe others will have something to say.
>> 
>> Cheers,
>> Adrian
>> --
>> Support an author and your imagination
>> Tales from the Wood - Eighteen new fairy tales More Tales from the Wood -
>> Eighteen MORE new fairy tales Tales from Beyond the Wood - A bumper
>> collection of twenty-two new tales
>> http://webdefence.global.blackspider.com/urlwrap/?q=AXicHcqxDcIwEAXQ31Gz
>> iG2RKAQq6GhoQ0Fl4otiybGj8wmHPVgIiRmYB0H93nqF6wd4vgEOD9PeVOa7mqw
>> PfYrCKag-TSh1c-
>> 7kcjLVZldtcQy02OiIVWd9zKOQjwfqvVCg_x9F5rzXupSiBiJnmaz7iZ45DT5Q1m1jag1
>> geQFflGksFQ&Z
>> http://www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924
>> Or buy from me direct.
>> 
>> 
>> 
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