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Re: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13

David Allan I <david.i.allan@ericsson.com> Sat, 24 July 2021 16:14 UTC

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From: David Allan I <david.i.allan@ericsson.com>
To: Uma Chunduri <umac.ietf@gmail.com>
CC: "dmm@ietf.org" <dmm@ietf.org>
Thread-Topic: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13
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Date: Sat, 24 Jul 2021 16:14:43 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dmm/b5kjO2xHkS7xsGJvwqH_Q3-E9tU>
Subject: Re: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13
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HI Again:

One quick comment in line:

Cheers
Dave

From: Uma Chunduri <umac.ietf@gmail.com>
Sent: Friday, July 23, 2021 4:52 PM
To: David Allan I <david.i.allan@ericsson.com>
Cc: dmm@ietf.org
Subject: Re: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13

Dear Dave,

I got what you are saying.

>The sorts of features we are seeing in the larger 3GPP picture AFAIK are more recent additions for URLLC, CIoT etc.
>So picking and choosing based on convenience is not an option; the problem space is not a matter of choosing what to support,
>but in replicating the functionality exists and having similar extensibility.

In this particular case, I am afraid we can even take that kind of undertaking to create a complete "Stunt Double" as you put it.  I also believe this is not under the purview of IETF and inevitably we intervene with their control plane procedures to create this kind of framework.

I still believe we ought to develop value addition functionalities in the transport network layer, applicable to these deployments which brings a better E2E service. At the end of the day neither a packet traversing the network doesn't know which SDO owns this nor the end user consuming the service.

DA> I’d consider the “stunt double” capability in the user plane to be table stakes, the “value add” beyond that point is the “justify your existence” moment 😊


This is a generic comment and I am not implying to any particular work being done here.


BR!
--
Uma C.

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