Re: [DMM] New Liaison Statement, "CP-173160: New Study Item on User Plane Protocol in 5GC"

["Sri Gundavelli (sgundave)" <[e-mail]>]

Hi Kalyani,

Thanks for the feedback.

Looking at the LS, I see the deadline as July 20th. Is that a mistake?
Unfortunately, we were going by the date listed in the LS.

https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_l
iaison_1572_&d=DwIFAg&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSO
Dh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=DpwNaCrfXd9EI
fo9xBxDQO1_hSmvZiI6uiV6fYe3rYU&s=4575vR5rygFrP_tvoH2z0iDv1njzued0M1dNS0wbTT
s&e=

Deadline: 2018-07-20 Action Needed


I do not know if we will be able to close this by 8th July.



Sri






On 7/7/18, 12:18 PM, "Bogineni, Kalyani"
<[e-mail]> wrote:

>Sri:
>
>The LS response is fine as it reflects the status of the work in IETF.
>
>I am not sure when you plan to send the LS response since you requested
>feedback by July 13th.
>
>FYI, The next CT4 meeting is from July 9-13th as seen from the attached
>meeting Invitation.
>
>Attached is the meeting agenda - Input LSs will be processed on Monday
>July 9th from 9:00 - 11:30 AM.
>
>Regards, 
>Kalyani
>
>
>-----Original Message-----
>From: dmm [mailto:[e-mail]] On Behalf Of Sri Gundavelli
>(sgundave)
>Sent: Saturday, July 7, 2018 2:00 PM
>To: Arashmid Akhavain <[e-mail]>; [e-mail]
>Subject: [E] Re: [DMM] New Liaison Statement, "CP-173160: New Study Item
>on User Plane Protocol in 5GC"
>
>Folks - Here is the response in pending state. We are holding for WG
>feedback. 
>
>If you have any objections too this, please let us know by 13th of July,
>2018.
>
>https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_
>liaison_1586_&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=Idi
>SODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=qxXTZYI7pM
>D_45zlLf4jtPJrGH6H0ygd_lgk8PE1o24&s=77-_DB88Sb27VyXuBt7_1OKS1QMBOTs_A_Ln-p
>GFsYc&e=
>
>
>Sri
>
>
>
>
>
>On 7/6/18, 11:25 PM, "dmm on behalf of Sri Gundavelli (sgundave)"
><[e-mail] on behalf of sgundave=[e-mail]>
>wrote:
>
>>Hi Arashmid,
>>
>>Thanks for the feedback.
>>
>>I have added a link to the DMM WG pages and it has links to all the DMM
>>documents. I think that should be OK, we don’t have to explicitly list
>>out every single I-D at this stage. As we move forward and based on WG
>>discussions/progress, we can provide more detailed feedback on each
>>document. I suggest we keep this simple for now.
>>
>>
>>
>>> So, what happens next? We wait for their reply?
>>
>>This is just a response to the LS; more an information exchange on the
>>status/progress.
>>
>>
>>
>>Regards
>>Sri
>>
>>
>>
>>
>>On 7/6/18, 1:56 PM, "Arashmid Akhavain" <[e-mail]>
>>wrote:
>>
>>>Hi Sri,
>>>
>>>We might also want to add draft-camarillo-dmm-srv6-mobile-pocs-00
>>>under "Related Documents".
>>>
>>>Also, we might want to say something like:
>>>"Although we will NOT pick a particular approach, we will be ready to
>>>provide further assistance to 3GPP regarding the technical details of
>>>different candidates."
>>>
>>>So, what happens next? We wait for their reply?
>>>
>>>Cheers,
>>>Arashmid
>>>
>>>> -----Original Message-----
>>>> From: dmm [mailto:[e-mail]] On Behalf Of Sri Gundavelli
>>>> (sgundave)
>>>> Sent: 06 July 2018 13:49
>>>> To: [e-mail]
>>>> Subject: Re: [DMM] New Liaison Statement, "CP-173160: New Study Item
>>>> on User Plane Protocol in 5GC"
>>>> 
>>>> We plan to send the following response to 3GPP CT4.  If you have any
>>>>quick  comments/corrections/suggestions, please let us know in a day.
>>>> 
>>>> 
>>>> 
>>>> ³
>>>> Thank you for your Liaison request (Reference: CP-173160) and for
>>>>sharing  the information on the status of the CT4 study item on
>>>>user-plane protocol  for 5GC. The IETF DMM working group wants to
>>>>acknowledge your request  and want to share the following update.
>>>> 
>>>> IETF DMM working is currently reviewing various proposals on
>>>>approaches  for realizing optimizations in user-plane for mobile
>>>>packet core. These  proposals include protocol specifications based
>>>>on new/existing protocols  and proposals covering
>>>>requirements/analysis/comparison of various  approaches. At this
>>>>point of time, some of these documents are working  group documents
>>>>and some are individual submissions and yet to be  adopted as working
>>>>group documents.  Based on the working group interest,  feedback
>>>>charter-scope, the working group may choose to adopt some of  these
>>>>work items as working group documents and at that time will seek
>>>>feedback from 3GPP.
>>>> 
>>>> We also would like to state that the DMM working group will not be
>>>>in a  position to pick a single approach/solution as THE approach for
>>>>user-plane  optimization. Most likely the working group may
>>>>standardize more than one  approach, but will characterize each of
>>>>these approaches based on its  technical capabilities and
>>>>limitations. This approach would be consistent with  the approach
>>>>that IETF took with IPv6 transitioning work, where IETF  standardized
>>>>multiple approaches including DSLite, NAT64, Gi-DSLite and  other
>>>>approaches.
>>>> 
>>>> Finally, IETF would like to point 3GPP to the following documents
>>>> under consideration.
>>>> 
>>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ietf.org_id_
>>>> draft-2Dbogineni-2Ddmm-2Doptimized-2Dmobile-2Duser-2Dplane-2D&d=DwIG
>>>> aQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGg
>>>> d9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=qxXTZYI7pMD_45zlLf
>>>> 4jtPJrGH6H0ygd_lgk8PE1o24&s=PZVdEP1rEzF40-JWBzGaYGXXFIA-J6E8VNrtCU-L
>>>> Xeo&e=
>>>> 01.tx
>>>> t (Individual submission)
>>>> 
>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_in
>>>> ternet-2Ddrafts_draft-2Dhmm-2Ddmm-2D5g-2Duplane-2Danalysis-2D&d=DwIG
>>>> aQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGg
>>>> d9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=qxXTZYI7pMD_45zlLf
>>>> 4jtPJrGH6H0ygd_lgk8PE1o24&s=RFXqAJd7ktCOVPOxjgWrfpkrKG_wABrZA2gvpH6P
>>>> 22Y&e=
>>>> 00.tx
>>>> t (Individual submission)
>>>> 
>>>> 
>>>> Related Documents:
>>>> 
>>>> 
>>>> 
>>>>https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_id_
>>>>draft-2Dietf-2Ddmm-2Dsrv6-2Dmobile-2Duplane-2D02.txt&d=DwIGaQ&c=udBTR
>>>>vFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKg
>>>>Kcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=qxXTZYI7pMD_45zlLf4jtPJrGH6H0y
>>>>gd_lgk8PE1o24&s=PSzx-NfxacXnnIu0yifXWiDz7-t6PqPY-paV4DNwxOw&e=
>>>>(Working
>>>> group document)
>>>> 
>>>> 
>>>> Link to DMM Pages:
>>>> 
>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.iet
>>>> f.org_wg_dmm_documents_&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb
>>>> 6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYE
>>>> TcBynUdpT&m=qxXTZYI7pMD_45zlLf4jtPJrGH6H0ygd_lgk8PE1o24&s=f3434N55x1
>>>> rC9NVSdFiUTjzhwsBJPkdtpy8a_vIRVcQ&e=
>>>> 
>>>> 
>>>> 
>>>> Please let us know if you need any additional information.
>>>> "
>>>> 
>>>> -----
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On 4/11/18, 11:16 AM, "Liaison Statement Management Tool"
>>>> <[e-mail]>
>>>> wrote:
>>>> 
>>>> >Title: CP-173160: New Study Item on User Plane Protocol in 5GC
>>>> >Submission Date: 2018-04-11 URL of the IETF Web page:
>>>> >https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ie
>>>> >tf.org_liaison_1572_&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6_
>>>> >_0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYET
>>>> >cBynUdpT&m=qxXTZYI7pMD_45zlLf4jtPJrGH6H0ygd_lgk8PE1o24&s=Y5tfX_Bnem
>>>> >dhocQwO2YoxurotS34WWP7G_RHmWTrl-4&e=
>>>> >Please reply by 2018-07-20
>>>> >From: Satoru Matsushima <[e-mail]>
>>>> >To: Sri Gundavelli <[e-mail]>,Dapeng Liu
>>>> ><[e-mail]>
>>>> >Cc: Dapeng Liu <[e-mail]>,Terry Manderson
>>>> ><[e-mail]>,Distributed Mobility Management
>>>> Discussion
>>>> >List <[e-mail]>,Sri Gundavelli <[e-mail]>,Suresh
>>>> Krishnan
>>>> ><[e-mail]> Response Contacts:
>>>> >[e-mail],[e-mail]
>>>> >Technical Contacts:
>>>> >Purpose: For action
>>>> >
>>>> >Body: 1. Overall Description:
>>>> >3GPP working group of CT4 (Core and Terminal) would like to inform
>>>> >the IETF that CT4 has initiated a study item on user plane protocol
>>>> >in 5GC for Release-16 of 5G phase 2 (see CP-173160).
>>>> >
>>>> >Based on the outcome from the IETF / 3GPP Coordination meeting at
>>>> >IETF#100, 3GPP CT4 got aware that IETF DMM WG is currently working
>>>> >on
>>>>a
>>>> >possible candidate protocol for the 3GPP 5G user plane protocol.
>>>> >
>>>> >3GPP CT4 wants to emphasize that currently there is no related
>>>> >evaluation ongoing in 3GPP. Nevertheless, a study item was approved
>>>>for
>>>> >such a study to start in the second half of 2018. The study will
>>>> >evaluate between existing solutions within 3GPP and other
>>>> >protocols, based on the Release
>>>> >16 stage 2 (system architecture) requirements.
>>>> >
>>>> >3GPP CT4 would like to point IETF DMM to the following
>>>> >specifications on GTP-U. The Release 16 stage 2 requirements are
>>>> >not yet known but it is worth looking at latest GTP-U spec which
>>>> >will be evaluated through the study as the existing protocol.
>>>> >
>>>> >€	[1] 3GPP TS 29.281 (V15.1.0): GPRS Tunnelling Protocol User Plane
>>>> >(GTPv1-U)
>>>> >
>>>> >
>>>> >Following technical report provides information of how 3GPP
>>>> >considered GTP-U apply to user plane of 5G_ph1:
>>>> >
>>>> >€	[2] 3GPP TR 29.891 (V15.0.0): 5G System ­ Phase 1; CT4 Aspects
>>>> >
>>>> >
>>>> >Furthermore, 3GPP would like to give the following general guidance
>>>> >to IETF DMM, regarding user plane transport within 3GPP networks.
>>>> >These are technical specifications that include also the necessary
>>>> >information to understand which architectural, QoS,
>>>> >security-related and high-level requirements GTP-U currently
>>>>complies to within 5G_ph1.
>>>> >
>>>> >€	[3] 3GPP TS 23.501 (V15.0.0): System Architecture for the 5G System
>>>> >€	[4] 3GPP TS 23.502 (V15.0.0): Procedures for the 5G System
>>>> >€	[5] 3GPP TS 23.503 (V15.0.0): Policy and Charging Framework for the
>>>> 5G
>>>> >System
>>>> >€	[6] 3GPP TS 33.501 (V0.6.0): Security Architecture (work in
>>>>progress)
>>>> >
>>>> >2. Actions:
>>>> >To IETF DMM:
>>>> >ACTION: 	CT4 respectfully asks IETF DMM to provide any information
>>>> that
>>>> >may be relevant to the above CT4 work by July 2018.
>>>> >
>>>> >
>>>> >3. Date of Next CT and CT4 Meetings:
>>>> >CT4#83	26th Feb ­ 2nd Mar 2018	Montreal, CAN
>>>> >CT#79	19th ­ 20th Mar 2018	Chennai, India
>>>> >CT4#84	16th ­ 20th April 2018	Kunming, China
>>>> >CT4#85	21st ­ 25th May 2018	Osaka, Japan
>>>> >CT#80	11th ­ 12th June 2018	La Jolla, USA
>>>> >CT4#85-bis	  9th ­13th July 2018	TBD, France
>>>> >CT4#86	20st ­ 24th Aug 2018	TBD, USA
>>>> >Attachments:
>>>> >
>>>> >    CP-180116
>>>> >
>>>> 
>>>>>https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_li
>>>>>b_dt_documents_LIAISON_liaison-2D2018-2D04-2D11-2D3gpp-2Dt&d=DwIGaQ&
>>>>>c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9M
>>>>>znLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=qxXTZYI7pMD_45zlLf4jt
>>>>>PJrGH6H0ygd_lgk8PE1o24&s=eFXZksriT8I7oyQ2VdYY02soc1SdM7QLI7EJK4O8mdU
>>>>>&e=
>>>> >sgc
>>>> 
>>>>>t-ct4-dmm-cp-173160-new-study-item-on-user-plane-protocol-in-5gc-att
>>>>>ach
>>>> >men
>>>> >t-1.doc
>>>> >
>>>> 
>>>> _______________________________________________
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>>>> omBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcByn
>>>> UdpT&m=qxXTZYI7pMD_45zlLf4jtPJrGH6H0ygd_lgk8PE1o24&s=YrIr5CHJMjB2j4e
>>>> bFkCLy_9NwWmV0lQpHiSgLUeFJTI&e=
>>
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