At 3:39 PM -0800 2/19/08, David Conrad wrote:
Perhaps we could agree that not doing something until it is too late would be bad?
Absolutely. Quite a few things are being done (hopefully not too late) including looking into a more flexible transfer policy and encouraging return of IP space which is no longer needed. You asked what "incentive to a holder of early allocations is there to return address space voluntarily?" The first answer ("it's the right thing to do") has clearly worked in some cases). A second answer ("because it's required by RFC 2050 if the addresses are not needed") is also available, presuming that the community wish that to be the rule. As you stated quite clearly, ultimately the control is vested in the ISPs who decide what is routed or not routed. /John