[regext] Re: [IANA #1450701] INSERT – IDN EPP Extension for the CNNIC Registration System

[Gavin Brown <[e-mail]>]

Hi David,

Please proceed with this registration, but change the "Document Status" to "Other".

Please also advise the registrant that IETF namespaces (such as those starting with "urn:ietf:") should not be used by non-IETF specifications, so they should consider using a private namespace instead. Please also let them know that if they do change the namespace in the specification, they don't need to require an update the registration in the registry.

Thanks,

Gavin.

> On 22 Apr 2026, at 8:46 pm, David Dong via RT <[e-mail]> wrote:
> 
> Hi Gavin,
> 
> As the designated expert for the Extensions for the Extensible Provisioning Protocol (EPP) registry, can you review the registration proposal below? 
> 
> If it's OK, we'll make the assignment at:
> 
> https://www.iana.org/assignments/epp-extensions/ 
> 
> It looks like they're trying to use 'urn:ietf:params:xml:ns:cdn-1.0'; I don't see anything on the urn mailing list requesting for their own URN and this doesn't seem to be an IETF-controlled space. Happy to pass along any feedback you have for them if you'd like to suggest for them to use their own URI (like the CORE and the TANGO registrations).
> 
> The IESG has asked us to request that reviews be returned within two weeks, which in this case would make the due date May 6th. 
> 
> With thanks,
> 
> David Dong
> IANA Services Sr. Specialist
> 
> On Wed Apr 22 07:15:14 2026, [e-mail] wrote:
>> Dear IANA team,
>> 
>> Please disregard all previous emails; the content of this message
>> shall prevail.
>> 
>> We are writing to formally request the review and registration of a
>> new Extensible Provisioning Protocol (EPP) extension in accordance
>> with the procedures specified in RFC 7451. This extension is designed
>> to enhance the functionality of EPP in supporting IDN, and it has been
>> fully implemented and deployed in our production environment.
>> 
>> Below is the complete information of the EPP extension to be
>> registered, in line with the registration requirements outlined in RFC
>> 7451 Section 2.2.1:
>> 
>> -----BEGIN FORM-----
>> Name of Extension:
>> "IDN EPP Extension for the CNNIC Registration System"
>> 
>> Document Status:
>> Informational
>> 
>> Reference:
>> https://ngboss.ngtld.cn/EN/view/noside/cnnic-idn-epp-extension-1.0.html
>> 
>> Registrant Name and Email Address:
>> China Internet Network Information Center (CNNIC), <[e-mail]>
>> 
>> TLDs: Any
>> 
>> IPR Disclosure: None
>> 
>> Status: Active
>> 
>> Notes: None
>> -----END FORM-----
>> Attached documents for your review:
>> 
>> cdn-1.0.xsd – XML Schema definition file
>> cnnic-idn-epp-extension-1.0.html – Specification: IDN EPP Extension
>> for the CNNIC Registration System
>> Proof of Deployment.docx – Official proof of deployment in production
>> environment
>> Registration Form for IDN Epp Extension.txt – Completed registration
>> form in accordance with RFC 7451
>> 
>> 
>> 
>> [e-mail]

--
Gavin Brown
Principal Engineer, Global Domains & Strategy
Internet Corporation for Assigned Names and Numbers (ICANN)

https://www.icann.org