Re: [Teas] New term for the underlay construct used for slice realization
"Joel M. Halpern" <jmh@joelhalpern.com> Fri, 13 August 2021 13:30 UTC
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To: "Dongjie (Jimmy)" <jie.dong@huawei.com>, "teas@ietf.org" <teas@ietf.org>
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Fri, 13 Aug 2021 09:29:51 -0400
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Subject: Re: [Teas] New term for the underlay construct used for slice realization
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If, as per the bestbar draft and the discussion of VTN-ID on 6man, this construct is NOT a forwarding construct, then I do not see how it identifies a sub-topology. It needs to be tied to a topology where it is supported. But since it is not the forwarding construct, it doesn't need to identify that topology as far as I can tell. Yours, Joel On 8/13/2021 8:11 AM, Dongjie (Jimmy) wrote: > Hi John, > > Thanks for your clarification. I think we are mostly aligned. > > My hope is the new term could reflect the two basic attributes of the underlay construct: partitioned resource and a (sub-)topology. > > Best regards, > Jie > >> -----Original Message----- >> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of John E Drake >> Sent: Wednesday, August 11, 2021 8:38 PM >> To: Dongjie (Jimmy) <jie.dong@huawei.com>; Lizhenbin >> <lizhenbin@huawei.com>; teas@ietf.org >> Subject: Re: [Teas] New term for the underlay construct used for slice >> realization >> >> Jimmy, >> >> Snipped, comments inline. >> >> Yours Irrespectively, >> >> John >> >> >> Juniper Business Use Only >> >>> -----Original Message----- >>> From: Dongjie (Jimmy) <jie.dong@huawei.com> >>> Sent: Tuesday, August 10, 2021 11:03 PM >>> To: John E Drake <jdrake@juniper.net>; Lizhenbin >>> <lizhenbin@huawei.com>; teas@ietf.org >>> Subject: RE: New term for the underlay construct used for slice >>> realization >>> >>> [External Email. Be cautious of content] >>> >> underlay construct for network slice realization bound to >>>>> network slice services? That is, is the underlay construct only >>>>> for use in network slicing, or should it be generalized for more possible >> uses? >>>> >>>> [JD] Absolutely yes >>> >>> [Jie] I guess you mean "Yes" to the latter case, which is "it should >>> be generalized for more possible uses", is my understanding correct? >> >> [JD] Yes to the latter >> >>> >>>> >>>>> >>>>> 2. If the answer to question 1 is YES, should it reflect the following >>>>> characteristics? >>>>> >>>>> a. It is about the underlay >>>>> b. It is about the partitioned resources used to deliver the network >> slice >>>>> services >>>>> c. It allows the 1:1, N:1, and 1:N mapping models between the >> network >>>> slice >>>>> services and the underlay construct. The 1:1 and N:1 mapping may >>>>> be straightforward. Does it also make sense to divide the elements >>>>> or traffic flows in a single network slice service to carry them >>>>> in different >>>> underlay constructs? >>>> >>>> [JD] Yes to all of the above. Please see: >>>> https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/dr >>>> af >>>> t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO- >>> gk!TCiJHCZCwFgwpuFoujxVlZ4r9 >>>> F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$ >>>>> >>>>> Lastly, here are some candidates of the "new term": >>>>> >>>>> Option 1: The network slice service is called "overlay slice", >>>>> then the underlay construct is called "underlay slice". >>>>> >>>>> Option 2: The network slice service is called "service slice", >>>>> then the underlay construct is called "resource slice". >>>> >>>> [JD] I don't think we need another term for what we are already >>>> calling an 'IETF Network Slice Service'. Adrian and I are >>>> considering the term 'resource partition' to describe the >>>> partitioning of underlay network resources in support of various >>>> overlay services such as IETF Network >>> Slice Services. >>>> This is congruent with the ideas expressed in: >>>> https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/dr >>>> af >>>> t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO- >>> gk!TCiJHCZCwFgwpuFouj >>>> xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$ >>>> ts-03. What this allows one to build is an 'partitioned underlay >>>> network topology'. >>> >>> [Jie] Agree that here we are talking about the term for the underlay construct. >>> "Resource partition" captures one of its key characteristics, while >>> IMO another thing the term needs to reflect is that the resource >>> partition is needed on a subset of the links and nodes (rather than on >>> a single node or link) in the physical network, which together builds a logical >> network topology. >> >> [JD] In my initial email, above, I was proposing 'partitioned underlay network >> topology' >> >>> >>> Best regards, >>> Jie >>> >>>> >>>>> >>>>> Your opinion about these candidates are much appreciated. You may >>>>> also propose other new term if it complies with the above two points. >>>> >>>> [JD] I think you have exceeded your remit. >>>> >>>>> >>>>> >>>>> >>>>> Best Regards, >>>>> Robin >>>>> >>>>> _______________________________________________ >>>>> Teas mailing list >>>>> Teas@ietf.org >>>>> https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/ >>>>> te >>>>> as >>>>> __;!!N >>>>> Et6yMaO-gk!Q0ycOf0ELxT6mG1GbnO4LSL-Q99J4uu7jfdUtBECaI- >>>>> O08HqD31TGJciNjuxL2A$ >>>> >>>> _______________________________________________ >>>> Teas mailing list >>>> Teas@ietf.org >>>> https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/te >>>> as >>>> __;!!NEt6yMaO-gk!TCiJHCZCwFgwpuFoujxVlZ4r9F6mLpE4nJ-9zpqkY-kls- >>> ROxL4C2 >>>> _xNDCrPaNQ$ >> >> _______________________________________________ >> Teas mailing list >> Teas@ietf.org >> https://www.ietf.org/mailman/listinfo/teas > > _______________________________________________ > Teas mailing list > Teas@ietf.org > https://www.ietf.org/mailman/listinfo/teas >
- [Teas] New term for the underlay construct used f… Lizhenbin
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… Joel M. Halpern
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… Joel M. Halpern
- Re: [Teas] New term for the underlay construct us… gregory.mirsky
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… Kiran Makhijani
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… Adrian Farrel
- Re: [Teas] New term for the underlay construct us… gregory.mirsky
- Re: [Teas] New term for the underlay construct us… Gyan Mishra
- Re: [Teas] New term for the underlay construct us… Kiran M
- Re: [Teas] New term for the underlay construct us… Gyan Mishra
- Re: [Teas] New term for the underlay construct us… Adrian Farrel
- Re: [Teas] New term for the underlay construct us… Luis M. Contreras
- Re: [Teas] New term for the underlay construct us… Tarek Saad
- Re: [Teas] New term for the underlay construct us… Adrian Farrel
- Re: [Teas] New term for the underlay construct us… Kiran M
- Re: [Teas] New term for the underlay construct us… Vishnu Pavan Beeram
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… Joel M. Halpern
- Re: [Teas] New term for the underlay construct us… Dongjie (Jimmy)
- Re: [Teas] New term for the underlay construct us… Joel M. Halpern
- Re: [Teas] New term for the underlay construct us… Igor Bryskin
- Re: [Teas] New term for the underlay construct us… peng.shaofu
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… Lizhenbin
- Re: [Teas] New term for the underlay construct us… John E Drake
- Re: [Teas] New term for the underlay construct us… 龚立艳
- Re: [Teas] New term for the underlay construct us… Lizhenbin
- Re: [Teas] New term for the underlay construct us… Tarek Saad
- Re: [Teas] New term for the underlay construct us… Vishnu Pavan Beeram
- Re: [Teas] New term for the underlay construct us… Adrian Farrel
- Re: [Teas] New term for the underlay construct us… Vishnu Pavan Beeram