# rstp calculator

non-root bridges need to find the shortest path to the root bridge. in the picture above we have a larger network with multiple switches. sw1 on top is the root bridge so all other switches are non-root and need to find the shortest path to the root bridge. spanning-tree uses cost to determine the shortest path to the root bridge. the path with the lowest cost will be used to reach the root bridge. this is where each switch will …