Kalyani - Sure; Ack!

Sri


On 4/14/18, 7:59 AM, "Bogineni, Kalyani"
<kalyani.bogin...@verizonwireless.com> wrote:

>Sri:
>
>Providing information on the various protocols options in IETF in a
>comprehensive way will be useful not only to
>3GPP but also to ETSI/ITU which is also working on NG protocols as
>pointed out by some folks at IETF #101. Each SDO
>can make use of that information as needed.
>
>Kalyani
>
>-----Original Message-----
>From: dmm [mailto:dmm-boun...@ietf.org] On Behalf Of Sri Gundavelli
>(sgundave)
>Sent: Friday, April 13, 2018 7:06 PM
>To: Arashmid Akhavain <arashmid.akhav...@huawei.com>; dmm@ietf.org
>Subject: [E] Re: [DMM] New Liaison Statement, "CP-173160: New Study Item
>on User Plane Protocol in 5GC"
>
>Hi Arashmid,
>
>
>
>
>
>I am not seeing a relation to the LS Response and the July 2018 deadline
>
>that you are referring to. I think there is some disconnect here. Lets
>
>review what we the chairs are thinking.
>
>
>
>
>
>1. The work in IETF related to User-Plane optimizations will continue for
>
>many months. When there is a LS Request, we will send a LS response. We
>
>will use LS query/response as a means to gather feedback from the SDO
>
>community, and provide an update on the status of all the documents in DMM
>
>at this time. The status includes update on WG documents and individual
>
>I-D’s under discussions.
>
>
>
>2. We are not going with the assumption that there will only be a single
>
>LS request/response for this entire UP Study, but we will keep exchanging
>
>information based on the progress, and whenever we need additional
>
>clarifications. 
>
>
>
>3. There are multiple proposals in IETF. As we have indicated in the past,
>
>we are not going to recommend THE single solution and put it on a platter
>
>for 3GPP consumption, but rather the focus will be on characterization of
>
>each approach that we take up in DMM WG.
>
>
>
>Now, keeping this in mind, if there is a good reason not to send the LS
>
>Response now, delay it by some time, or if we believe there is nothing to
>
>respond, we can discuss and decide to do just that. Hope this makes sense.
>
>
>
>Bottomline, all feedback is welcome!
>
>
>
>
>
>Sri 
>
>
>
>
>
>
>
>
>
>On 4/13/18, 1:35 PM, "Arashmid Akhavain" <arashmid.akhav...@huawei.com>
>
>wrote:
>
>
>
>>Hi Sri,
>
>>Thank you for getting back to us. They listed a few dates there. The
>
>>final deadline is I guess July 2018.
>
>>Are we targeting anything earlier?
>
>>
>
>>Arashmid 
>
>>
>
>>> -----Original Message-----
>
>>> From: Sri Gundavelli (sgundave) [mailto:sgund...@cisco.com]
>
>>> Sent: 13 April 2018 12:47
>
>>> To: Arashmid Akhavain <arashmid.akhav...@huawei.com>; dmm@ietf.org
>
>>> Subject: Re: New Liaison Statement, "CP-173160: New Study Item on User
>
>>> Plane Protocol in 5GC"
>
>>> 
>
>>> Hi Arashmid,
>
>>> 
>
>>> We provide the status of the related work items in DMM, and seek any
>
>>> clarifications on their CT4 work. Key thing from our point of view is
>
>>>to get
>
>>> their feedback on the work we are doing and try to meet their
>>>timelines.
>
>>> 
>
>>> Sri
>
>>> 
>
>>> 
>
>>> On 4/12/18, 10:53 AM, "Arashmid Akhavain"
>
>>> <arashmid.akhav...@huawei.com>
>
>>> wrote:
>
>>> 
>
>>> >Hi Sri,
>
>>> >
>
>>> >Any idea what the plan is once we pass this information to CT4?
>
>>> >
>
>>> >Arashmid
>
>>> >
>
>>> >> -----Original Message-----
>
>>> >> From: dmm [mailto:dmm-boun...@ietf.org] On Behalf Of Sri Gundavelli
>
>>> >> (sgundave)
>
>>> >> Sent: 12 April 2018 12:47
>
>>> >> To: dmm@ietf.org
>
>>> >> Subject: Re: [DMM] New Liaison Statement, "CP-173160: New Study Item
>
>>> >> on User Plane Protocol in 5GC"
>
>>> >>
>
>>> >> Please review and post your comments. Chairs will draft a response
>
>>> >>for WG  review.
>
>>> >>
>
>>> >> Sri
>
>>> >>
>
>>> >>
>
>>> >> On 4/11/18, 11:16 AM, "Liaison Statement Management Tool"
>
>>> >> <l...@ietf.org>
>
>>> >> 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.ietf.o
>>>>rg_liaison_1572_&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ
>>>>&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=H
>>>>zWn613RHnz3I2LqLeSynqPwGlz9DKPBbb8gsskSANw&s=9CURIbNAYuWQYF-7wjuFSRJTLB
>>>>5XX_6f8C3FJHODsRA&e=
>
>>> >> >Please reply by 2018-07-20
>
>>> >> >From: Satoru Matsushima <satoru.matsush...@g.softbank.co.jp>
>
>>> >> >To: Sri Gundavelli <sgund...@cisco.com>,Dapeng Liu
>
>>> >> ><maxpass...@gmail.com>
>
>>> >> >Cc: Dapeng Liu <maxpass...@gmail.com>,Terry Manderson
>
>>> >> ><terry.mander...@icann.org>,Distributed Mobility Management
>
>>> >> >Discussion List <dmm@ietf.org>,Sri Gundavelli
>
>>> >> ><sgund...@cisco.com>,Suresh Krishnan <sur...@kaloom.com> Response
>
>>> Contacts:
>
>>> >> >georg.mayer.hua...@gmx.com,3gppliai...@etsi.org
>
>>> >> >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_lib_d
>>>>t_documents_LIAISON_liaison-2D2018-2D04-2D11-2D3gp&d=DwIGaQ&c=udBTRvFvX
>>>>C5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YS
>>>>wXBDiaofh47oilzaXYRYETcBynUdpT&m=HzWn613RHnz3I2LqLeSynqPwGlz9DKPBbb8gss
>>>>kSANw&s=kIhxr2LLtR-ttoiqAh4-SDHSwwnGObdxK0UvYJ5KCtE&e=
>
>>> >> >p-t
>
>>> >> >sgc
>
>>> >> 
>>>>t-ct4-dmm-cp-173160-new-study-item-on-user-plane-protocol-in-5gc-att
>
>>> >> >ach
>
>>> >> >men
>
>>> >> >t-1.doc
>
>>> >> >
>
>>> >>
>
>>> >> _______________________________________________
>
>>> >> dmm mailing list
>
>>> >> dmm@ietf.org
>
>>> >> 
>>>https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailma
>>>n_listinfo_dmm&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=
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>>>13RHnz3I2LqLeSynqPwGlz9DKPBbb8gsskSANw&s=oMHUVaNvmV9Z_mLgotE-AUxiyp6sigD
>>>64AJ0f67ndB4&e=
>
>>
>
>
>
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