Create a vibrant and engaging banner for a networking study group. The banner should feature an enthusiastic Slavic professor with a small manbun teaching students about networking. The scene should be filled with various network equipment such as routers, switches, and cables. Include elements of subnetting calculations on a whiteboard or digital screen in the background. The atmosphere should be dynamic and inspiring, emphasizing collaboration and learning. The design should be modern and visually appealing, capturing the essence of a high-energy educational environment.