>> if we do hierarchical LIN6-ID assignment, allocation efficiency will
>> follow RFC1715 H-ratio.
>No, not at all. ID space needs no hierarchy for routing nor allginment
>for CIDR.
>The space will have a few levels of organizaional hierarchy (say,
>country/local_goverment/site). In each level, assignments can be
>tighntly packed and returned ID may be filled.
well, if you assign it hierarchical manner, you cannot pack it that
well. imagine:
- a company asks for IDs,
- one-layer-up entity assigns it 8 bit space (for 256 machines),
- the company actually has only 200 machines and 56 IDs are wasted.
the situation looks exactly the same as the current IPv4 assignment.
itojun
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