Re: [Teas] Decision point on scope of draft-ietf-teas-ietf-network-slices

[Igor Bryskin <[e-mail]>]

Daniele,
I agree with you. This was my exact argument all along. We don't want to confuse supporting slicing with performing/ realizing  slicing.
I am hoping to hear from the framework authors. 
My additional concern is WRT the top- down approach, which, as Adrian and Gyan on many occasions correctly described as essential to the network slicing.
Our experience tells us that it is notoriously complex to directly involve transport layers in top down network control, especially when top is wider than bottom. For example, we didn't go very far with top down two layer traffic engineering even in OTN/Och networks, arguably the most natural environment for such an approach. The main reason for that is that it proved to be impractical ( to say the least) to reconfigure lower layer based solely on request in a higher layer. 
Cheers,Igor

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  On Mon, Mar 7, 2022 at 1:03 PM, Igor Bryskin<[e-mail]> wrote:   Daniele,
We all agreed that OTN  does not bring anything new into 5G that, for example,  was not happening  in 4G. OTN slicing work is motivated in some way, at least, because NS framework stipulates that the framework  is not limited to 5G. In fact, it seems to be not limited to anything (application -wise or layering -wise) to a point that it is not really clear what could not be considered a network slice.
However,  If the framework was focused on 5G (ideallt going even further and stating  that said 5G style network slicing happenning in IP layer only, which I believe is the case) ,  OTn slicing would have nothing to do with the framework (and the term  slicing) and would have to rely on its own merits ( which,  as you mentioned, you have doubts about yourself) and also  explain why it coincides in time with NS work triggered and inspired entirely by 5G.
Cheers,Igor

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  On Mon, Mar 7, 2022 at 12:01 PM, Daniele Ceccarelli<daniele.ceccarelli=[e-mail]> wrote:   _______________________________________________
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