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Old 25th September 2012, 05:45 PM
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IDN Variant TLD Program

From the Program Plan PDF:

Mirroring Variants Feasibility Study:
One potential treatment of variants is mirroring, whereby two or more labels use some DNS technology (currently a choice between CNAME and DNAME DNS aliasing records)
to ensure they provide the same result in the Domain Name System. (Section 4.1 of the Integrated Issues Report discussed the current limitations of this approach). Due to the distributed nature of the DNS, using these approaches is a complex challenge, as it is difficult to ensure consistency (both vertically and horizontally) throughout the DNS tree. A study was proposed to establish whether it is technically feasible to implement mirroring. Community feedback, including technical feedback, suggested that the final Integrated Issues Report presented enough data to show that mirroring variants is not feasible with the currently available DNS technology.
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