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
