Re: [idn] Prohibit CDN code points

[Dave Crocker <dhc@dcrocker.net>]

At 11:37 AM 1/21/2002 -0500, J. William Semich wrote:
>I interpret Mr. Tseng's suggestion differently - that any <ml>.kr could 
>indicate Korean, any <ml>.cn could indicate Chinese (or whatever) and any 
><ml>. jp could indicate Japanese. I think that's what he means by "we 
>assume the ccTLD implied the language used."  Additionally, <ml>.kr.com 
>could indicate Korean, etc.

Bill,

Thank you for the clarification.

As to the proposal itself, and the discussion about it:

Unfortunately, the suggestion to tie character-set interpretation to 
particular TLDs has several basic flaws.  First, it creates considerable 
complexity in the global DNS software.  Second, it makes the incorrect 
assumption that we can know exactly what choices to make.

Chinese in Japan will not be served well by the assumption that all 
characters under .jp are japanese.  Japanese in China will not be served 
well...  And so on.  Both Japanese and Chinese are badly served by this 
rule in Korea, of course.

It also attempts no solution for characters under gTLDs.

In general, threads like the current one are examples of a failure to 
appreciate the complexity of creating special conditions and rules for 
Internet protocols.  Such idiosyncrasies in protocols make them much more 
difficult to implement correctly and usually destroy their ability to scale 
well.

d/

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Dave Crocker  <mailto:dcrocker@brandenburg.com>
Brandenburg InternetWorking  <http://www.brandenburg.com>
tel +1.408.246.8253;  fax +1.408.273.6464