Hi Peter,

For me ok to include as well. (If registration is not included, we shouldn’t 
mention DNS-SD discovery, otherwise.)

You can take a look into 
https://datatracker.ietf.org/doc/html/rfc8995#section-8.6  which is a good 
template how the section should be formatted. (E.g. use lowercase, don’t 
include any optional fields, assignee and contact is IESG, etc.)

Esko

From: Anima <[email protected]> On Behalf Of Peter van der Stok
Sent: Wednesday, December 1, 2021 10:14
To: Brian E Carpenter <[email protected]>
Cc: [email protected]
Subject: Re: [Anima] Constrained-join-proxy: use of DNS-SD discovery of a Join 
Proxy

HI Brian,

thanks, your remark is understood.
However, Esko made the right suggestion that a service name must be allocated 
for DNS-SD.
I think that is independent of your protocol draft.
This draft seems the best place to allocate the service names.

My intention is to write a phrase like:

For later discovery of Join Proxy and Registrar server to Join Proxy, using 
DNS-SD or mdns the service names are allocated in section x.x

section x.x

 Service Name: BRSKI-JP

 Transport Protocol(s): UDP

 Assignee: Peter van der Stok

 Contact: Peter van der Stok

 Description: service name of Join Proxy

 Reference [this document]

 Port Number: to be discovered.

 Known Unauthorized: Uses BRSKI porotocol

 Service Name: BRSKI-RJP

 Transport Protocol(s): UDP

 Assignee: Peter van der Stok

 Contact: Peter van der Stok

 Description: service name of Registrar server to Join Proxy

 Reference [this document]

 Port Number: to be discovered.

 Known Unauthorized: Uses BRSKI porotocol
Agreed?

greetings,

Peter


Brian E Carpenter schreef op 2021-11-30 20:42:
On 01-Dec-21 01:55, Esko Dijk wrote:
While reviewing latest updates; one other issue came up: the draft (re latest 
in Github) currently mentions DNS-SD as a means for a Pledge to discover a Join 
Proxy.

But for DNS-SD discovery I believe a service name is needed; see RFC 6763 
Section 7.  But there’s no service name yet defined for a
Join Proxy.

Easiest solution would be to remove the entire DNS-SD sentence and reference.   
I.e. defer this to a future document.


I think there's another reason for deferring it. We have a pending proposal in 
draft-eckert-anima-grasp-dnssd for how DNS-SD will integrate in an autonomic 
environment. It seems wise to have more clarity about that before defining how 
DNS-SD works for a Join Proxy. The two things may be completely orthogonal, but 
that requires a little thought.

    Brian



If not removed, we probably need to add a service name registration for
Constrained Join Proxy such that it can advertise its service and port over 
DNS-SD/mDNS correctly.

(Note: the above is unrelated to my earlier remark on requiring a service name 
for the Registrar’s JPY protocol support. This could also
be discovered over DNS-SD/mDNS but would need a separate service name.)

Best regards

Esko

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