Hi David, * David Monosov <davidm@futureinquestion.net>
The last /8 allocation criteria is there to ensure an orderly transition is possible for as long as possible, and the fact we now expect it to last longer than originally anticipated is further demonstration of its efficacy.
I'm not really certain if we can expect it to last longer than originally anticipated, even. I suppose it depends on what one anticipated in the first place. I anticipated (or hoped, rather) for a duration of about 10 years. The best analysis of its remaining lifetime that I'm aware of is the recently published RIPE Labs article¹ which suggests a remaining lifetime of approx. ~5½ years (and this includes future piecemeal allocations from IANA and expected returns from the membership). [1] https://labs.ripe.net/Members/wilhelm/ipv4-in-the-ripe-ncc-service-region-th... If accurate, that would mean the total lifetime of the somewhat misleadingly named «last /8» policy would end up being ~8½ years. 1½ years less than the 10 I had originally hoped for. There is no doubt that 2015-05 would reduce the remaining life expectancy of the «last /8» policy even further. Considering that the "last /8" is already expected to last for a shorter time than what I had hoped for, I cannot support 2015-05. Tore