Hi Uma et al, Thank you for all the work on this document.
As described in the abstract this document defines two things: In section 2 you describe a framework to map slices in mobile systems to slices in the transport network; while in section 3 you describe how a new transport network underlay routing mechanism, Preferred Path Routing, can be used in combination with this framework. PPR (draft-chunduri-lsr-isis-preferred-path-routing and draft-chunduri-lsr-ospf-preferred-path-routing) was last presented in LSR WG at IETF102 if I recall correctly. The WG highlighted issues with regards to the scalability of the proposal. https://datatracker.ietf.org/doc/minutes-102-lsr/ Further discussion took place at the LSR mailer and those scalability concerns on PPR remain unaddressed. https://mailarchive.ietf.org/arch/msg/lsr/6TzBBkmq4hQkiqyBeuN7MMOtMs0/ In my opinion it would be good to either address the LSR scalability concerns on PPR, or perhaps move all PPR content (Section 3 and related appendix) into a separate document. Given that PPR is unneeded to define the framework -core of the ID-; and both sections seem orthogonal, I believe splitting the document would be appropriate. Thank you, Pablo. From: dmm <dmm-boun...@ietf.org> On Behalf Of Sri Gundavelli (sgundave) Sent: viernes, 16 de octubre de 2020 20:50 To: Uma Chunduri <umac.i...@gmail.com>; dmm <dmm@ietf.org> Cc: Luis M. Contreras <luismiguel.contrerasmuri...@telefonica.com>; Richard Li <richard...@futurewei.com>; Jeff Tantsura <jefftant.i...@gmail.com>; Praveen Muley <praveen.mu...@nokia.com>; Sridhar Bhaskaran <sridh...@altiostar.com> Subject: Re: [DMM] New Version Notification for draft-clt-dmm-tn-aware-mobility-07.txt WG – Please provide your inputs on this document. Authors have presented this earlier and like to get some feedback. Sri From: dmm <dmm-boun...@ietf.org<mailto:dmm-boun...@ietf.org>> on behalf of Uma Chunduri <umac.i...@gmail.com<mailto:umac.i...@gmail.com>> Date: Friday, October 16, 2020 at 11:42 AM To: dmm <dmm@ietf.org<mailto:dmm@ietf.org>> Cc: "Luis M. Contreras" <luismiguel.contrerasmuri...@telefonica.com<mailto:luismiguel.contrerasmuri...@telefonica.com>>, Praveen Muley <praveen.mu...@nokia.com<mailto:praveen.mu...@nokia.com>>, Jeff Tantsura <jefftant.i...@gmail.com<mailto:jefftant.i...@gmail.com>>, Richard Li <richard...@futurewei.com<mailto:richard...@futurewei.com>>, Sridhar Bhaskaran <sridh...@altiostar.com<mailto:sridh...@altiostar.com>> Subject: Re: [DMM] New Version Notification for draft-clt-dmm-tn-aware-mobility-07.txt Dear DMM experts, This version is a refresh but all comments received (offline and during the presentation at IETF106) were addressed. Any further comments/suggestions are most welcome. -- Uma C. On Mon, Sep 28, 2020 at 4:44 PM <internet-dra...@ietf.org<mailto:internet-dra...@ietf.org>> wrote: A new version of I-D, draft-clt-dmm-tn-aware-mobility-07.txt has been successfully submitted by Uma Chunduri and posted to the IETF repository. Name: draft-clt-dmm-tn-aware-mobility Revision: 07 Title: Transport Network aware Mobility for 5G Document date: 2020-09-28 Group: Individual Submission Pages: 28 URL: https://www.ietf.org/id/draft-clt-dmm-tn-aware-mobility-07.txt Status: https://datatracker.ietf.org/doc/draft-clt-dmm-tn-aware-mobility/ Htmlized: https://datatracker.ietf.org/doc/html/draft-clt-dmm-tn-aware-mobility Htmlized: https://tools.ietf.org/html/draft-clt-dmm-tn-aware-mobility-07 Diff: https://www.ietf.org/rfcdiff?url2=draft-clt-dmm-tn-aware-mobility-07 Abstract: This document specifies a framework and mapping from slices in 5G mobile systems to transport slices in IP and Layer 2 transport networks. Slices in 5G systems are characterized by latency bounds, reservation guarantees, jitter, data rates, availability, mobility speed, usage density, criticality and priority should be mapped to transport slice characteristics that include bandwidth, latency and criteria such as isolation, directionality and disjoint routes. Mobile slice criteria need to be mapped to the appropriate transport slice and capabilities offered in backhaul, midhaul and fronthaul connectivity segments between radio side network functions and user plane function (gateway). This document describes how mobile network functions map its slice criteria to identifiers in IP packets that transport segments use to grant transport layer services. This is based on mapping between mobile and IP transport underlays (IPv6, MPLS, IPv4, Segment Routing). Applicability of this framework and a new transport network underlay routing mechanism, Preferred Path Routing (PPR), which brings slice properties and works with any underlying transport (L2, IPv4, SR and MPLS) is also discussed. 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<http://tools.ietf.org>. The IETF Secretariat
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