MPLS Overview

MPLS, or Multiprotocol Label Switching, is a technology used in WAN networks. It operates on a communication architecture that labels data packets for efficient routing. MPLS works by assigning labels to packets at the ingress router, and these labels determine the path the packet will take through the network. MPLS is widely deployed in large-scale networks like enterprises and service providers because it offers efficient and predictable traffic routing.

Some pros of MPLS include its ability to provide QoS guarantees, traffic engineering capabilities, and reduced network congestion. However, it can be expensive to implement and lacks the flexibility and scalability found in some newer technologies like SD-WAN.