Routing and Switching Expert Witness Services

Dr. Lavian is a routing and switching expert. He earned a Ph.D. from the University of California, Berkeley in Computer Science where he researched and specialized in communication networks. He also has an M.Sc. degree in Electrical Engineering from the Tel Aviv University and a B.Sc. in Computer Science. This deep academic background is complemented by thirty years of industry experience as well as academic research in the fields of telecommunications. Dr. Lavian has applied his background into a routing and switching expert witness practice.

There are cases where analyzing the behaviors of packet switching and routing is an integral part of the litigation. Furthermore, there is a need to understand networking principles, routing algorithms, software and hardware architectures, ASIC, firmware, high-speed backplanes, control plane, data plane, blocking and none-blocking architectures, priority queuing, time-to-live. packet addressing, routing and switching table structures, just to name a few. Dr. Lavian has both the academic background as well as industry experience to analyze and review the technical aspects of routing and switching for patent validity or infringement, and if required in the broader contexts of cloud architectures, Internet protocols, wireless networking and unified communications.

In particular Dr. Lavian an expert on LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, switching, packet switching, layer 2 switching, layer 3 switching, layer 4 switching, routing, gateways, tunneling, as well as the detailed IETF RFC standards defining the relevant functional architectures, protocol specifications as well as forwarding and routing algorithms.

Dr. Lavian served as a Principal Investigator for projects at the Defense Advanced Research Projects Agency (DARPA) of the US Department of Defense, including a research project for the US Air Force Research Lab (AFRL) involving routing and switching in optical SONET and DWDM high-speed networks. As an academic and industrial researcher, he has developed systems and architectures for switches, routers and network management.

Selected Publications in the Field of Routing and Switching

Scientific publications co-authored by Dr. Lavian on the subject of routing and switching: