Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt
Jonas Mårtensson <jonas.martensson@ri.se> Mon, 22 October 2018 11:26 UTC
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From: Jonas Mårtensson <jonas.martensson@ri.se>
To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>, "Beller, Dieter (Nokia - DE/Stuttgart)" <dieter.beller@nokia.com>, Leeyoung <leeyoung@huawei.com>, "Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept)" <zhenghaomian@huawei.com>
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Thread-Topic: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt
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Date: Mon, 22 Oct 2018 11:26:19 +0000
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Subject: Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt
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Out of curiosity, what or who decides what can be considered a “standard”? /Jonas From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> Sent: den 22 oktober 2018 12:30 To: Jonas Mårtensson <jonas.martensson@ri.se>; Beller, Dieter (Nokia - DE/Stuttgart) <dieter.beller@nokia.com>; Leeyoung <leeyoung@huawei.com>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com> Cc: ccamp@ietf.org Subject: RE: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt That’s a good proposal Jonas, we could go for a third branch called “open source” maybe. That’s something that can’t be considered standard, so I’m fine with both the options: Option 1: * Standard ITU * Non standard Option 2: * Standard ITU * Vendor specific * Open source specific. Regarding the use cases that’s the first and I agree with that , but I understood there is also the willingness from operators to open up to scenarios in which transport from vendor A interworks with transponder from vendor B (over vendor A,B,C,D…) BR Daniele From: Jonas Mårtensson <jonas.martensson@ri.se<mailto:jonas.martensson@ri.se>> Sent: sabato 20 ottobre 2018 15:33 To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com<mailto:daniele.ceccarelli@ericsson.com>>; Beller, Dieter (Nokia - DE/Stuttgart) <dieter.beller@nokia.com<mailto:dieter.beller@nokia.com>>; Leeyoung <leeyoung@huawei.com<mailto:leeyoung@huawei.com>>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com<mailto:zhenghaomian@huawei.com>> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: RE: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi all, In addition to G.698.2 and ITU-T, what about referring to transponder interoperability specifications from other organizations, e.g. the Open ROADM MSA (100G DP-QPSK with Staircase FEC) and upcoming OIF 400ZR (400G DP-16QAM with Hamming SD-FEC + Staircase HD-FEC)? Daniele, the scope defined in the draft under discussion is “to provide a Yang data model, which can be utilized by an MDSC to collect states of WSON impairment data from the Transport PNCs to enable impairment-aware optical path computation”. One use case that I see is computing all-optical paths between two transponders from vendor A over vendor B (+C+D+…) optical domains. /Jonas From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com<mailto:daniele.ceccarelli@ericsson.com>> Sent: den 19 oktober 2018 21:25 To: Beller, Dieter (Nokia - DE/Stuttgart) <dieter.beller@nokia.com<mailto:dieter.beller@nokia.com>>; Leeyoung <leeyoung@huawei.com<mailto:leeyoung@huawei.com>>; Jonas Mårtensson <jonas.martensson@ri.se<mailto:jonas.martensson@ri.se>>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com<mailto:zhenghaomian@huawei.com>> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: RE: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt That should be the approach and I’m happy to see quite some alignment on that. As Gert pointed out RFC7581 “provides a switch that enables non-standard implementations, but does not define them”. That is fine, it’s the switch we are talking about. That allows us continue working standard application codes as well as defining new non it code points. --- end of chair statement and start of contributor mode I wonder whether here we are speaking about vendor specific code points or rather operator specific code points. if we speak about vendor specific code points this means that we most likely end up with Vendor 1 supporting code points A,B,C and vendor 2 supporting D,E,F. IMHO it is pointless to have vendor specific code points if the final scope is having equipment from vendor A interwork with equipment form vendor B. Why a standard way of configuring proprietary parameters is needed at all? What OTOH would be useful is a set of agreed code points that allow an operator to have two equipments from different vendors interwork in a non ITU-standard way. BR Daniele From: CCAMP <ccamp-bounces@ietf.org<mailto:ccamp-bounces@ietf.org>> On Behalf Of Beller, Dieter (Nokia - DE/Stuttgart) Sent: venerdì 19 ottobre 2018 17:51 To: Leeyoung <leeyoung@huawei.com<mailto:leeyoung@huawei.com>>; Jonas Mårtensson <jonas.martensson@ri.se<mailto:jonas.martensson@ri.se>>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com<mailto:zhenghaomian@huawei.com>> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi Young, all, I think that we need both, the G.698.2 application codes, which are standardized (standardized operational modes), and vendor-specific operational modes. Operational modes represent optical transponder settings which have to be the same for the two optical transponders terminating a photonic tunnel or segment in case the tunnel includes 3R regenerators. The vendor-ID attribute should be of type string. We can further discuss this in Bangkok. Thanks, Dieter On 16.10.2018 22:33, Leeyoung wrote: Hi Dieter, Thanks for providing good comments. Please see inline for my response. Best regards, Young From: Beller, Dieter (Nokia - DE/Stuttgart) [mailto:dieter.beller@nokia.com] Sent: Tuesday, October 16, 2018 6:57 AM To: Jonas Mårtensson <jonas.martensson@ri.se><mailto:jonas.martensson@ri.se>; Leeyoung <leeyoung@huawei.com><mailto:leeyoung@huawei.com>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com><mailto:zhenghaomian@huawei.com> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi Young, Jonas, all, I checked again the YANG tree<https://github.com/younglee-ietf/actn-wson-flexi-grid/blob/master/ietf-optical-impairment-topology%402018-10-08.tree#L75> (ietf-optical-impairment-topology@2018-10-08.tree<mailto:ietf-optical-impairment-topology@2018-10-08.tree>) and particularly looked at the following augmentation: augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-termination-point: +--rw transponder-id? uint32 +--ro available-modulation* identityref +--rw modulation-enabled? boolean +--rw modulation-type? identityref +--ro available-FEC* identityref +--rw FEC-enabled? boolean +--rw FEC-type? identityref +--ro FEC-code-rate? decimal64 +--rw FEC-threshold? decimal64 +--ro power? int32 +--ro power-min? int32 +--ro power-max? int32 these are clearly optical transponder attributes and I am wondering why the following grouping wson-ttp-attributes<https://github.com/younglee-ietf/actn-wson-flexi-grid/blob/master/ietf-optical-impairment-topology%402018-10-09.yang#L410> is not used: grouping wson-ttp-attributes { description "WSON tunnel termination point (e.g.tranponder) attributes"; leaf-list available-operational-mode { type te-wson-types:operational-mode; description "List of all vendor-specific supported mode identifiers"; } leaf operational-mode { type te-wson-types:operational-mode; description "Vendor-specific mode identifier"; } } This would make the optical transponder configuration attributes related to modulation and FEC obsolete. YL>> Yes, we are discussing if the application codes are going to be used or not. If we are limited to application code usage, then you are correct. A vendor-ID attribute has to be added because the operational modes vcan only be interpreted properly in the scope of a specific vendor. YL>> Can you provide some idea as to vendor-ID attribute? More discussion is also needed regarding power attributes. YL>> Agree. Thanks, Dieter On 16.10.2018 09:35, Jonas Mårtensson wrote: Hi Young, I had a look at the model in the github and I have some questions: About modulation: You have DP_ (Dual Polarization) variants for QPSK and QAM16 but not for QAM8. Is that just an oversight? Also you have DC_ (Dual Carrier?) only for DP_QAM16. Why not for the others? About link (fiber) attributes: since you added a number of attributes in the latest version (e.g. cd and pmd) why not also add loss and distance? Specifically about link attribute “power”: The description now says “Total Input Power Level at the line port of the link”. In the previous version it said "Input Power Level of the receiver side of the link". So which side of the link does the attribute refer to? Why not include power level both at the transmit and receive sides? On the other hand, how is this attribute supposed to be used for path computation since the power level anyway does not represent the new connection (not yet setup) for which path computation is performed. How are the “path” attributes (BER, etc.) meant to be used for path computation? About transponder attributes: Why is the exact FEC-type needed for path computation? Would it not be sufficient to know the FEC-threshold? Another transponder attribute that could be useful to have is required OSNR (per modulation-type). /Jonas From: Leeyoung <leeyoung@huawei.com><mailto:leeyoung@huawei.com> Sent: den 15 oktober 2018 19:03 To: Dieter Beller <Dieter.Beller@nokia.com><mailto:Dieter.Beller@nokia.com>; Jonas Mårtensson <jonas.martensson@ri.se><mailto:jonas.martensson@ri.se>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com><mailto:zhenghaomian@huawei.com> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: RE: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi Dieter, What I meant a new scope of this draft is to combine flexi-grid with WSON (fixed-grid) as we discussed in the last week’s meeting. In regards to your point on separating the topology and the tunnel model, I agree. We haven’t got to the tunnel model yet. Please check the latest model in the github: https://github.com/younglee-ietf/actn-wson-flexi-grid Please find the latest model per our meeting: https://github.com/younglee-ietf/actn-wson-flexi-grid/blob/master/ietf-optical-impairment-topology%402018-10-09.yang and its tree: https://github.com/younglee-ietf/actn-wson-flexi-grid/blob/master/ietf-optical-impairment-topology%402018-10-08.tree Thanks. Young From: Dieter Beller [mailto:Dieter.Beller@nokia.com] Sent: Monday, October 15, 2018 10:46 AM To: Leeyoung <leeyoung@huawei.com<mailto:leeyoung@huawei.com>>; Jonas Mårtensson <jonas.martensson@ri.se<mailto:jonas.martensson@ri.se>>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com<mailto:zhenghaomian@huawei.com>> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi Young, all, it would be great if you could share the new scope on the list before you submit the new version. This will allow folks to send comments to the list. One of my comments was that the current 00-draft is defining augmentations, which are TE-topology related, and other augmentations that are tunnel-related not aligned with the current scope. I would clearly prefer separate drafts for these 2 different categories. Thanks, Dieter On 12.10.2018 16:14, Leeyoung wrote: Hi Jonas, Thanks for your comment. We are updating the draft including the change of the names and the scope. As Haomiana and Gabriele shared their view, we are trying to harmonize with other impairment-related work for GMPLS/WSON. Thanks. Young From: Jonas Mårtensson [mailto:jonas.martensson@ri.se] Sent: Friday, October 12, 2018 2:34 AM To: Leeyoung <leeyoung@huawei.com><mailto:leeyoung@huawei.com>; Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept) <zhenghaomian@huawei.com><mailto:zhenghaomian@huawei.com> Cc: ccamp@ietf.org<mailto:ccamp@ietf.org> Subject: RE: [CCAMP] I-D Action: draft-lee-ccamp-wson-impairment-yang-00.txt Hi Young and Haomian, Interesting draft. What is the relation to other WSON impairment drafts (wson-iv-info and wson-iv-encode)? Are you proposing a completely different approach here since you do not refer to those drafts? /Jonas On 01.09.2018 05:42, internet-drafts@ietf.org<mailto:internet-drafts@ietf.org> wrote: A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : A Yang Data Model for Impairment-Aware WSON Optical Networks Authors : Young Lee Haomian Zheng Filename : draft-lee-ccamp-wson-impairment-yang-00.txt Pages : 18 Date : 2018-08-31 Abstract: This document provides a YANG data model for the impairment-aware TE topology in wavelength switched optical networks (WSONs). The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-lee-ccamp-wson-impairment-yang/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-lee-ccamp-wson-impairment-yang-00 https://datatracker.ietf.org/doc/html/draft-lee-ccamp-wson-impairment-yang-00 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/ _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org<mailto:I-D-Announce@ietf.org> https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt _______________________________________________ CCAMP mailing list CCAMP@ietf.org<mailto:CCAMP@ietf.org> https://www.ietf.org/mailman/listinfo/ccamp -- Dieter Beller Open Agent & Routing Project Manager IP/Optical Networks, Optics, Nokia m : +49 175 7266874 | j: 8831186<ciscotel://8831186> Dieter.Beller@nokia.com<mailto:Dieter.Beller@nokia.com> Nokia Solutions and Networks GmbH & Co. KG Lorenzstr. 10, 70435 Stuttgart Sitz der Gesellschaft: München / Registered office: Munich Registergericht: München / Commercial registry: Munich, HRA 88537 WEEE-Reg.-Nr.: DE 52984304 Persönlich haftende Gesellschafterin / General Partner: Nokia Solutions and Networks Management GmbH Geschäftsleitung / Board of Directors: Dr. Wolfgang Hackenberg, Nils-Peter Daetz, Wilhelm Dresselhaus Vorsitzender des Aufsichtsrats / Chairman of supervisory board: Hans-Jürgen Bill Sitz der Gesellschaft: München / Registered office: Munich Registergericht: München / Commercial registry: Munich, HRB 163416 This e-mail and its attachments, if any, may contain confidential information. If you have received this e-mail in error, please notify us and delete or destroy the e-mail and its attachments, if any, immediately. If you have received this e-mail in error, you must not forward or make use of the e-mail and its attachments, if any.
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Dieter Beller
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gabriele Maria Galimberti (ggalimbe)
- [CCAMP] 答复: I-D Action: draft-lee-ccamp-wson-impa… Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] 答复: I-D Action: draft-lee-ccamp-wson-… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Dieter Beller
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Beller, Dieter (Nokia - DE/Stuttgart)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Beller, Dieter (Nokia - DE/Stuttgart)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Beller, Dieter (Nokia - DE/Stuttgart)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Belotti, Sergio (Nokia - IT/Vimercate)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Beller, Dieter (Nokia - DE/Stuttgart)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Huub van Helvoort
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Leeyoung
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Jonas Mårtensson
- [CCAMP] 答复: I-D Action: draft-lee-ccamp-wson-impa… Zhenghaomian (Zhenghaomian, Optical &Microwave Technology Research Dept)
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Gert Grammel
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Daniele Ceccarelli
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Beller, Dieter (Nokia - DE/Stuttgart)
- [CCAMP] 答复: I-D Action: draft-lee-ccamp-wson-impa… Fatai Zhang
- [CCAMP] 答复: I-D Action: draft-lee-ccamp-wson-impa… Fatai Zhang
- Re: [CCAMP] I-D Action: draft-lee-ccamp-wson-impa… Huub van Helvoort