C, VLAN, Pcie, I2c, Linux Kernel, network infrastructure, L1, L2, Routing, L3, Computer Networking, hash memories, STP, carrier network switching, DMA controllers, L2 drivers, MDIO, protocols, L2 Switching, SERDES, Networking OS, Enterprise Data Center, NOS, Marvell Switching Networking products, debugging skills, TCAM