Folks - Back to this. Any feedback on this? Now that we have waited for some time, I hope we now have a view on this LS. I tend to think we should send a response soon before the July deadline.
Sri On 4/16/18, 9:47 AM, "dmm on behalf of Sri Gundavelli (sgundave)" <[email protected] on behalf of [email protected]> wrote: >Hi Arashmid, > >I was not looking at their July date, but more about exchanging status of >the work and seek feedback. > >I think, we now are on the same page now. > >Sri > > > > >On 4/16/18, 8:37 AM, "Arashmid Akhavain" <[email protected]> >wrote: > >>Thanks Kalyani, >>That makes sense. The wording of the action item though sounded like 3GPP >>was trying to impose a deadline. >>I just want to make sure that wasn't the case cause there is still a lot >>of work to be done. >> >>Arashmid >> >>> -----Original Message----- >>> From: Bogineni, Kalyani [mailto:[email protected]] >>> Sent: 16 April 2018 11:26 >>> To: Arashmid Akhavain <[email protected]>; Sri Gundavelli >>> (sgundave) <[email protected]>; [email protected] >>> Subject: RE: New Liaison Statement, "CP-173160: New Study Item on User >>> Plane Protocol in 5GC" >>> >>> Arashmid - CT4 will start their study in July 2018. So work from IETF >>>can >>> provide input into that study. >>> Kalyani >>> >>> -----Original Message----- >>> From: dmm [mailto:[email protected]] On Behalf Of Arashmid Akhavain >>> Sent: Monday, April 16, 2018 11:21 AM >>> To: Sri Gundavelli (sgundave) <[email protected]>; [email protected] >>> Subject: [E] Re: [DMM] New Liaison Statement, "CP-173160: New Study >>>Item >>> on User Plane Protocol in 5GC" >>> >>> Hi Sri, >>> >>> Thank you for clarification. I never suggested that IETF should single >>>out a >>> particular proposal. On the contrary, I believe DMM should simply >>>conduct >>> the study and provide 3GPP with all different options. 3GPP will decide >>>what >>> to do with the proposals from that point on. As you mentioned there >>>could >>> be several back and forth between the two SDOs. >>> >>> >>> >>> So, while I agree with all points, I am still puzzled by the following >>>statement >>> in 3GPP email. >>> >>> What is the significance of the July 2018 date? >>> >>> >>> >>> ACTION: >>> >>> CT4 respectfully asks IETF DMM to provide any information that may be >>> relevant to the above CT4 >>> >>> work by July 2018. >>> >>> >>> >>> Arashmid >>> >>> >>> >>> > -----Original Message----- >>> >>> > From: Sri Gundavelli (sgundave) [mailto:[email protected]] >>> >>> > Sent: 13 April 2018 19:06 >>> >>> > To: Arashmid Akhavain <[email protected]>; [email protected] >>> >>> > Subject: Re: 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" >>> >>> > <[email protected]> >>> >>> > 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:[email protected]] >>> >>> > >> Sent: 13 April 2018 12:47 >>> >>> > >> To: Arashmid Akhavain <[email protected]>; >>> [email protected] >>> >>> > >> 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" >>> >>> > >> <[email protected]> >>> >>> > >> wrote: >>> >>> > >> >>> >>> > >> >Hi Sri, >>> >>> > >> > >>> >>> > >> >Any idea what the plan is once we pass this information to CT4? >>> >>> > >> > >>> >>> > >> >Arashmid >>> >>> > >> > >>> >>> > >> >> -----Original Message----- >>> >>> > >> >> From: dmm [mailto:[email protected]] On Behalf Of Sri >>> >>> > >> >> Gundavelli >>> >>> > >> >> (sgundave) >>> >>> > >> >> Sent: 12 April 2018 12:47 >>> >>> > >> >> To: [email protected] >>> >>> > >> >> 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" >>> >>> > >> >> <[email protected]> >>> >>> > >> >> 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.org_liaison_1572_&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UH >>> pJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSw >>> XBDiaofh47oilzaXYRYETcBynUdpT&m=6_gBQNSJHswcoK2lgva9AV7k84eHseD4Q >>> zNqK5uOvto&s=xXRtTToU8vKTOLEFzACtwz-yPF-u8xD0SwEKGrWLzR0&e= >>> >>> > >> >> >Please reply by 2018-07-20 >>> >>> > >> >> >From: Satoru Matsushima <[email protected]> >>> >>> > >> >> >To: Sri Gundavelli <[email protected]>,Dapeng Liu >>> >>> > >> >> ><[email protected]> >>> >>> > >> >> >Cc: Dapeng Liu <[email protected]>,Terry Manderson >>> >>> > >> >> ><[email protected]>,Distributed Mobility Management >>> >>> > >> >> >Discussion List <[email protected]>,Sri Gundavelli >>> >>> > >> >> ><[email protected]>,Suresh Krishnan <[email protected]> >>> >>> > Response >>> >>> > >> Contacts: >>> >>> > >> >> >[email protected],[email protected] >>> >>> > >> >> >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_dt_documents_LIAISON_liaison-2D2018-2D04-2D11- >>> 2D&d=DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=Idi >>> SODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m >>> =6_gBQNSJHswcoK2lgva9AV7k84eHseD4QzNqK5uOvto&s=czkSoytVFgbq- >>> fSiLkp3a_BZfo-77tDgQ7B_Rtz-OS8&e= >>> >>> > >> >> >3gp >>> >>> > >> >> >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 >>> >>> > >> >> [email protected] >>> >>> > >> >> https://urldefense.proofpoint.com/v2/url?u=https- >>> 3A__www.ietf.org_mailman_listinfo_dmm&d=DwIGaQ&c=udBTRvFvXC5Dhqg7 >>> UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_Y >>> SwXBDiaofh47oilzaXYRYETcBynUdpT&m=6_gBQNSJHswcoK2lgva9AV7k84eHseD >>> 4QzNqK5uOvto&s=WpxrwHWCBfM48JFHR4c3WUv3URVo59iiK2w4gInp3A4&e= >>> >>> > > >>> >>> >>> >>> _______________________________________________ >>> dmm mailing list >>> [email protected] >>> https://urldefense.proofpoint.com/v2/url?u=https- >>> 3A__www.ietf.org_mailman_listinfo_dmm&d=DwIGaQ&c=udBTRvFvXC5Dhqg7 >>> UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_Y >>> SwXBDiaofh47oilzaXYRYETcBynUdpT&m=6_gBQNSJHswcoK2lgva9AV7k84eHseD >>> 4QzNqK5uOvto&s=WpxrwHWCBfM48JFHR4c3WUv3URVo59iiK2w4gInp3A4&e= > >_______________________________________________ >dmm mailing list >[email protected] >https://www.ietf.org/mailman/listinfo/dmm _______________________________________________ dmm mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmm
