Re: [Last-Call] Last Call: <draft-gont-numeric-ids-sec-considerations-06.txt> (Security Considerations for Transient Numeric Identifiers Employed in Network Protocols) to Best Current Practice

[Martin Thomson <[e-mail]>]

On Thu, Dec 17, 2020, at 20:42, Fernando Gont wrote:
> FWIW, our argument is essentially that if constancy is not required in a 
> given context, then you should generally avoid it. i.e., 
> "unlinkability", where possible, should be the default.

I'm not sure that this is sufficient if it means uncoordinated changes, or that that works in every context. This says nothing about cross-layer coordination or managing trade-offs at different layers.

This is another reason to avoid making such strong recommendations.  I sympathize with the sentiment, but as a general statement I can't support this recommendation.  Capturing this as a goal and explaining the consequences of not achieving it should suffice.