computer networking

Issuing commands on a router or switch can provide insight into the internal structure of the network. For example, issuing the 'show running-config' command can provide information such as the type of device, IP addresses, routing protocols being used, and VLANs. The 'show interfaces' command can provide information such as the status of the interface and details on the packets entering and leaving the interface. The 'show ip route' command can provide detailed information on the route table and the type of routing protocol being used. Finally, the 'show arp' command can provide information on the MAC address of each device connected to the router or switch.