CURRENT_MEETING_REPORT_ Reported by Frank Solensky/FTP Software Minutes of the Address Lifetime Expectations Working Group (ALE) Tony Li and Frank Solensky presented their analyses of the growth rates of the InterNIC's assigned and allocated address space. While the aggregate growth rate in the number assignments haven't changed the depletion dates significantly on the linear model, a substantial increase in the number of allocated Class Cs during March brought the estimated depletion dates in by several years on the logistic model. A lively discussion on what these numbers represent followed and a recommendation was subsequently sent to the IEPG list that preparations be made so that IANA can start allocating portions of the Class A number space. Frank also presented some preliminary results of the IPv4-ALE address survey sent out a few weeks earlier (results given below), designed to ascertain how efficiently number space within network numbers was being utilized and how much could be reclaimed voluntarily. A lively discussion on the feasibility and methodology for reclaiming unused number space followed. The chairs reminded the working group that the charter described the group's function as more of an advisory than a policy making position and agreed to gather more information about the unreserved Class A network numbers which are not currently announced in the routing tables. _________________________________________ | | | | | Class Space | B | C | |_____________________|_________|_________| | | | | | Responses | 45 | 411 | | Addresses in use | 72477 | 11472 | | Efficiency | 2.46% | 10.9% | | Nets willing to | 18 | 81 | | return address bits | 40% | 19.7% | | Address space | 672,512 | 13940.5 | | reclaimed | 22.8% | 13.2% | |_____________________|_________|_________|