Re: [TLS] TLS Flags and IANA registration policy

[Ilari Liusvaara <[e-mail]>]

On Sat, Oct 23, 2021 at 08:46:56AM +0000, Hannes Tschofenig wrote:
> Hi all,
> 
> https://datatracker.ietf.org/doc/html/draft-ietf-tls-tlsflags gives
> guidance on registering values in the TLS Flags namespace.
> 
> One of the field is the "Recommended" field and it is described as
> follows:
> 
> "
> o  Recommended, which is a Y/N value determined in the document
>    defining the optional feature.
> "
> 
> What does this mean? When do I use a "Y" and when a "N"? What is the
> implication of declaring it as a "N"?

I would presume it is the same as for extensions, which is
described in registry note as:

"If an item is not marked as 'Recommended', it does not necessarily mean
that it is flawed; rather, it indicates that the item either has not
been through the IETF consensus process, has limited applicability, or
is intended only for specific use cases."



-Ilari