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://datatracker.ietf.org/liaison/1586/ Sri On 7/6/18, 11:25 PM, "dmm on behalf of Sri Gundavelli (sgundave)" <[email protected] on behalf of [email protected]> 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" <[email protected]> >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:[email protected]] On Behalf Of Sri Gundavelli >>> (sgundave) >>> Sent: 06 July 2018 13:49 >>> To: [email protected] >>> 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. >>> >>> http://www.ietf.org/id/draft-bogineni-dmm-optimized-mobile-user-plane- >>> 01.tx >>> t (Individual submission) >>> >>> https://www.ietf.org/internet-drafts/draft-hmm-dmm-5g-uplane-analysis- >>> 00.tx >>> t (Individual submission) >>> >>> >>> Related Documents: >>> >>> >>> https://www.ietf.org/id/draft-ietf-dmm-srv6-mobile-uplane-02.txt >>>(Working >>> group document) >>> >>> >>> Link to DMM Pages: >>> >>> https://datatracker.ietf.org/wg/dmm/documents/ >>> >>> >>> >>> Please let us know if you need any additional information. >>> " >>> >>> ----- >>> >>> >>> >>> >>> >>> >>> >>> >>> 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://datatracker.ietf.org/liaison/1572/ >>> >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://www.ietf.org/lib/dt/documents/LIAISON/liaison-2018-04-11-3gpp-t >>> >sgc >>> >>>>t-ct4-dmm-cp-173160-new-study-item-on-user-plane-protocol-in-5gc-attach >>> >men >>> >t-1.doc >>> > >>> >>> _______________________________________________ >>> dmm mailing list >>> [email protected] >>> https://www.ietf.org/mailman/listinfo/dmm > >_______________________________________________ >dmm mailing list >[email protected] >https://www.ietf.org/mailman/listinfo/dmm _______________________________________________ dmm mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmm
