Hi, This is my first post to sig-policy, so be gentle :-) We're an ISP in Australia who are in the process of productionising our dual stack trial. We've run into this kind of issue where a /32 does run into issues for us allocating /48s to customers and have looked at allocating less to them. (We obtained the /32 back before most of these policies existed and when we were much smaller). We have a /32 and approx 250k customers which clearly isn't enough (65k /48s). But /56s as per the current policy with HD ratios (http://www.apnic.net/policy/ipv6-address-policy#5.3) in 5.3.1 means we do have enough but are in a bit of a gray space (16M /56s) as we do have a reasonable number of customers who match the /48 allocation policy. We have 11 serving sites for the bulk of our broadband customers. The largest terminates approximately 50k customers. As I understand it this means: X=4 Y=20 (50k * 4/3 is slightly more than 65k (2^16) so becomes 20) N=48-(4+20) = 24 Which gives us 16M /48s assuming my ability to use basic maths hasn't degraded that much :-) Effectively this means we can allocate /48s to all customers. This would mean a much easier allocation strategy for us and allow us to allocate to customers space as they expect. I can't see we'd ever come back for another allocation (more efficient in the global table). MMC On 12/01/2011, at 9:29 PM, Gaurab Raj Upadhaya wrote:
-- Matthew Moyle-Croft Peering Manager and Team Lead - Commercial and DSLAMs Internode /Agile Level 5, 150 Grenfell Street, Adelaide, SA 5000 Australia Email: mmc at internode dot com dot au Web: http://www.on.net Direct: +61-8-8228-2909 Mobile: +61-419-900-366 Reception: +61-8-8228-2999 Fax: +61-8-8235-6909
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