Switches maintain a database of MAC addresses, both manually configured (static) and dynamically learned entries. During troubleshooting, it may be helpful to investigate the entries in the MAC table.
To view the whole MAC table, use the following command from enable mode:
To list only the dynamically learned entries in the MAC table, use the following:
show mac-address-table dynamic
Quinn was one of the original co-founders of Tech-Recipes. He is currently crafting iOS applications as a senior developer at Small Planet Digital in Brooklyn, New York.