High-availability service architectures for mail, web, and DNS hosting. Service distribution using anycast.


ISP core network design and operations. Operational team-building, practical change control and network documentation strategies that work.

IPv6 deployment in core and access networks. Developing peering strategies that make sense; measurement and management of high-volume, aggregated access networks.


Consensus-building in diverse technical groups. Cat-herding. Bear-baiting.


Anycast distribution of the F- and L-Root servers.

Design and implementation of DNS service platforms for prominent top-level domains.


Design and implementation of systems and processes for the deployment of DNSSEC in the root zone, in the ORG zone and the CA zone.

DNSSEC deployment in the IN-ADDR.ARPA and IP6.ARPA zones.

Technical Training

Technical training at many venues around the world, in association with ISOC and NSRC.