Re: [ippm] WG adoption call for RFC8321bis and 8889bis

Giuseppe Fioccola <> Fri, 15 April 2022 13:52 UTC

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From: Giuseppe Fioccola <>
To: "" <>, t petch <>, Tommy Pauly <>, ippm <>
Thread-Topic: Re: [ippm] WG adoption call for RFC8321bis and 8889bis
Date: Fri, 15 Apr 2022 13:52:25 +0000
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Subject: Re: [ippm] WG adoption call for RFC8321bis and 8889bis
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Hi Zhenqiang,
Thank you for your good opinion.
Please note that it is implemented from different vendors and operators.
In this regard, you can have a look at the poll launched last year about RFC8321 and RFC8889:
Also, draft-ietf-6man-ipv6-alt-mark is not the only application. Indeed the method is applied to MPLS (draft-ietf-mpls-rfc6374-sfl), BIER (draft-ietf-bier-pmmm-oam), SFC (draft-mfm-ippm-sfc-nsh-pmamm), …



From: <>
Sent: Friday, April 15, 2022 12:55 PM
To: Giuseppe Fioccola <>; t petch <>; Tommy Pauly <>; ippm <>
Subject: Re: Re: [ippm] WG adoption call for RFC8321bis and 8889bis

Hello Giuseppe and all,

I've read the two drafts. The solutions proposed are interesting and may be useful in theory. However, I see no standard requirement  in their current versions. Can the implemetations from different vendors interoperate with each other? If draft-ietf-6man-ipv6-alt-mark is enough to ensure the interoperation, is it possible to not refer RFC8321 or 8889 at all?

Best Regards,
Zhenqiang Li<>

From: Giuseppe Fioccola<>
Date: 2022-04-09 02:05
To: t petch<>; Tommy Pauly<>; IETF IPPM WG<>
Subject: Re: [ippm] WG adoption call for RFC8321bis and 8889bis
Hi Tom,
Please see my replies inline tagged as [GF].



-----Original Message-----
From: t petch <<>>
Sent: Friday, April 8, 2022 5:37 PM
To: Giuseppe Fioccola <<>>; Tommy Pauly <<>>; IETF IPPM WG <<>>
Subject: Re: [ippm] WG adoption call for RFC8321bis and 8889bis

On 08/04/2022 10:52, Giuseppe Fioccola wrote:
> Hi Tom,
> Thank you for your feedback.
> Please find my answers inline tagged as [GF].
> Regards,
> Giuseppe
> -----Original Message-----
> From: ippm <<>> On Behalf Of t petch
> Sent: Friday, April 8, 2022 11:27 AM
> To: Tommy Pauly <<>>; IETF IPPM WG
> <<>>
> Subject: Re: [ippm] WG adoption call for RFC8321bis and 8889bis
> On 08/04/2022 09:42, t petch wrote:
>> On 08/04/2022 01:03, Tommy Pauly wrote:
>>> Hello IPPM,
>> 'this document'
>> Which document?
>> Please post subsequent e-mails about one I-D only with the subject
>> line indicating which, else I will get confused (and may well confuse
>> others with my comments).
> I note that 'this document' fails to give any explanation of why it exists (beyond the boiler-plate that tells me it is obsoleting)?
> Why?  I may know the answer but think it wrong to assume that others will.
> This should be in the Introduction and there should also be a 'Changes from ...'
> [GF]: Sure. I will add the explanation in the introduction of both RFC8321bis and RFC8889bis. It is to elevate the Experimental RFCs to Standard Track. There are several implementations (e.g.  that need a normative reference for the methodology. Our initial approach was to use the informative reference but it was not accepted by the IESG. Therefore it was suggested to obsolete the experimental docs with new standard docs.

Yes.  I have followed the thread and did voice my support for new RFC which I am glad to see.  And below ...

[GF]: Thank you for the support.

> Please note that, for both drafts, you can find the Changes Log in Appendix with all the modifications from the original RFCs for each version.
  ... Yes but that is not quite what I had in mind.   Think of an
implementor who has accurately implemented RFC8321; they need to know if and how to change the code, they do not want a blow-by-blow account of every text change, how the RFC-to-be came to be what it is, just a statement of what needs changing where (if anything); and an Appendix labelled 'Changes Log', while helpful for the WG, is a candidate for excision by the RFC Editor whereas I am thinking of an Informative appendix that is referenced by the Introduction - 'Appendix X contains a list of technical changes from RFC8321'. Look at RFC7950; this lists the changes from RFC6020 and, at the insistence of the AD, the list was split into NBC and BC and was put up front.  Your changes are likely minor but I think that RFC7950 is a template of how to format a new version of a protocol.

[GF]: Thanks for the suggestion. We can surely consider to follow the template of RFC7950. We are elevating the experimental RFCs to standard track so all the changes are just about the structure, further clarification and the use of a standard wording. No new additions to the methodology have been made. I can write a summary of the changes after the Introduction and it can be a short section that reports the recommendations for the implementation included in the standard track draft.

Tom Petch

> Tom Petch
>> Tom Petch
>>> Best,
>>> Tommy & Marcus
>>>> On Apr 7, 2022, at 1:16 PM, Martin Duke <<>> wrote:
>>>> Hello IPPM,
>>>> You may recall that there was a need to progress RFC8321 and
>>>> RFC8889 from Experimental to Proposed Standard. There was a feeling
>>>> that the update would be trivial and we could therefore do it as an
>>>> AD sponsored document.
>>>> I've done 3 rounds of AD review and I've seen the need to
>>>> substantially adjust the scope of these documents and tweak the
>>>> design in places. The changes are not revolutionary, but I'm a
>>>> non-practitioner and have driven some design changes with minimal
>>>> review. At this point I think it's important to get good IPPM
>>>> review; if we're going to do that anyway, we might as well do the
>>>> (expedited) working group process so that there's no confusion as
>>>> to why IPPM didn't formally review an update to its own documents.
>>>> So, as first step, I invite the working group to adopt these two drafts:
>>>> <>
>>>> <>
>>>> Any objections to adoption, as always, should be to the value of
>>>> doing the work at all, and the general direction of the drafts. I
>>>> hope to follow up the adoption call with an immediate WGLC to shake
>>>> out any detailed objections, though we will take as long as we need
>>>> to address concerns that people have.
>>>> I invite you to consult the changelogs on both of these documents,
>>>> which are not long, to get a sense of what we've done.
>>>> For those of you who like diffs, there was a big reorganization
>>>> between draft-02 and -03 that is hard to follow in a diff. So here
>>>> is a set of diffs that exclude the -02 to -03 transition:
>>>> f
>>>> c8321bis-02.txt
>>>> <
>>>> r
>>>> fc8321bis-02.txt>
>>>> u rl2=draft-fioccola-rfc8321bis-04.txt
>>>> <
>>>> & url2=draft-fioccola-rfc8321bis-04.txt>
>>>> f
>>>> c8889bis-02.txt
>>>> <
>>>> r
>>>> fc8889bis-02.txt>
>>>> u rl2=draft-fioccola-rfc8889bis-04.txt
>>>> <
>>>> & url2=draft-fioccola-rfc8889bis-04.txt>
>>>> I believe it's up to the chairs to start the adoption call. If
>>>> people are good about reading the document during WGLC, I would
>>>> like to think we could be done before IETF 114.
>>>> Your friendly Area Director,
>>>> Martin
>>>> _______________________________________________
>>>> ippm mailing list
>>> _______________________________________________
>>> ippm mailing list
> _______________________________________________
> ippm mailing list
> .

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