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" <arashmid.akhav...@huawei.com> 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:dmm-boun...@ietf.org] On Behalf Of Sri Gundavelli >> (sgundave) >> Sent: 06 July 2018 13:49 >> To: dmm@ietf.org >> 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" >> <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://datatracker.ietf.org/liaison/1572/ >> >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://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 >> dmm@ietf.org >> https://www.ietf.org/mailman/listinfo/dmm _______________________________________________ dmm mailing list dmm@ietf.org https://www.ietf.org/mailman/listinfo/dmm
