Label Switching is a technique used in networking, particularly in Multiprotocol Label Switching (MPLS). It involves assigning short labels to data packets, allowing routers to make forwarding decisions based on these labels rather than examining the entire packet. This speeds up the data transmission process and improves network efficiency. In a Label Switching network, when a packet enters the network, it is assigned a label by the first router. As the packet travels through the network, each router reads the label, makes a forwarding decision, and may change the label before passing it on. This method simplifies routing and enhances performance.