MPLS (Multiprotocol Label Switching) is a high-performance routing technique that directs data across a network using labels instead of traditional IP routing. It enhances speed, scalability, and efficiency by allowing packets to follow predefined paths, reducing the need for complex lookups at each hop. MPLS operates between Layer 2 (Data Link) and Layer 3 (Network), making it a hybrid technology suitable for creating VPNs, traffic engineering, and QoS (Quality of Service). Commonly used by ISPs and large enterprises, MPLS ensures reliable and optimized data transmission across WANs (Wide Area Networks) while supporting various protocols like IP, Ethernet, and ATM. Learn more: https://en.wikipedia.org/wiki/MPLS