> 6.5.1.  Discovery
> 
>    The Pledge discovers an IP address and port number that connects to
>    the Registrar (possibly via a Join Proxy), and it establishes a DTLS
>    connection.

This is very terse and possibly not completely correct. 

How about:

   The Pledge discovers an IP address and UDP port number which together allow 
the
   pledge to establish a DTLS connection to the Registrar, directly via a UDP
   port of the Registrar or via a UDP port of a BRSKI-DTLS Join Proxy.

Is this a correct expansion ?

But the discovery itself is described in 
draft-ietf-anima-constrained-join-proxy,
right ? E.g.: it could involve either directly discovering brski.rjp if there
is no join proxy or discoverin brski.jp if there is a join proxy. True ?
Would be good to at least provide an appropriate pointer that describes this. 
And
i am not sure that  draft-ietf-anima-constrained-join-proxy actually describes 
how
a pledge would use either brski.jp or brski.rjp... ?

>    No further discovery of hosts or port numbers is required, but a

beyond the discovery described in the prior paragraph ? Would suggest to
either remove this part of the sentence or add more details. As it stands it
is like be inserting into this email: It is not required to send toerless 
chocolade.
(huh, why the heck does toerless mention this - what other cases are there
 where toerless would actuallt expect chocoade. why does he mention it.. ?)

>    pledge that can do more than one kind of enrollment
>    (future work offers protocols other than [I-D.ietf-ace-coap-est]),
>    then a pledge may need to use CoAP Discovery to determine what other 
> protocols are
>    available.

If the solultion os CoAP Discovery, then it seems the problem should maybe also
be rewritten to "pledge that can do more than one kind of enrollment mechanism 
using CoAP".

I of course would equally be worried about a pledge that could not ONLY do CoAP
based enrolments but also other enrollments, for which CoAP discovery would not
help, so when you open the box of alternative pandoras, i wonder why you 
explicitly
only discuss CoAP discovery. Some explanation might help for the text to avoid
raising questions it doesn't answer.

>    A Pledge that only supports the EST-coaps enrollment method SHOULD
>    NOT use discovery for BRSKI resources.  It is more efficient to just

Confused. Do i translate this correctly to say "do not use brski.jp/brski.rjp 
discovery
from anima-constrained-join-proxy" ?

Cheers
    Toerless

>    try the supported enrollment method via the well-known BRSKI/EST-
>    coaps resources.  This also avoids the Pledge doing any CoRE Link
>    Format parsing, which is specified in [I-D.ietf-ace-coap-est],
>    Section 4.1.
> 
-- 
---
t...@cs.fau.de

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