[Add] Resolver Information Discussion

["Deen, Glenn" <[e-mail]>]

Hi ADD,

The chairs have been reviewing the deliverables in the ADD charter as well as the direction the ADD outputs have taken and we think it’s a good time to start a discussion in the group on the direction the group want to take on the topic Resolver Information.

As originally envisioned by proponents when the ADD charter was drafted,  the consensus was  that the ADD group would not work on server selection logic or policy choices followed in choosing which DNS resolver(s) to select it would take on producing a mechanisms for how resolvers would communicate to the clients doing the decision making the needed information to make a decision.

We even included the following deliverable in the charter….

           From the ADD Charter:
         - Define a mechanism that allows communication of DNS resolver
          information to clients for use in selection decisions. This could be
          part of the mechanism used for discovery, above.


However, with the exception of the draft  “draft-reddy-add-resolver-info”[1] there has not been much activity in the group on this mechanism.

DDR[3] and DNR[2] and SVCB-DNS[4] have taken approaches which do not include passing of additional resolver information beyond the technical connection details.  This is well short of the broader range of meta information to make selection decisions as was originally envisioned.

In light of this, the opening in what we expect will be a discussion that will start now and be a big part of the ADD session at IETF 114 is – what is the direction the group feels should be taken with regard to Resolver Information.

Has the base design gone in a different direction than originally considered to the point where extended information about resolvers is no longer of interest to clients?

Is Resolver Information an area that is still of interest to the group?

regards
ADD Co-chairs Glenn Deen, David Lawrence


Refs
[1]  https://datatracker.ietf.org/doc/draft-reddy-add-resolver-info/
[2] https://datatracker.ietf.org/doc/draft-ietf-add-dnr/
[3] https://datatracker.ietf.org/doc/draft-ietf-add-ddr/
[4] https://datatracker.ietf.org/doc/draft-ietf-add-svcb-dns/