What's dual lan for?
What's dual lan for?
You can link two gigabit connections, but they won't always sum to a full 2 gigabit. Unless your internet is faster than symmetrical gigabit, this won't boost your overall speed. It will raise the maximum speeds possible between devices on your local network.
You might link a NAS unit to a dedicated network link with your second Ethernet interface. The initial Ethernet card can handle standard internet traffic from your ISP. One port can establish a direct link to another PC, bypassing a switch. For instance, you could transmit game streams and capture screenshots via the private network card to another machine, while the first card processes only game data packets for faster performance. A second port is often used in servers... picture ten servers each managing downloads, images, websites, with users randomly directed to any of them based on load. These servers could connect to a switch that routes to the Internet, and also maintain a private network between them through a second switch. If a user uploads a photo to a forum post, it might travel through the private network to all servers for local copies or be sent to a specific server to generate thumbnails, etc., without needing the switch that provides Internet access to the servers.