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Randy Bush wrote: >>>> As you are probably aware, I have a feeling that this idea won't be so >>>> popular in JP. >>> wow! why. the goal was simple, to separate the prefix length >>> by which HD is measured from actual assignment size. that is >>> all. why could someone think this bad? i am very confused. >> I'm getting confused here too :-). >> I assumed this was the same proposal as what had been proposed at the >> ARIN last meeting in Montreal. Doesn't it imply to make assignments on >> justifiable basis by one bit? > > s/imply/allow without affecting how hd is calculated/ If that's all it's proposed, I agree that there shouldn't be any concerns as you say, but I'm still not completely clear about this. The concern of some ISPs is that they will be expected to justify their addressing as result of this proposal and lose the benefit of IPv6 networks which are simple network design and operations. I've briefly introduced the proposal on our mailling list and received the comment below: The size of asssignments should be left upto the decision of LIRs, i.e, LIRs can decide whether to sustain /48 or other sizes. In making the decision, LIRs should be able to consider ease of operations and network design, and not solely the efficient utilization of address space. Could we assume this concern is already covered as the decision will be left upto the LIRs/ISPs? izumi
