Michael Richardson <mcr+i...@sandelman.ca> wrote:
    > Section 4.1 provides for the process to start with a discovery
    > operation.

...

    >      REQ: GET /.well-known/core?rt=ace.est

    > I can see the architectural reasons for why we do that, but I really
    > have to ask why if we really really need this extra round trip.

Having read rfc6690 over again in order to implement this, I am now further
convinced that using this mechanism as a way to shorten the /.well-known/est
to something else is not entirely right.

I can see how a CoAP multicast to /.well-known/core?rt=ace.est ought to
return a list of hosts that support EST, and that EST ought to be returned in
a list of supported interfaces.

I'm less convinced that we ought to be using this mechanism to shorten
/.well-known/est to /est (why stop there? can't we go to /?)
It seems like maybe a 301-like (Moved Permantly) reply from
/.well-known/est/*, but CoAP doesn't have 301 codes....





(weird to me that rfc6690 got published with an informative reference to CoAP,
as WIP... I guess the WG wanted to get it out. I wish our process would let
us update that reference to the RFC, because it confuses the rfc dependancy
process)

    > The alternative is that we either have to use /.well-known/est, or that
    > we wind up standardizing something (maybe /e) that isn't inside
    > /.well-known.

    > Can DTLS compression do better things for us instead?


    > 2) DTLS and HelloVerifyRequest.

    > SHOULD CoAP-EST servers always perform the HelloVerifyRequest state?
    > Again, it's an extra round trip.  Always doing it would simplify the
    > code paths on both ends.



    > --
    > Michael Richardson <mcr+i...@sandelman.ca>, Sandelman Software Works -=
    > IPv6 IoT consulting =-




--
]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        | network architect  [
]     m...@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [

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