Re: [sidr] Last Call: <draft-ietf-sidr-rpki-oob-setup-04.txt> (An Out-Of-Band Setup Protocol For RPKI Production Services) to Proposed Standard

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At Fri, 6 Jan 2017 17:15:04 +0000, t.petch wrote:
> 
> Looking some more at this, I would not want to try and troubleshoot this
> protocol with such a limited range of error messages.
> 
> Not something I am likely to be doing but were I to, I would like to see
> an indication of the nature of the error (eg in attribute, element,
> certificate) and where the error was found (the relevant name) and for
> authentication errors, well, look at the certificate related TLS Alerts
> which suggest to me the level of detail that has found to be needed in
> at least some quarters.  And bear in mind that you are making no
> recommendation about most of the certificate options, just that you
> expect them to be the usual ones:-)
> 
> As it is, I would not know where to place most errors into the three
> possibilities provided.

Sort of agree, but....

The <error/> PDU is optional, and in practice has not been used much
to date.  In practice, diagnosing errors generally involves looking in
some server log file, and errors to date have usually been reported
via email or voice.  We included the <error/> PDU because an earlier
reviewer insisted, but we don't have enough experience using with it
to know what kind of detail would really be useful.  That being the
case, my preference would be to leave the schema alone for now and
wait for experience, after which we can revise the protocol if we see
an opportunity for serious improvement.  YMMV.

FWIW, the three current error codes translate, roughly, to:

* "I don't understand what you want me to do";

* "I think I understand what you want me to do and am willing but I
  hit an authorization problem while trying to do it"; and

* "I don't feel like playing this game".

I don't see all that much ambiguity between these three very broad
categories, but I'm also not all that worried about it, because I
don't expect the current simplistic version of the <error/> PDU to
replace two human being having some kind of conversation after looking
at log files.  Again, YMMV.




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