How Do I Implement Spanning Trees?

By default, Spanning Tree is both enabled globally and on all ports. The design of the Spanning Tree protocol and the default configuration values on these devices make user configuration unnecessary in order to add redundant ports to your network. You will want to make configuration changes to select a root bridge, take advantage of Multiple Spanning Tree, or use any of the advanced features described below. Before configuring STP it is important to understand how it works.