Re: [regext] WG LAST CALL: draft-ietf-regext-unhandled-namespaces-03

Thomas Corte <Thomas.Corte@knipp.de> Tue, 27 October 2020 15:55 UTC

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From: Thomas Corte <Thomas.Corte@knipp.de>
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Subject: Re: [regext] WG LAST CALL: draft-ietf-regext-unhandled-namespaces-03
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Hello,

On 10/27/20 15:37, Gould, James wrote:

> A compromise is to formally define the original intent of the <extValue> element, as defined in RFC 5730, and be explicit that draft-ietf-regext-unhandled-namespaces extends its usage to cover this use case within section 3 "Use of EPP <extValue> for Unhandled Namespace Data".  To address the concern for the client potentially ignoring the content returned by the server per draft-ietf-regext-unhandled-namespaces, text could be added to recommend that the server monitor for the usage of draft-ietf-regext-unhandled-namespaces in both General EPP Responses and Poll Message EPP Responses to inform the client out-of-band of their lack of support for a particular extension.  In addition, it could be recommended for the client to monitor for the usage of draft-ietf-regext-unhandled-namespaces to proactively identify extensions that they need to add support for.   An Implementation Considerations section could be added for this.  Thoughts to this compromise?

Sounds reasonable to me. With the current EPP RFCs, there's really no
"100% clean" solution here, but the approach makes a good effort to
somehow convey that there's data available without disrupting client
implementations.

If a registry really wants registrars to understand and process their
custom poll messages, it can still resort to simply reject the <login>
command if it doesn't contain the namespace in question.

Best regards,

Thomas

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