display ip int brief view ip address of the interface
display interface brief check brief information about the interface
display current-configuration Displays the current configuration file
display current-configuration keyword (see the configuration keywords)
display saved-configuration display saved configuration file
display ip routing-table routing table
display ospf peer to view ospf neighbor relationship
display ospf lsdb see link relational database
display clock Display the current time
display this view the configuration of the current models, such as knock this command on the interface you can see the information under the current interface