It is quite hard for me to understand what is itnended due to the
terminology differences. It would be helpful before adoption if there
were better alignment.
Also, clarity as to whether we are discussing the service interface (how
to map the 3GPP needs to the services defined by the IETF network
slicing abstraction) or the de3livery mechanisms (how to use various
IETF technologies to deliver the services defined by the abstractions
and mapped to the 3GPP structures. I would not expect DMM to need to
get into how to map to the mechanisms, as that is an ever-evolving
domain and one that is dealt with by the various domain WGs (TEAS, MPLS,
SPRING, ...)
Yours,
Joel
On 1/5/2021 5:33 PM, Kaippallimalil John wrote:
Joel,
Commenting as an author:
I too agree that the draft should use terminology on transport and slicing that
TEAS defines so that there is consistency. We can either add it in the next
revision/or put place holders now.
Given that, my view is that the work in TEAS and DMM are complementary.
TEAS defines transport and slicing applicable across various domains and
solutions in a more generic fashion, while the DMM draft would provide how to
apply it in a 3GPP context.
There isn't a 1:1 mapping between TEAS /IETF slice offered to the 3GPP
provider, and a slice which the 3GPP provider provisions for its subscriber
(UE).
The focus of the DMM draft is to define how a UE/3GPP transport packet (GTP
packet across F1/W1, N3, N9, for a slice defined between 3GPP provider and
subscriber) should be mapped to various transport network segments (SR, MPLS,
IP, L2 etc).
Regards,
John
-----Original Message-----
From: dmm <[email protected]> On Behalf Of Joel M. Halpern
Sent: Monday, January 04, 2021 6:23 PM
To: [email protected]
Subject: Re: [DMM] Call for adoption of draft-clt-dmm-tn-aware-mobility-08 as a
WG document
Hmmm.
It seems to me that this document ought to align with the ongoing work in the
TEAS working group that is attempting to define terminology and framework (and
then any necessary protocol mechanisms) for IETF network slices. That work is
explicitly intended to support 3GPP end-to-end network slices.
First, the discussion there exlicitly conluded that the term "Transport"
was confusing and misleading. Which is why the work is now called IETF network
slicing.
Second, it seems that we want one IETF framework for this, not two competing
frameworks. Why is DMM doing this separately. It seems to fall squarely into
CCAMP and TEAS. I presume we want a solution that works for 3GPP and works for
other use cases?
Yours,
Joel M. Halpern
On 1/4/2021 7:11 PM, Linda Dunbar wrote:
Support WG adoption.
Linda Dunbar
-------------------
From: *Sri Gundavelli (sgundave)* <[email protected]
<mailto:[email protected]>>
Date: Wed, Dec 30, 2020 at 10:45 AM
Subject: [DMM] Call for adoption of draft-clt-dmm-tn-aware-mobility-08
as a WG document
To: dmm <[email protected] <mailto:[email protected]>>
Folks:
The authors of the document, Transport Network aware Mobility for 5G,
have presented the proposal and the need for standardization in
multiple IETF WG meetings. There have been good amount of discussions
in the mailers and there is some level of interest for the work from
the community. We are therefore considering the adoption of this
document as a DMM WG document, to be moved on Informational Standards track.
*Transport Network aware Mobility for 5G*
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
s.ietf.org%2Fhtml%2Fdraft-clt-dmm-tn-aware-mobility-08&data=04%7C0
1%7Cjohn.kaippallimalil%40futurewei.com%7C5c225b50684e46709e2108d8b110
1135%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637454029863264662%7
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Wx5%2F2nUqkI%3D&reserved=0
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftoo
ls.ietf.org%2Fhtml%2Fdraft-clt-dmm-tn-aware-mobility-08&data=04%7C
01%7Cjohn.kaippallimalil%40futurewei.com%7C5c225b50684e46709e2108d8b11
01135%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637454029863264662%
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7Wx5%2F2nUqkI%3D&reserved=0>
With this background, we would like to ask the WG to provide some
feedback on their interest for this work. Please provide substantial
comments as why this SHOULD be adopted, or why it SHOULD NOT be adopted.
If there is interest, and if there are no other concerns from
AD/IESG/Others, then we may take up this work.
The adoption call will end on 18th of January, 2021.
Regards
DMM WG Chairs
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