Hi Aijun,

The chairs have declared rough consensus on this issue, you need to stop repeat 
posting this to the WG mailing list. Please respect the IETF process.

Thanks,
Chris.
[as wg-chair]

> On Nov 1, 2024, at 23:00, Aijun Wang <wangai...@tsinghua.org.cn> wrote:
> 
> Hi, Chris:
> 
> Until now, I haven’t heard you, and also other experts for the technical 
> analysis of UPDATED big-TLV 
> solution(https://datatracker.ietf.org/doc/draft-wang-lsr-isis-big-tlv/)
> 
> Lack of such technical analysis, any subjective conclusion is untenable.
> 
> It’s same as declaring again and again the MP-TLV can solve the problem, even 
> in short term.
> 
> If possible, I can argue with the authors, or you Chairs for the unsolved 
> issues that existing in MP-TLV proposal face to face during the IETF 121 
> meeting time.
> 
> Aijun Wang
> China Telecom
> 
>> On Oct 31, 2024, at 21:24, 【外部账号】Christian Hopps <cho...@chopps.org> wrote:
>> 
>> Hi Aijun,
>> 
>> [as wg-member] Please see Henk Smit’s response. I fully support what he 
>> said. We have a short term solution that the WG agrees is sufficient, and it 
>> is explicitly not Big TLV. Likewise container TLVs are not a long-term 
>> elegant solution.
>> 
>> Thanks,
>> Chris.
>> 
>>> On Oct 28, 2024, at 09:22, Aijun Wang <wangai...@tsinghua.org.cn> wrote:
>>> 
>>> Hi, Chris:
>>> 
>>> Let’s discuss your proposal and Les’s responses more further.
>>> 
>>> First, depending on RFC7356 to solve the potential problem is not 
>>> practicable—You must define all the new types for possible big IS-IS TLV, 
>>> and also their relevant sub-TLVs.
>>> It’s obviously not the candidate solution.
>>> 
>>> On the contrary, the updated Big-TLV 
>>> proposal(https://datatracker.ietf.org/doc/draft-wang-lsr-isis-big-tlv/) 
>>> needs only to define one new generic TLV to solve all possible big-TLV 
>>> problem, and also their sub-TLVs.
>>> 
>>> Second, regarding to Les’s responses at 
>>> https://mailarchive.ietf.org/arch/msg/lsr/iL-3bd3LC9ZfYftZUyky3bWyX4E/:
>>> 
>>> “ This is why some RFCs left the choice in such cases to the implementor.
>>> I mention this only to avoid an argument about trying to retrofit this 
>>> model to codepoints where this choice was not made. It isn’t worth the 
>>> trouble and would instantly render some implementations non-conformant 
>>> without significant benefit.”
>>> 
>>> It’s possible that there are in private negotiation among different vendors 
>>> when there are interoperability issues from such implicit “what constitutes 
>>> a key”, such situations will be deteriorated when these TLV/sub-TLVs are 
>>> sliced according to the MP-TLV proposal.
>>> 
>>> The MP-TLV proposal will amplify such non-conformant issues.
>>> 
>>> It’s time to find one general solution to Big-TLV problem.
>>> 
>>> Aijun Wang
>>> China Telecom
>>> 
>>> 
>>> Aijun Wang
>>> China Telecom
>>>> 
>>>> 
>>>> On Oct 26, 2024, at 20:09, 【外部账号】Christian Hopps <cho...@chopps.org> wrote:
>>>> 
>>>> 
>>>> Hannes Gredler <han...@gredler.at> writes:
>>>> 
>>>>> Why are we having this discussion again ?
>>>>> 
>>>>> My recollection is that we have a “good enough” solution that is
>>>>> deployed and interoperable.
>>>>> If you want the “generic solution” then the 16-bit TLVs described in
>>>>> RFC7356 is the way to go forward and if there is concern about
>>>>> incremental deployment then we should work on this aspect.
>>>> 
>>>> I also believe the 16 bit solution is the way forward if people wish to do 
>>>> any more on this at this point.
>>>> 
>>>> Thanks,
>>>> Chris.
>>>> [as wg-member]
>>>> 
>>>> 
>>>>> 
>>>>> /hannes
>>>>> 
>>>>> 
>>>>> 
>>>>>   On 23.10.2024, at 00:50, Aijun Wang <wangai...@tsinghua.org.cn>
>>>>>   wrote:
>>>>> 
>>>>>   Hi,Chris:
>>>>> 
>>>>>   Please elaborate clearly your technical reviews for the updates
>>>>>   of the newly proposed Big-TLV solution.
>>>>> 
>>>>>   I can copy the updates again at here and state their effects
>>>>>   clearly.(https://mailarchive.ietf.org/arch/msg/lsr/
>>>>>   dxK4Gy1WDR7QCXK6p58xgA0MdUc/ )Please give your analysis before
>>>>>   you make any conclusions:
>>>>> 
>>>>> 
>>>>>   A new version of Big-TLV document has been 
>>>>> posted(https://datatracker.ietf.org/doc/html/draft-wang-lsr-isis-big-tlv),
>>>>>  to try to give the community one general way to solve the Big TLV 
>>>>> problem.
>>>>> 
>>>>>   The main changes from the previous versions are the followings:
>>>>>   1) Add one "Identification" field within the container TLV(type TBD1), 
>>>>> to function as the key for any sliced TLV, and is TLV code point 
>>>>> independent.
>>>>>   2) Add one "Flag" field, define currently the "F" bit to indicate 
>>>>> whether the piece of container is the first piece(F bit is set to 1), or 
>>>>> not (F bit is unset)
>>>>>   3) Put all the sliced pieces within the newly defined container 
>>>>> TLV(type TBD1).
>>>>>   4) Define some rules for the "Split and Glue" procedures(may be 
>>>>> re-optimizer later after the WG discussions)
>>>>> 
>>>>>   The updated version erases the necessity of defining the "key" 
>>>>> information for every IS-IS (Possible Big) TLV code point, and also the 
>>>>> necessity of per-TLV capability announcement.
>>>>> 
>>>>> 
>>>>>   I would like to hear your detail analysis, especially as the WG chairs, 
>>>>> for the above statements.
>>>>> 
>>>>>   Aijun Wang
>>>>>   China Telecom
>>>>> 
>>>>> 
>>>>>       On Oct 22, 2024, at 20:15, 【外部账号】Christian Hopps
>>>>>       <cho...@chopps.org> wrote:
>>>>> 
>>>>> 
>>>>>       Those changes don't appear to address what the WG already
>>>>>       decided against. The view of the WG was that a new Big TLV
>>>>>       for doing this was not going to work. Given the name of this
>>>>>       work is Big TLV, that doesn't seem to have changed. So why
>>>>>       should the WG be spending even more time on a solution they
>>>>>       already discussed, debated and discarded?
>>>>> 
>>>>>       Thanks,
>>>>>       Chris.
>>>>>       [as wg chair]
>>>>> 
>>>>> 
>>>>> 
>>>>>           On Oct 22, 2024, at 06:47, Aijun Wang
>>>>>           <wangai...@tsinghua.org.cn> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>>           Hi, Chris:
>>>>> 
>>>>> 
>>>>> 
>>>>>           No, we have made some significant updates.
>>>>> 
>>>>>           Please refer to https://mailarchive.ietf.org/arch/msg/lsr
>>>>>           /dxK4Gy1WDR7QCXK6p58xgA0MdUc/ for more information.
>>>>> 
>>>>> 
>>>>> 
>>>>>           Aijun Wang
>>>>> 
>>>>>           China Telecom
>>>>> 
>>>>> 
>>>>> 
>>>>>               On Oct 22, 2024, at 17:04, 【外部账号】Christian
>>>>>               Hopps <cho...@chopps.org> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>               Is this the same thing that Huaimo has already
>>>>>               presented to the WG, that the WG decided was not the
>>>>>               way it wanted to go?
>>>>> 
>>>>> 
>>>>> 
>>>>>               Thanks,
>>>>> 
>>>>>               Chris.
>>>>> 
>>>>> 
>>>>> 
>>>>>               "Aijun Wang" <wangai...@tsinghua.org.cn> writes:
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Hi, Yingzhen:
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   I would like to request 10-15minutes to make the
>>>>>                   presentation for the
>>>>> 
>>>>>                   “IS-IS Extension for Big TLV”
>>>>> 
>>>>> 
>>>>> 
>>>>>                   The related information are the followings:
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Draft Name:  IS-IS Extension for Big TLV
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Link:    https://datatracker.ietf.org/doc/
>>>>>                   draft-wang-lsr-isis-big-tlv
>>>>> 
>>>>>                   /
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Presenter: Aijun Wang
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Desired Slot Length: 10-15minutes.
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Best Regards
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Aijun Wang
>>>>> 
>>>>> 
>>>>> 
>>>>>                   China Telecom
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   发件人: forwardingalgori...@ietf.org
>>>>> 
>>>>>                   [mailto:forwardingalgori...@ietf.org] 代表
>>>>>                   Yingzhen Qu
>>>>> 
>>>>>                   发送时间: 2024年10月12日 3:54
>>>>> 
>>>>>                   收件人: lsr <lsr@ietf.org>; lsr-chairs
>>>>>                   <lsr-cha...@ietf.org>
>>>>> 
>>>>>                   主题: [Lsr] IETF 121 LSR Slot Requests
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Hi,
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   The draft agenda for IETF 121 has been posted:
>>>>> 
>>>>> 
>>>>> 
>>>>>                   IETF 121 Meeting Agenda
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   The LSR session is scheduled on Thursday Session
>>>>>                   I 09:30-11:30, Nov 7th, 2024.
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Please send slot requests to lsr-cha...@ietf.org
>>>>>                   before the end of the day
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Wednesday Oct 23.  Please include draft name and
>>>>>                   link, presenter, desired
>>>>> 
>>>>> 
>>>>> 
>>>>>                   slot length including Q&A.
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Thanks,
>>>>> 
>>>>> 
>>>>> 
>>>>>                   Yingzhen
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>   _______________________________________________
>>>>>   Lsr mailing list -- lsr@ietf.org
>>>>>   To unsubscribe send an email to lsr-le...@ietf.org
>>>> 
>>>> <signature.asc>
>>> 
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>> 
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