Re: [CCAMP] Question on draft-zheng-ccamp-yang-otn-slicing-03
Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> Tue, 25 January 2022 14:12 UTC
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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: Aihua Guo <aihuaguo.ietf@gmail.com>, "Rokui, Reza" <rrokui@ciena.com>
CC: CCAMP <ccamp@ietf.org>, Fatai Zhang
<zhangfatai=40huawei.com@dmarc.ietf.org>
Thread-Topic: [CCAMP] Question on draft-zheng-ccamp-yang-otn-slicing-03
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Date: Tue, 25 Jan 2022 14:12:25 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ccamp/m_8dMtmqBMdJUGDd1Vq0Kqkxjf4>
Subject: Re: [CCAMP] Question on draft-zheng-ccamp-yang-otn-slicing-03
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Hi, Speaking as an individual I tend to agree with Igor on the fact that we need a document in CCAMP to explain how OTN is used to support network slicing, a kind of applicability document. The role of the OTN-SC as NS realizer would perfectly fit into it. Speaking about OTN slicing seems to be a bit “excessive”. For sure all the use cases in the draft make a lot of sense, like the wholesale one, but I would see as a request for an OTN service, not as an OTN slice. Again, this is just my personal opinion. Tomorrow when the poll will be closed Fatai and I will try to understand where the consensus is. Probably it could be a good idea to put the call for consensus on hold and have an interim meeting dedicated just to this topic. BR Daniele From: CCAMP <ccamp-bounces@ietf.org> On Behalf Of Aihua Guo Sent: den 24 januari 2022 18:02 To: Rokui, Reza <rrokui@ciena.com> Cc: CCAMP <ccamp@ietf.org>rg>; Fatai Zhang <zhangfatai=40huawei.com@dmarc.ietf.org> Subject: Re: [CCAMP] Question on draft-zheng-ccamp-yang-otn-slicing-03 Hi Reza, Thank you for the comments. I agree with you that from the IETF NSC perspective, OTN-SC can be seen as just an NS realizer for underlying OTN technology. Additionally, OTN-SC could use the same interface to support technology-specific slicing for OTN-aware customers. These points can be captured in the next revision of the draft. Thanks, Aihua On Mon, Jan 24, 2022 at 9:00 AM Rokui, Reza <rrokui@ciena.com<mailto:rrokui@ciena.com>> wrote: Hi AIhua, I would like to bring another item for discussion which is relationship between OTN-SC and following draft: * draft-contreras-teas-slice-controller-models-01 In this draft, the internal logic of an IETF Network Slice Controller has been discussed which shown in picture on left. There is one technology-specific functional block called “NS Realizer”. If you compare this with picture on right, it seems reasonable to assume OTN-SC is simply the NS Realizer for OTN technology. IMO, it would be helpful if this concept is captured in your draft to reflect this fact that OTN-SC is just a “NS Realizer” for OTN network. Cheers, Reza [Diagram Description automatically generated]
- [CCAMP] Question on draft-zheng-ccamp-yang-otn-sl… Rokui, Reza
- Re: [CCAMP] Question on draft-zheng-ccamp-yang-ot… Aihua Guo
- Re: [CCAMP] Question on draft-zheng-ccamp-yang-ot… Daniele Ceccarelli
- Re: [CCAMP] Question on draft-zheng-ccamp-yang-ot… Aihua Guo
- Re: [CCAMP] Question on draft-zheng-ccamp-yang-ot… Adrian Farrel