Hannu, > The study listed a number of issues why Srv6 is not considered suitable for > the user plane. Please review 3GPP TR 29.892 and take that into account in > the analysis.
That is an interesting reading of TR 29.892. " 8.3 SRv6 user plane protocol (without GTP-U) ... The solution supports all the 3GPP architectural requirements for user plane specified in Rel-16 ... CT4 could not reach consensus on the final assessment and conclusion for the SRv6 user plane protocol (without GTP-U) solution. A technical vote took place during CT4#93 (26-30 August 2019) with the following question and results: Question: Do you want to standardize SRv6 user plane protocol (w/o GTP-U) as described in clause 6.2.2 of TR 29.892? ... It was therefore concluded to not standardize the SRv6 user plane protocol (without GTP-U) solution within the scope of this study (i.e. based on stage 2 requirements specified in Rel-16)." Note that the fact that 3GPP voting decided not to standardize SRv6 as a replacement to GTP-U for the N9 interface in Release 16 does not imply that 3GPP cannot standardize it in a later Release. Also I don't recall any "number of issues why Srv6 is not considered suitable for the user plane" in TR29.892. Thank you, Pablo. -----Original Message----- From: dmm <[email protected]> On Behalf Of Flinck, Hannu (Nokia - FI/Espoo) Sent: domingo, 15 de noviembre de 2020 20:33 To: [email protected] Subject: Re: [DMM] I-D Action: draft-ietf-dmm-5g-uplane-analysis-04.txt Hello authors of the draft-ietf-dmm-5g-uplane-analysis-04.txt draft, As I have said earlier 3GPP CT4 as concluded the user plane study that the draft is indirectly referring through the liaison statements in the intro section. The study listed a number of issues why Srv6 is not considered suitable for the user plane. Please review 3GPP TR 29.892 and take that into account in the analysis. I also would like to note that the Rel 16 is completed and 3GPP is working on Rel 17. Therefore the sentences like " The study description mentions that the study would be based on Release 16 requirement while only Release 15 specifications has been available now. However we believe that to provide adequate information for 3GPP, we need to clearly understand what the current user plane protocol is in Release 15, and architectural requirements for the user plane." is very weird considering that you are addressing completed Release. I cannot understand why and what is the benefit of such. Best regards Hannu -----Original Message----- From: dmm <[email protected]> On Behalf Of [email protected] Sent: Monday, November 2, 2020 5:31 PM To: [email protected] Cc: [email protected] Subject: [DMM] I-D Action: draft-ietf-dmm-5g-uplane-analysis-04.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Distributed Mobility Management WG of the IETF. Title : User Plane Protocol and Architectural Analysis on 3GPP 5G System Authors : Shunsuke Homma Takuya Miyasaka Satoru Matsushima Daniel Voyer Filename : draft-ietf-dmm-5g-uplane-analysis-04.txt Pages : 42 Date : 2020-11-02 Abstract: This document analyzes the mobile user plane protocol and the architecture specified in 3GPP 5G documents. The analysis work is to clarify those specifications, extract protocol and architectural requirements and derive evaluation aspects for user plane protocols on IETF side. This work is corresponding to the User Plane Protocol Study work on 3GPP side. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-dmm-5g-uplane-analysis/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-dmm-5g-uplane-analysis-04 https://datatracker.ietf.org/doc/html/draft-ietf-dmm-5g-uplane-analysis-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-dmm-5g-uplane-analysis-04 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ 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
