Hi Med, 

> On Jul 10, 2025, at 11:54 PM, [email protected] wrote:
> 
> Hi Acee,
> 
> Hmm. I won't clear now, Acee. There are other pending points in this DICUSS 
> other than registry policy.

Ok - I was going to reply more on the registration policy but Les's response 
captures what I was going to say. 

> 
> Please poke me when a new version with a concrete proposal addressing those 
> is available for review. Thank you.

Peter will be back from PTO on Monday and I'm sure he'll address then. 

Thanks,
Acee


> 
> Cheers,
> Med
> 
>> -----Message d'origine-----
>> De : Acee Lindem <[email protected]>
>> Envoyé : vendredi 11 juillet 2025 02:07
>> À : Ketan Talaulikar <[email protected]>
>> Cc : Les Ginsberg (ginsberg) <[email protected]>; BOUCADAIR Mohamed
>> INNOV/NET <[email protected]>; Peter Psenak
>> <[email protected]>; The IESG <[email protected]>; draft-ietf-lsr-igp-
>> [email protected]; [email protected]; lsr
>> <[email protected]>
>> Objet : Re: Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-flex-
>> algo-reverse-affinity-07: (with DISCUSS and COMMENT)
>> 
>> 
>> Med,
>> So can you  clear your discuss without further delay? We really want
>> to keep this new registry "Expert Review" like the other IS-IS
>> registries and I don't think you've provided a good reason not to.
>> I believe you understand this is not a registry that defines code
>> points but the order of application of the Flex Algo constraints.
>> Hence, it is not going to have specific ranges.
>> Thanks,
>> Acee
>> 
>>> On Jul 10, 2025, at 10:45 AM, Ketan Talaulikar
>> <[email protected]> wrote:
>>> 
>>> 
>> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
>> w.
>>> rfc-editor.org%2Frfc%2Frfc7370.html%23section-
>> 4&data=05%7C02%7Cmohamed
>>> 
>> .boucadair%40orange.com%7Ce7a53a1ea1d44aba3b2a08ddc00eea77%7C90c7a20
>> af
>>> 
>> 34b40bfbc48b9253b6f5d20%7C0%7C0%7C638877892487416196%7CUnknown%7CTWF
>> pb
>>> 
>> GZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsI
>> kF
>>> 
>> OIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=fC%2FxQkw2NfJMjA5Sg
>> 1j
>>> O62wLgR%2F0Hibvupf69FACijw%3D&reserved=0
>>> 
>>> When new I-Ds are introduced requiring new codepoints, it is
>>> advantageous to be able to allocate codepoints without waiting for
>>> them to progress to RFC. The reasons this is advantageous are
>>> described in [RFC7120]. However, the procedures in [RFC7120] for
>> early
>>> allocation do not apply to registries, such as the "IS-IS TLV
>>> Codepoints" registry, that utilize the "Expert Review" allocation
>>> policy. In such cases, what is required is that a request be made
>> to
>>> the Designated Experts who MAY approve the assignments according
>> to
>>> the guidance that has been established for the registry concerned.
>>> 
>>> 
>>> 
>>> On Thu, Jul 10, 2025 at 8:11 PM Les Ginsberg (ginsberg)
>> <[email protected]> wrote:
>>> Ketan –
>>> Please read RFC 7370 more closely.
>>> Early allocation is supported – but it is NOT made permanent until
>> RFC status is achieved.
>>> <snip>
>>> 6.  In the event that the document fails to progress to RFC, the
>>>       Expiry and deallocation process defined in [RFC7120] MUST
>> be
>>>       followed for the relevant codepoints -- noting that the
>>>       Designated Experts perform the role assigned to Working
>> Group
>>>       chairs.
>>> <end snip>
>>> As I have indicated in my response to Med, the important issue
>> here is the clear guidance associated with the registry. We should
>> focus on that.
>>>     Les
>>>  From: Ketan Talaulikar <[email protected]>
>>> Sent: Thursday, July 10, 2025 5:41 AM
>>> To: [email protected]
>>> Cc: Les Ginsberg (ginsberg) <[email protected]>; Peter Psenak
>>> (ppsenak) <[email protected]>; The IESG <[email protected]>;
>>> [email protected];
>>> [email protected]; [email protected]; [email protected]
>>> Subject: Re: Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-
>> flex-algo-reverse-affinity-07: (with DISCUSS and COMMENT)
>>>  Hi Les,
>>>  It was not clear to me that the WG wanted to allow for Flex-Algo
>> documents with experimental status to introduce rules in this
>> registry. If that is indeed the case, then Standards Action is not
>> appropriate.
>>>  Picking the Expert Review policy (with the appropriate guidance
>> to DEs) will enable allocation to be made permanently while the
>> document is still in the WG phase but considered stable. Picking
>> IETF Review will require the Early Allocation procedures (and
>> renewals) [RFC7120] to be performed if the allocation is needed
>> before publication - here the WG/IETF is the "expert".
>>>  The choice is for the WG to make.
>>>  Thanks,
>>> Ketan
>>>    On Thu, Jul 10, 2025 at 10:07 AM <[email protected]>
>> wrote:
>>> Hi Les,
>>> Glad to hear that we agree on having guidance. Will look into
>> those when a concrete proposal is made by the WG. Another pending
>> item is to check whether we declare the registry authoritative and
>> thus tag RFC9350 and RFC-to-be-draft-ietf-lsr-flex-algo-bw-con as
>> updated by this one.
>>> You raised an interesting point about experimental. An option for
>> consideration to cover that case in addition to what was already
>> discussed is “IETF Review”.
>>> Unless the WG have done that, but which I fail to see in the
>> draft and searching on the archives, I think we need to walkthrough
>> the experimental path as I don’t think we have the pieces in place.
>> For example:
>>> 
>>>    • There is currently no provision of experimental use in the
>> spec
>>>    • There is no explanation of what experimental use means in
>> this case
>>>    • There is no visible/field to help users of the registry that
>> a part of the algo is experimental (whatsoever that means)
>>>    • There is an apparent disconnect with the spirit of RFC9350
>> which says the following for FAD, for example:
>>>    The values 6-32767 are unassigned, and values 32768-33023 are
>> for
>>>   Experimental Use; these will not be registered with IANA.
>>> 
>>>    • ..
>>>    • Of course, we need to supply some operational guidance if we
>> are mixing std/exp components.
>>> I’m more and more convinced that this part of the draft is better
>> handed in a separated document and keep this one focused on reverse-
>> affinity.
>>> Cheers,
>>> Med
>>>  De : Les Ginsberg (ginsberg) <[email protected]> Envoyé :
>> mercredi
>>> 9 juillet 2025 17:59 À : BOUCADAIR Mohamed INNOV/NET
>>> <[email protected]>; Peter Psenak (ppsenak)
>>> <[email protected]>; The IESG <[email protected]> Cc :
>>> [email protected]; lsr-
>> [email protected]; [email protected]; [email protected] Objet : RE:
>> Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-flex-algo-reverse-
>> affinity-07: (with DISCUSS and COMMENT)
>>>  Med –
>>> Thanx for the constructive response.
>>> NOTE: I am not a draft author and am not speaking on behalf of the
>> draft authors.
>>> Please see inline.
>>>  From: [email protected]
>> <[email protected]>
>>> Sent: Wednesday, July 9, 2025 1:15 AM
>>> To: Les Ginsberg (ginsberg) <[email protected]>; Peter Psenak
>>> (ppsenak) <[email protected]>; The IESG <[email protected]>
>>> Cc: [email protected];
>>> [email protected]; [email protected]; [email protected]
>>> Subject: RE: Mohamed Boucadair's Discuss on
>>> draft-ietf-lsr-igp-flex-algo-reverse-affinity-07: (with DISCUSS
>> and
>>> COMMENT)  Hi Les,  Thank you for this input.
>>> The guidance in 7370 is not sufficient here, IMO. The new
>> registry is special in the sense that it is not about assigning a
>> codepoint, but about maintaining an algorithm. As with any
>> algorithm, and as we gain deployment experience and new needs are
>> defined, steps may need some tweaking.
>>> We need to set the expectation on the maintenance of such an
>> algorithm when offloaded to a registry, especially with a DE policy.
>> As already indicated in my ballot, I’d expect at least we have
>> guidance whether we allow reorder steps, merge steps, insert a step
>> between existing ones, update an existing one, etc. These are of
>> course examples, but the point is to exemplify my purpose.
>>> [LES:] I agree with the points you have made. Additional
>> guidelines would be helpful.
>>> In the meantime, I also don’t want us to set rules that may not
>> be flexile enough to accommodate specific needs in the future. This
>> is why I favor for now to change the policy to Standard Action.
>>> [LES:] I do not see that Standard Action policy has any advantage
>> – or in any way addresses your concerns. And, as I have pointed out,
>> it has limits that seem unnecessary/undesirable in this case. For
>> example, it is at least conceivable that an experimental use of
>> flex-algo may be defined in the future and it would be useful to be
>> able to incorporate any new rules in a way that avoids
>> interoperability issues. My interpretation of Standards Action
>> policy is that it provides no support for that.
>>> In summary, I support your desire to see more complete guidelines
>> for the new registry – but I don’t support the use of Standards
>> Action policy for the registry.
>>>    Les
>>> Cheers,
>>> Med
>>>  De : Les Ginsberg (ginsberg)
>> <[email protected]>
>>> Envoyé : mardi 8 juillet 2025 22:31
>>> À : BOUCADAIR Mohamed INNOV/NET <[email protected]>;
>> Peter
>>> Psenak <[email protected]>; The IESG
>> <[email protected]>
>>> Cc : [email protected]; lsr-
>> [email protected]; [email protected]; [email protected] Objet : RE:
>> Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-flex-algo-reverse-
>> affinity-07: (with DISCUSS and COMMENT)
>>>  In regards to the registration policy for the new registry
>>> introduced by this draft – about which at least three IESG
>> reviewers have commented (Ketan, Mohammed, and Roman) – all
>> suggesting “Standards Action” rather than “Expert Review” as the
>> policy…  As the author of RFC 7370 – on which all of the IS-IS
>> Registries (and some of the IGP Parameter registries) policies are
>> based – I would like to comment.
>>> RFC 7370 was written precisely to address the use of Expert
>> Review for registries. This was done in part because we wanted a
>> policy that supports all RFC Tracks – including experimental.
>>> We also provided detailed instructions to the Designated Experts –
>> see
>>> 
>> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
>> w.
>>> rfc-editor.org%2Frfc%2Frfc7370.html%23section-
>> 4&data=05%7C02%7Cmohamed
>>> 
>> .boucadair%40orange.com%7Ce7a53a1ea1d44aba3b2a08ddc00eea77%7C90c7a20
>> af
>>> 
>> 34b40bfbc48b9253b6f5d20%7C0%7C0%7C638877892487435770%7CUnknown%7CTWF
>> pb
>>> 
>> GZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsI
>> kF
>>> 
>> OIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=tOmlOs3N6VN0FryN%2B
>> pN
>>> oHxPMYS3SE%2Fh%2BYTmJ8NKBdkg%3D&reserved=0
>>> I do not see that Standards Action policy is more robust – and it
>> has the decided disadvantage that it only allows for “Standards
>> Track or Best Current Practice RFCs” (as per
>> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
>> w.rfc-editor.org%2Frfc%2Frfc8126%23section-
>> 4.9&data=05%7C02%7Cmohamed.boucadair%40orange.com%7Ce7a53a1ea1d44aba
>> 3b2a08ddc00eea77%7C90c7a20af34b40bfbc48b9253b6f5d20%7C0%7C0%7C638877
>> 892487450204%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiI
>> wLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C
>> %7C%7C&sdata=01t3hsNMQ4gAUCc53NMFETO68%2FBJjG4q6ryHLwgFdIY%3D&reserv
>> ed=0 ).
>>> I would ask the IESG reviewers to consider the above. If you
>> still feel that RFC 7370 based Expert Review policy is lacking,
>> please be more specific in your reasons as to why.
>>> Thanx.
>>>     Les
>>> 
>>> 
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> 
> ____________________________________________________________________________________________________________
> Ce message et ses pieces jointes peuvent contenir des informations 
> confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu 
> ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages 
> electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou 
> falsifie. Merci.
> 
> This message and its attachments may contain confidential or privileged 
> information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and delete 
> this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have been 
> modified, changed or falsified.
> Thank you.

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