[dnssd] Re: DNSSD: DNS-SD discovery for BRSKI and variations

[Toerless Eckert <[e-mail]>]

Thanks, Chris

If the DNS-SD working group is not interested to understand (not even review )
an IETF WG draft which is primarily about how to apply DNS-SD in a scalable
way to an IETF suite of protocols, then i guess i have to ask the DNS-SD
area director how we would ever get DNS-SD expert review review of such a document.

Somewhat strange process....

Suggestions welcome.

Cheers
    Toerless

On Tue, Nov 05, 2024 at 12:44:49PM +0000, Chris Box wrote:
> Toerless,
> 
> The chairs agreed that we would only grant agenda time to this topic if we
> heard there was interest from working group members. As of this point,
> we've not seen any, so the current position is that it won't be on
> Thursday's agenda.
> 
> If any list members want to amend that position, e.g. after seeing your
> slides, please let us know: [e-mail]
> 
> Thanks
> Chris
> 
> On Tue, 5 Nov 2024 at 12:34, Toerless Eckert <[e-mail]> wrote:
> 
> > I've proposed slides for the topic to datatracker.
> >
> > These are the same slides as i'll use for ANIMA:
> >
> > https://datatracker.ietf.org/meeting/121/materials/slides-121-anima-04-brski-discovery-00
> >
> > except that i would of course concentrate @dnssd on the DNS-SD relevant
> > background,
> > details and questions, whereas the ANIMA presentation is focussing  on the
> > diffs over IETF120
> > draft state.  (yes, sorry, slide deck reuse is not ideal...).
> >
> > Cheers
> >     Toerless
> >
> > On Wed, Oct 23, 2024 at 12:41:04AM +0200, Toerless Eckert wrote:
> > > Dear DNS-SD WG
> > >
> > > I was wondering if i could bother you folks in taking a look @ and
> > providing
> > > feedback suggestions 4 our ANIMA-WG draft:
> > >
> > > https://www.ietf.org/archive/id/draft-ietf-anima-brski-discovery-05.html
> > >
> > > This should have a couple of aspects of general interest to DNS-SD
> > enthusiasts, but
> > > also some new concepts.
> > >
> > > If there is interest, i would be happy to present about it at the
> > IETF121 DNS-SD WG meeting.
> > >
> > > BRSKI is the IETF ANIMA secure onboarding protocol for devices, where
> > > for resilience and automation its highly beneficial to discover
> > onboarding
> > > servers (registrars), and in the absence of full routing also proxies
> > for them.
> > >
> > > If this sounds boring, consider that unfortunately several industry
> > groups have diffeent
> > > opinions about protocol details, so we have ended up in a set of
> > variations of the
> > > protocol where not necessarily all servers are compatible with all
> > clients. So this
> > > draft introduces an extensible method to indicate supported variations
> > so clients
> > > can pick the right server. More importantly, proxies can discover all
> > possible
> > > variations even future ones and create appropriate proxy announcements.
> > >
> > > Of course, we want discovery to be fast and resilient, so there is also
> > text about the
> > > details how to select the best server based on prio & weight and time
> > out in case it's
> > > not responding. And how to optimize this in the face of having to do
> > this as a proxy
> > >
> > > If that's not annoying enough, then there is also no consensus on what
> > discovery protocol
> > > is the best, so we have to support DNS-SD, GRASP and CORE-LF... today,
> > tomorrow may be
> > > more, and i really don't want to see specs over specs written for a full
> > matrix, so the
> > > draft also attempts to reduce this problem into a cross-discovery
> > mechanism IANA registry,
> > > so that we hopefully can easily define extensions mostly only through
> > additional registrations
> > > in that registry. Which might also be a concept for other protocols with
> > similar interop issues.
> > >
> > > If thats' not enough, we also needed to discover client devices (which
> > we call pledges)
> > > via DNS-SD by their serial number, so we had to define a scheme by which
> > we do
> > > that, which is also described.
> > >
> > > So, if any of this sounds like an interesting application use of DNS-SD
> > that you'd
> > > like to check out as DNS-SD folks, please do so!
> > >
> > > Cheers
> > >     Toerless
> > >
> >
> > --
> > ---
> > [e-mail]
> >

-- 
---
[e-mail]