AFAIK, the assignment must be requested by the chairs to IANA, who will then 
consult us.

If the chairs are not being responsive, then you should consult the AD.

Tony


> On Jun 26, 2026, at 8:07 AM, Les Ginsberg (ginsberg) - ginsberg=40cisco.com 
> at dmarc.ietf.org <[email protected]> wrote:
> 
> Shraddha –
>  
> As to the IS-IS Router Capability sub-TLV, temporary assignment has been 
> made. See 
> https://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#isis-tlv-codepoints-242
>  
> <snip>
> 250       Flood Reduction Algorithm (TEMPORARY - registered 2026-05-20, 
> expires 2027-05-20)           n                
> [draft-ietf-lsr-flood-reduction-arch-01]
> <end snip>
>  
> I cannot speak to the IGP Algorithm Registry assignment – which it seems has 
> not yet been made.
> Perhaps the newly assigned experts (Tony/Peter) know more.
>  
>    Les
>  
>  
>  
> From: Hegde, Shraddha <[email protected]>
> Sent: Thursday, June 25, 2026 9:25 PM
> To: Gunter van de Velde (Nokia) 
> <[email protected]>; Yingzhen Qu 
> <[email protected]>
> Cc: Les Ginsberg (ginsberg) <[email protected]>; Acee Lindem 
> <[email protected]>; Tony Przygienda <[email protected]>; lsr 
> <[email protected]>; lsr-chairs <[email protected]>; Hannes Gredler 
> ([email protected]) <[email protected]>
> Subject: Re: [Lsr] Re: Request for temporary assignements of code4points
>  
> Hello,
>  
> I wanted to follow-up on the early allocation code  for
>  
>  IS-IS Sub-TLVs for Router CAPABILITY TLV.   250 
> IGP Algorithm registry for disttopo 125
>  
> Any AI pending from author's side on this?
>  
> Rgds
> Shraddha
>  
> From: Gunter van de Velde (Nokia) 
> <[email protected] 
> <mailto:[email protected]>>
> Sent: 22 May 2026 13:20
> To: Yingzhen Qu <[email protected] <mailto:[email protected]>>
> Cc: Les Ginsberg (ginsberg) <[email protected] <mailto:[email protected]>>; 
> Acee Lindem <[email protected] <mailto:[email protected]>>; Tony 
> Przygienda <[email protected] <mailto:[email protected]>>; lsr 
> <[email protected] <mailto:[email protected]>>; lsr-chairs <[email protected] 
> <mailto:[email protected]>>; Hannes Gredler ([email protected] 
> <mailto:[email protected]>) <[email protected] <mailto:[email protected]>>
> Subject: [Lsr] Re: Request for temporary assignements of code4points
>  
> Hi Yingzhen, All
>  
> Quick status update about registry of "IGP Algorithm Type For Computing 
> Flooding Topology"
> https://www.iana.org/assignments/igp-parameters/igp-parameters.xhtml#algorithm-type-computing-flooding-topology
>  
> <https://urldefense.com/v3/__https:/www.iana.org/assignments/igp-parameters/igp-parameters.xhtml*algorithm-type-computing-flooding-topology__;Iw!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rYgTRGZa$>
>  
> DE's have been found. Many thanks to Tony Li and Peter Psenak for 
> volunteering to serve as IANA designated expert
> Registry reference updated towards rfc9667
>  
> Let me know if any other action is requested?
>  
> Be well,
> G/
>  
>  
> From: Gunter van de Velde (Nokia) <[email protected] 
> <mailto:[email protected]>>
> Sent: Tuesday, May 19, 2026 6:20 PM
> To: Yingzhen Qu <[email protected] <mailto:[email protected]>>
> Cc: Les Ginsberg (ginsberg) <[email protected] <mailto:[email protected]>>; 
> Acee Lindem <[email protected] <mailto:[email protected]>>; Tony 
> Przygienda <[email protected] <mailto:[email protected]>>; lsr 
> <[email protected] <mailto:[email protected]>>; lsr-chairs <[email protected] 
> <mailto:[email protected]>>; Hannes Gredler ([email protected] 
> <mailto:[email protected]>) <[email protected] <mailto:[email protected]>>
> Subject: Re: [Lsr] Re: Request for temporary assignements of code4points 
>  
> Thanks for the progress.
> I am actively working with IANA to resolve the missing expert's issue for the 
> "IGP Algorithm Type For Computing Flooding Topology" registry. Expert 
> assignments need approval during a formal IESG meeting. 
>  
> G/
>  
> Sent from Outlook for iOS 
> <https://urldefense.com/v3/__https:/aka.ms/o0ukef__;!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rfTd8kAh$>
> From: Yingzhen Qu <[email protected] <mailto:[email protected]>>
> Sent: Tuesday, May 19, 2026 5:54 PM
> To: Gunter van de Velde (Nokia) <[email protected] 
> <mailto:[email protected]>>
> Cc: Les Ginsberg (ginsberg) <[email protected] <mailto:[email protected]>>; 
> Acee Lindem <[email protected] <mailto:[email protected]>>; Tony 
> Przygienda <[email protected] <mailto:[email protected]>>; lsr 
> <[email protected] <mailto:[email protected]>>; lsr-chairs <[email protected] 
> <mailto:[email protected]>>; Hannes Gredler ([email protected] 
> <mailto:[email protected]>) <[email protected] <mailto:[email protected]>>
> Subject: Re: [Lsr] Re: Request for temporary assignements of code4points
>  
>  
> CAUTION: This is an external email. Please be very careful when clicking 
> links or opening attachments. See the URL nok.it/ext for additional 
> information.
>  
> 
> Hi Gunter and all,
> 
> draft-ietf-lsr-flood-reduction-arch is a WG document that has been discussed 
> multiple times in meeting sessions; the WG approves allocating the following 
> code points:
> The IS-IS registry - IS-IS Sub-TLVs for IS-IS Router CAPABILITY TLV
> The OSPF registry - OSPF Router Information (RI) TLVs
>  
> draft-ietf-lsr-distoptflood is requesting a code point from the "IGP 
> Algorithm Type For Computing Flooding Topology" registry, and the WG approves 
> the request. However, the registry is missing experts. This needs to be fixed 
> before the requested code point can be allocated.
>  
> Thanks,
> Yingzhen
>  
> On Mon, Mar 30, 2026 at 11:16 PM Gunter van de Velde (Nokia) 
> <[email protected] <mailto:[email protected]>> wrote:
> Hi Acee, All,
>  
> First thanks to Les for the datapoints and input regarding the request for 
> code points under the IS-IS Sub-TLVs for IS-IS Router CAPABILITY TLV with 
> "Expert Review"
>  
> For "The OSPF registry - OSPF Router Information (RI) TLVs is "IETF Review"" 
> there is the path of RFC7120 early allocation assuming the conditions 
> outlined in section 2 are met.
> In general that boils down to the following:
> 1) The code point specifications  "must be adequately described"
> 2) The specifications must be considered stable
> 3) WG  chairs and AD judge judge that there is sufficient community interest
>  
> Assuming (1) and (2) are confirmed, then similar as with the ISIS request the 
> chairs provide indication (presumably w Acee abstaining as a co-author) of 
> community interest to IANA with an early code point request, and the 
> allocation processing will take place.
>  
> G/
>  
>  
>  
> From: Les Ginsberg (ginsberg) <[email protected] <mailto:[email protected]>>
> Sent: Saturday, March 28, 2026 3:13 AM
> To: Acee Lindem <[email protected] <mailto:[email protected]>>; Tony 
> Przygienda <[email protected] <mailto:[email protected]>>; Gunter van de 
> Velde (Nokia) <[email protected] 
> <mailto:[email protected]>>; lsr <[email protected] 
> <mailto:[email protected]>>
> Cc: lsr-chairs <[email protected] <mailto:[email protected]>>; Hannes 
> Gredler ([email protected] <mailto:[email protected]>) <[email protected] 
> <mailto:[email protected]>>
> Subject: RE: [Lsr] Re: Request for temporary assignements of code4points
>  
> 
> CAUTION: This is an external email. Please be very careful when clicking 
> links or opening attachments. See the URL nok.it/ext 
> <https://urldefense.com/v3/__http:/nok.it/ext__;!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rUBSv1nK$>
>  for additional information.
> 
> 
> 
> Sooo...without trying to be overly formal...
> 
> https://www.rfc-editor.org/rfc/rfc7370.html#section-4 
> <https://urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc7370.html*section-4__;Iw!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rbr8jLeO$>
>  applies...
> 
> Summarizing
> 
> 1)We need a request from the draft authors.
> Let 's consider that requirement met.
> 
> 2)We need an indication from the WG chairs that
> "there is consensus within the Working Group to make the allocation at this 
> time."
> 
> I think once the chairs provide that indication (presumably w Acee abstaining 
> as a co-author) then the Designated Experts (Hannes, Chris, and myself)
> can proceed.
> 
>    Les
> 
> >-----Original Message-----
> >From: Acee Lindem <[email protected] <mailto:[email protected]>>
> >Sent: Thursday, March 26, 2026 10:32 AM
> >To: Tony Przygienda <[email protected] <mailto:[email protected]>>; 
> >Gunter van de Velde (Nokia)
> ><[email protected] <mailto:[email protected]>>; lsr 
> ><[email protected] <mailto:[email protected]>>
> >Cc: lsr-chairs <[email protected] <mailto:[email protected]>>
> >Subject: [Lsr] Re: Request for temporary assignements of code4points
> >
> >+Gunter and LSR list. I'm a co-author so I won't comment.
> >
> >The IS-IS registry - IS-IS Sub-TLVs for IS-IS Router CAPABILITY TLV is 
> >"Expert
> >Review"
> >The OSPF registry - OSPF Router Information (RI) TLVs is "IETF Review"
> >
> >Thanks,
> >Acee
> >
> >> On Mar 26, 2026, at 5:16 AM, Tony Przygienda <[email protected] 
> >> <mailto:[email protected]>>
> >wrote:
> >>
> >> Hey, as indicated in my preso we are at interoping flood reduction and need
> >codepoints by now
> >>
> >> https://datatracker.ietf.org/doc/draft-ietf-lsr-flood-reduction-arch/01/ 
> >> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-ietf-lsr-flood-reduction-arch/01/__;!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rWGIv7nR$>
> >>
> >> needs
> >>
> >> sub-TLV within a Router Capability TLV (242) defined in [RFC7981]
> >>
> >>
> >> and for OSPF
> >>
> >> The Flood Reduction Algorithm TLV is advertised within a OSPFv2
> >> Router Information (RI) Opaque LSA or OSPFv3 Router Information LSA
> >> as defined in [RFC7770]
> >>
> >>
> >>
> >> We will also need an algorithm value for
> >>
> >> https://datatracker.ietf.org/doc/html/draft-ietf-lsr-distoptflood-13 
> >> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-lsr-distoptflood-13__;!!NEt6yMaO-gk!DcwNREgj2zJuBsqmrieUKzYHrx9CnQgrPC9PR1PRvKnJg25mFZcxgR0xi6aExtH6qG3tPm6C3OVhxPGilgwO5L_7rZhmZZxr$>
> >>
> >> IANA is requested to allocate a TBD value in 1-127 range with description 
> >> of
> >"Modified MANET Reduction" further referring to
> >> this document as specification in the "IGP Algorithm Type For Computing
> >Flooding Topology" registry.
> >>
> >>
> >> whereas personally I still think having a separate registry for 
> >> "_Distributed_
> >IGP Algorithm Type For Computing Flooding Topology" would be better
> >>
> >>
> >>
> >> Could you please issue the according calls ?
> >>
> >>
> >> thanks
> >>
> >>
> >> --- tony
> >>
> >>
> >>
> >
> >_______________________________________________
> >Lsr mailing list -- [email protected] <mailto:[email protected]>
> >To unsubscribe send an email to [email protected] 
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