Edge Node
Edge nodes are the virtual and physical machines that link local networks to other networks (usually the internet). Your router, for example, is an edge node. They’re the bridges between networks.
Edge nodes do many tasks
While the most common task an edge node does is direct data to the right computer, they also do other things. For example, they might collect and process data. So, in gaming, you might use edge nodes to find out a player’s latency and determine the best server for them to use.