This method is fundamental to modern digital communication technologies, including the internet. 

• Data Division into Packets: In packet switching, data is divided into smaller, manageable packets before being transmitted. Each packet contains a portion of the data, as well as information for routing and reassembling the data at the destination.

• Efficient Use of Network Resources: Packets can travel independently across the network and can take different paths to the destination. This dynamic routing makes efficient use of the network’s bandwidth and reduces congestion.

• Robust and Reliable: Packet switching enhances the reliability and robustness of communication. If one path is unavailable or congested, packets can be routed through alternate paths. This also makes the network more resilient to failures and traffic spikes.

• Protocol Use: Common protocols used in packet-switched networks include the Internet Protocol (IP) in the TCP/IP protocol suite. TCP (Transmission Control Protocol) is used alongside IP for reliable delivery, ensuring packets arrive in order and intact.

The advent of packet switching has revolutionized digital communication, enabling the complex and expansive network structures that form the basis of the internet and modern telecommunications.