Re: [sfc] Progression of use case documents in the SFC WG

Hi Diego,

Yes, I agree, and a section in draft-liu-service-chaining-use-cases will make more sense rather than repeat it in both draft-haeffner-sfc-use-case-mobility-00 and draft-kumar-sfc-dc-use-cases-00.

Cheers,
Yuanlong

-----Original Message-----
From: Diego R. Lopez [mailto:diego@tid.es] 
Sent: Sunday, March 30, 2014 3:09 AM
To: Jiangyuanlong
Cc: Joel M. Halpern; Jim Guichard (jguichar); sfc@ietf.org
Subject: Re: [sfc] Progression of use case documents in the SFC WG

Hi Yuanlong,

And therefore I'd say it deserves a section by itself...

Be goode,

On 29 Mar 2014, at 05:58 , Jiangyuanlong <jiangyuanlong@huawei.com> wrote:

> Joel,
> This seems like a general use case which fits into DC, broadband, mobility and etc.
> Cheers,
> Yuanlong
>
> -----Original Message-----
> From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Joel M. Halpern
> Sent: Thursday, March 27, 2014 4:00 AM
> To: Jim Guichard (jguichar); sfc@ietf.org
> Subject: Re: [sfc] Progression of use case documents in the SFC WG
>
> Where does the long-lived flows case we presented in London fit?
>
> Thank you,
> Joel
>
> On 3/26/14, 1:54 PM, Jim Guichard (jguichar) wrote:
>> WG:
>>
>> In a message back in January, we (the chairs) proposed that the SFC WG
>> handle the topic of use case documents as follows:
>>
>>    1) Have the WG develop one use case document that documents a small
>>    number of representative use cases.  The document presented by
>>    Hongyu Li at the Vancouver BOF could serve for this purpose
>>    (http://datatracker.ietf.org/doc/draft-liu-service-chaining-use-cases).
>>
>>
>>    3) For additional use cases not covered in 1) above, allow for a
>>    small number of documents that are applicable to specific
>>    environments (e.g.  mobility, data center, broadband, and so forth.)
>>    These documents would provide more detailed information and
>>    applicability of SFC to these specific environments, and would need
>>    to go beyond what is covered in the general use case document (1).
>>    Note that it is not the intention to have every potential use case
>>    documented.
>>
>>
>> Since then, and based on the presentations/discussion in London, it
>> appears that we have a number of documents that warrant being developed
>> as standalone documents. Specifically:
>>
>> 1) A use case document on mobility, e.g.,
>> http://datatracker.ietf.org/doc/draft-haeffner-sfc-use-case-mobility/
>>
>> 2) A use case document on Data Centers, e.g.,
>> http://datatracker.ietf.org/doc/draft-kumar-sfc-dc-use-cases/
>>
>> 3) Possibly a use case document on Broadband scenarios. However, use
>> cases from a broadband perspective are being developed in the BBF (see
>> the liaison statement at https://datatracker.ietf.org/liaison/1304/). We
>> also have
>> http://datatracker.ietf.org/doc/draft-meng-sfc-broadband-usecases/.  It
>> does not seem appropriate to adopt a WG document on the topic of
>> broadband (at least at this time) without clarifying the relationship
>> between draft-meng-sfc-broadband-usecases and the BBF work. In addition,
>> we would need to understand why two efforts - one in BBF and one in the
>> IETF -- on the same topic would be appropriate. Hence, at the present
>> time, we do not intend to adopt a WG document on broadband scenarios,
>> and expect to receive primary guidance on this topic from the BBF.
>>
>> That leaves: http://datatracker.ietf.org/doc/draft-liu-sfc-use-cases/, a
>> more general document. But that document includes text on three topics
>> that would be covered in more detail elsewhere (broadband, mobile, and
>> DC). While this document could contain pointers to the other documents,
>> that leaves the document with very little standalone content -- raising
>> the question of what should be done with it, or what content it could
>> incorporate in order to be worthwhile as a standalone document.
>>
>> Thus, the chairs recommendation at this time is:
>>
>> 1) Call for WG adoption of draft-haeffner-sfc-use-case-mobility-00.txt
>> and draft-kumar-sfc-dc-use-cases-00.txt as WG documents (target:
>> informational).
>>
>> 2) Defer action on draft-liu-service-chaining-use-cases
>> <http://datatracker.ietf.org/doc/draft-liu-service-chaining-use-cases>
>> and draft-meng-sfc-broadband-usecases
>> <http://datatracker.ietf.org/doc/draft-meng-sfc-broadband-usecases/> per
>> the above discussion.
>>
>> Does this make sense?
>>
>> Jim & Thomas
>>
>>
>> _______________________________________________
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>> sfc@ietf.org
>> https://www.ietf.org/mailman/listinfo/sfc
>>
>
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