High Availability and Resiliency Designs, Layer 2 Technologies LAG MC-LAG Virtual Chassis, Data Center Networking, MPLS Segment Routing L2VPN L3VPN, EVPN-VXLAN, Service Provider Architectures, Routing Protocols BGP OSPF ISIS, Multicast NAT GRE IPSec and Security technologies, Network Automation Frameworks, Containerization and Kubernetes, CLOS and Spine-Leaf Architectures, IP MPLS Routing, Python and API-driven Network Automation