Re: [Netslices] COMS: What next?

Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> Tue, 08 May 2018 22:35 UTC

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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: Alex Galis <a.galis@ucl.ac.uk>, Adrian Farrel <adrian@olddog.co.uk>
CC: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, "netslices@ietf.org" <netslices@ietf.org>, "ops-ads@ietf.org" <ops-ads@ietf.org>, "netslicing-chairs@ietf.org" <netslicing-chairs@ietf.org>
Thread-Topic: [Netslices] COMS: What next?
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netslices/ddLjnZzlwd6n9d8f7JgeX0MabFE>
Subject: Re: [Netslices] COMS: What next?
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Hi Alex,

> 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 ...)

Actually they do. There is a wide plethora of TE constraints that can be defined/asked for when setting up an ACTN VN. Such constraints are inherited by the L2VPN, L3VPN when bound to the VN. 

BR
Daniele  


> -----Original Message-----
> From: Netslices [mailto:netslices-bounces@ietf.org] On Behalf Of Alex Galis
> Sent: martedì 8 maggio 2018 14:22
> To: Adrian Farrel <adrian@olddog.co.uk>;
> Cc: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>;;
> netslices@ietf.org; ops-ads@ietf.org; netslicing-chairs@ietf.org
> Subject: Re: [Netslices] COMS: What next?
> 
> 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
> >>
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> >>
> >>
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