Label Switch Router

A Label Switch Router (LSR) is a device used in networking that helps route data more efficiently. It operates within a system called Multi-Protocol Label Switching (MPLS), which tags data packets with short labels instead of analyzing the entire packet header. This labeling allows the LSR to make quick forwarding decisions, improving the speed and efficiency of data transmission over a network. Think of it as a traffic manager that uses simple labels to direct data along the best routes, ensuring that information gets to its destination quickly and reliably.