Support the proposal.

Regards,
- Naiming

> On Feb 1, 2019, at 4:25 AM, Christian Hopps <cho...@chopps.org> wrote:
> 
> 
> Summary of where we are at with dynamic flooding reduction:
> 
> - We have a well written original work that came first and described the 
> problems as well as a TLVs to allow for a centralized solution 
> (draft-li-dyanmic-flooding). We do not need to standardize the centralized 
> algorithm.
> 
> - A small change to this work allowed for distributed algorithms and for 
> outside work on distributed algorithms to continue in parallel.
> 
> - We have another original work that started primarily as a distributed 
> algorithm
>  (draft-cc-ospf-flooding-reduction)
> 
> - Finally we also have:
>  - Cross-pollination of ideas.
>  - Failed attempts at merging.
>  - An authors list "Arms-Race".
> 
> Moving forward:
> 
> - During IETF 103 I proposed we have no conflict if we:
> 
>  1) adopt draft-li-lsr-dyanmic-flooding as the base WG document.
>  2) have authors of draft-cc-lsr-flooding-reduction work on a distributed 
> algorithm as they started with.
> 
> - Acee agreed during the meeting (as chair) that this was the best way 
> forward. We had some agreement form the floor as well.
> 
> - Any good ideas regarding the distribution of a centralized topology can be 
> debated and added (with appropriate attribution) to the base document after 
> we adopt one.
> 
> - This is what happens when we adopt a document as WG work, we work on it.
> 
> - The original authors of the distributed solution can continue to work on 
> their distributed algorithm in a separate document which would also need 
> standardization.
> 
> Does anyone see a serious problem with this path forward?
> 
> Thanks,
> Chris & Acee.
> LSR Chairs.
> 
> Christian Hopps <cho...@chopps.org> writes:
> 
>> We've had the authors of the individual conflicting drafts take a shot at 
>> merging their work.
>> 
>>   This has failed.
>> 
>> Here is the full history (which I also summarized during IETF103 as well). I 
>> will send a second email discussing this.
>> 
>> - Jan 2, 2018 Publication: draft-li-dynamic-flooding and 
>> drfat-li-dynamic-flooding-isis
>>  published centralized solution.
>> 
>> - Mar 5, 2018 Publication: draft-cc-isis-flooding-reduction and 
>> draft-cc-ospf-flooding-reduction
>>  published distributed solution.
>>  - mention of centralized solution asserting it is not good choice.
>> 
>> - IETF 101 (Mar 2018)
>>  - Video: 
>> https://www.youtube.com/watch?v=qHmT4ytMn4w&list=PLC86T-6ZTP5j_HaBNdfPbgxGIp22cnaWS
>>  - Minutes: 
>> https://datatracker.ietf.org/meeting/101/materials/minutes-101-lsr-00
>>  - draft-li-dynamic-flooding-02 presented (1 author). at IETF 101
>>    - Generally well received.
>>  - draft-cc-ospf-flooding-reduction-00 (4 authors) presented.
>>    - Serious problems immediately found during presentation -- not fully 
>> baked.
>> 
>> - Mar 18, 2018 draft-li-dynamic-flooding-03 published (1 author)
>> - Mar 27, 2018 draft-li-dynamic-flooding-04 published (1 author)
>> - Apr 20, 2018 draft-cc-ospf-flooding-reduction-01 revised
>> - Jun 28, 2018 draft-li-dynamic-flooding-05 published (2 authors)
>>  - *SMALL CHANGE TO SUPPORT DISTRIBUTED ALGORITHM*.
>>  - Does not specify distributed algorithm only how to indicate one in use, 
>> small change.
>> 
>> - Jul 2, 2018 draft-cc-ospf-flooding-reduction-02 published
>> 
>> - IETF 102 (Jul 14, 2018)
>>  - draft-li-dynamic-flooding-05 presented.
>>  - draft-cc-ospf-flooding-reduction-02 presented.
>> 
>> - Sep 12, 2018 draft-cc-ospf-flooding-reduction-03 (4 authors)
>>  - *LARGE CHANGE ADDS NEW CENTRALIZED SOLUTION*.
>> 
>> - Sep 20, 2018 draft-cc-ospf-flooding-reduction-04 (4 authors)
>> 
>> - Oct 21, 2018 draft-li-lsr-dynamic-flooding-00 and -01 (5 authors)
>> 
>> - IETF 103 (Nov 3, 2018)
>> 
>>  - Chairs give direction
>> 
>>    - draft-li-lsr-dynamic-flooding-05 having come first, being well written 
>> and not
>>      specifying a distributed algorithm (merely allowing for one) is the 
>> correct vehicle
>>      to adopt as a base document.
>> 
>>    - Distributed algorithm work (the original basis for 
>> draft-cc-ospf-flooding-reduction)
>>      should continue as a separate document form the base which would thus 
>> we have no
>>      conflicts.
>> 
>> - In the meantime the authors try and merge work, this fails.
>> 
>> - Dec 3, 2018 draft-li-lsr-dynamic-flooding-02 (7 authors)
>> 
>> - Dec 10, 2018 draft-cc-lsr-flooding-reduction-00 (4 authors)
>> 
>> - Jan 7, 2019  draft-cc-lsr-flooding-reduction-01 (8 authors)
> 
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