+1

Sent from my iPhone

> On 27.07.2022, at 23:39, Les Ginsberg (ginsberg) 
> <[email protected]> wrote:
> 
> 
> (Preamble: All of what I am going to say I have said many times before – on 
> the list – off the list – in private conversations – in WG meetings…
> I don’t say this to start a discussion with the WG authors – it seems clear 
> that we don’t agree and have no path to agreement.
> My purpose in saying this is to respond to the ongoing existence of this 
> draft and offering my opinion as to what action the WG should take.)
>  
> The mechanism defined in this draft is broken. Not only is it not backwards 
> compatible – the PUA advertisements will be misinterpreted to mean the exact 
> opposite of what is intended i.e., the intent is to signal that a prefix is 
> unreachable, but you do so by using an advertisement which legacy nodes MUST 
> interpret as meaning reachable. This is simply broken and should not be done.
>  
> The authors deserve credit for bringing the attention of the WG to the 
> problem space – but the solution offered is not deployable. Given the long 
> period of time during which this draft has been published and the many times 
> it has been presented/discussed in the WG I think it is now time to say thank 
> you to the authors for their work, but the WG is not interested in adopting 
> this draft.
>  
>    Les
>  
>  
> From: Lsr <[email protected]> On Behalf Of Ketan Talaulikar
> Sent: Wednesday, July 27, 2022 1:36 AM
> To: [email protected]
> Cc: lsr <[email protected]>
> Subject: [Lsr] Comments on draft-wang-lsr-prefix-unreachable-annoucement
>  
> Hello Authors,
>  
> I am sharing some comments on the latest version of this document since we 
> seem to have a packed agenda in LSR this time.
>  
> 1) I notice that in the latest update of the draft, there is a big change to 
> start using LSInfinity for indicating prefix unreachability (similar to 
> draft-ppsenak-lsr-igp-ureach-prefix-announce). I see this as a sign of a 
> degree of convergence between the two drafts.
>  
> 2) However, I then question the motivation of the authors to continue with 
> the bad design of overloading Prefix Originator and the added capability 
> stuff on top. I don't wish to repeat why that design was an absolute NO-GO 
> for me and I am glad to see the authors acknowledge the problem with 
> misrouting by implementations not supporting this specification. So I don't 
> see the point of still retaining all that. 
>  
> Thanks,
> Ketan
>  
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