Figure 1 describes some of the options for the show command that are helpful in verifying common configurable switch features.

Figure 2 shows sample abbreviated output from the show running-config command. Use this command to verify that the switch has been correctly configured. As seen in the output for S1, some key information is shown:

The show interfaces command is another commonly used command, which displays status and statistics information on the network interfaces of the switch. The show interfaces command is frequently used when configuring and monitoring network devices.

Figure 3 shows the output from the show interfaces fastEthernet 0/18 command. The first line in the figure indicates that the FastEthernet 0/18 interface is up/up meaning that it is operational. Further down the output shows that the duplex is full and the speed is 100 Mb/s.