Sweeping Lames - George Michaelson, APNIC Sec. Synopsis All RIRs are aware of the impact of reverse DNS delegations on their membership and the Internet at large. Recently, increased interest in reverse DNS problems has highlighted the large rate of 'lame' (or dysfunctional) reverse DNS. The APNIC secretariat is proposing a model based on work from the ARIN region, which tracks lame DNS registrations, and after suitable notice without repair, de-lists the DNS. This has immediate benefits for the general Internet and especially 'root' DNS services which are subject to excess traffic from these registrations. The mechanism proposed leaves substantive control with the existing resource manager, to re-list their reverse DNS when it is working.