On Dec 1, 2012, at 6:09 AM, Jeroen Massar wrote:

> Japan and South Korea are doing quite well indeed

I guess that depends upon how one defines 'quite well', heh.  They're certainly 
ahead of other countries in the region with regards to IPv6, but it's 
questionable how deeply/broadly it is both available and utilized by their user 
bases.  And AFAICT, the emphasis is on clients, not servers.

> and China has CERNET of course which is doing mostly IPv6.

But which does not serve China's user base.

> Can you divulge some of these hurdles? Would be interesting to know what they 
> are running into.

Architectural issues, operational issues, educational issues, organizational 
issues, resiliency issues, scalability issues, security issues, economic 
issues, layer-8, etc.  If one encounters significant challenges in designing, 
building, and operating an IPv4 network, one is unlikely to expend a 
significant amount of time and resources on IPv6.

-----------------------------------------------------------------------
Roland Dobbins <rdobb...@arbor.net> // <http://www.arbornetworks.com>

          Luck is the residue of opportunity and design.

                       -- John Milton


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