MPLS stands for Multi-Protocol Label Switching. What is MPLS? It is a mechanism for routing traffic within a telecommunications network, as data travels from one network node to the next. MPLS can provide applications including VPNs (Virtual Private Networks), traffic engineering (TE) and Quality of Service.
MPLS is a widely deployed, reliable and secure technology for building a fixed-path VPN over an IP network between a set of branch offices and data centers. Modern networks, however, increasingly demand not only the agility to steer traffic to a variety of cloud-based and SaaS sites outside the traditional VPN, but also much quicker and more cost-effective deployment capability.