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Re: [sidr] AD Review of draft-ietf-sidr-rpki-oob-setup-04

"Alvaro Retana (aretana)" <aretana@cisco.com> Tue, 20 December 2016 20:55 UTC

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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Rob Austein <sra@hactrn.net>
Thread-Topic: AD Review of draft-ietf-sidr-rpki-oob-setup-04
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Date: Tue, 20 Dec 2016 20:55:25 +0000
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References: <C219759D-6DE4-4B23-95C3-E39156FEAFC2@cisco.com> <20161220173336.DD3B64469FFE@minas-ithil.hactrn.net>
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Cc: Chris Morrow <morrowc@ops-netman.net>, "sidr-chairs@ietf.org" <sidr-chairs@ietf.org>, "draft-ietf-sidr-rpki-oob-setup@ietf.org" <draft-ietf-sidr-rpki-oob-setup@ietf.org>, "sidr@ietf.org" <sidr@ietf.org>
Subject: Re: [sidr] AD Review of draft-ietf-sidr-rpki-oob-setup-04
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On 12/20/16, 12:33 PM, "Rob Austein" <sra@hactrn.net> wrote:



| At Tue, 20 Dec 2016 14:24:27 +0000, Alvaro Retana (aretana) wrote:

| | C1. Why isn?t an IETF namespace [RFC3688] used in the XML schema?  I

| | would strongly suggest that you use one and request it in the IANA

| | Considerations Section.  Unlike the publication protocol, this

| | document specifies version 1 ? which of course doesn?t mean there

| | isn?t a longer history behind it, so I?m open to keeping a non-IETF

| | namespace if that is the case.

|

| There's a longer history behind it :)



Ok, please include some of that in the document.



…

| | C2. Section 4.1. (Common Protocol Elements) says that ?The first XML

| | attribute in each message is a version field.?, and Appendix

| | A. (RelaxNG Schema) reflects that.  However, the examples

| | (throughout the document) don?t reflect the same ordering.

…

| Good catch(es).  If I recall correctly, XML attributes are an

| unordered set, so "first" doesn't really make sense for attributes

| (elements are a different story).  So my text cited in 4.1 is wrong.



Yes, you’re right.  When I looked into it I didn’t notice the difference between attributes and elements.  ☹



I’ll go ahead and start the IETF Last Call.



…

| | C3. In 4.2.2. (<parent_response/>), are the offer and referral

| | elements mutually exclusive?  What happens if the client receives a

| | parent_response with both?  If it is an error, is it considered a

| | syntax-error or something else?  Section 5. (Protocol Walk-Through)

| | offers a hint (?Bob doesn't have to accept Alice's offer, but may

| | choose to do so.?), but the specification is still not clear.

|

| A <parent_response/> containing both an offer and referrals would be

| unusual, but I don't think it's illegal, nor can I think of any reason

| why we should make it illegal.



If it is not illegal, what should the child do?



In Section 5 you hinted at the fact that Bob could choose.  Please make that clear – it would also be a good idea to include some of the considerations that may come into play when deciding.



Thanks!



Alvaro.

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