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 is 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 Patents – Routing and Switching
- US 9,083,728: Systems and methods to support sharing and exchanging in a network
- US 6,976,054: Method and system for accessing low-level resources in a network device
- EP 1,142,213: Dynamic assignment of traffic classes to a priority queue in a packet forwarding device
- CA 2,358,525: Dynamic assignment of traffic classes to a priority queue in a packet forwarding device
- US 20080040630: Time-Value Curves to Provide Dynamic QoS for Time-Sensitive File Transfers
- WO/2005/033899: Method and apparatus for scheduling resources on a switched underlay network
Selected Publications – Routing and Switching
- DWDM-RAM: Enabling Grid Services with Dynamic Optical Networks. Figueira S.; Naiksatam S.; Cohen H.; Cutrell D.; Gutierrez D.; Hoang D.B.; Lavian T.; Mambretti J.; Merrill S.;
- An Extensible, Programmable, Commercial-Grade Platform for Internet Service Architecture. Lavian T.; Hoang D.B.; Travostino F.; Wang P.Y.; Subramanian S.; Monga I.; IEEE Transactions on Systems, Man, and Cybernetics on Technologies Promoting Computational Intelligence, Openness and Programmability in Networks and Internet Services Volume 34, Issue 1, Feb. 2004, pp.58-68.
- Enabling Active Flow Manipulation in Silicon-Based Network Forwarding Engines. Lavian T.; Wang P.; Travostino F.; Subramanian S.; Duraraj R.; Hoang D.B.; Sethaput V.; Culler D.; Proceeding of the Active Networks Conference and Exposition, 2002. (DANCE) 29-30 May 2002, pp. 65-76.
- Intelligent Network Services through Active Flow Manipulation. Lavian T.; Wang P.; Travostino F.; Subramanian S.; Hoang D.B.; Sethaput V.; IEEE Intelligent Networks 2001 Workshop (IN2001), Boston, May 2001.
- Enabling Active Networks Services on a Gigabit Routing Switch. Wang P.; Jaeger R.; Duncan R.; Lavian T.; Travostino F.; 2nd Workshop on Active Middleware Services, 2000.
- Dynamic Classification in Silicon-Based Forwarding Engine Environments. Jaeger R.; Duncan R.; Travostino F.; Lavian T.; Hollingsworth J.; Selected Papers. 10th IEEE Workshop on Metropolitan Area and Local Networks, 1999. 21-24 Nov. 1999, pp.103-109.
- Open Programmable Architecture for Java-Enabled Network Devices. Lavian, T.; Jaeger, R. F.; Hollingsworth, J. K.; IEEE Hot Interconnects Stanford University, August 1999, pp. 265-277.