Multi-Protocol Label Switching (MPLS) is a versatile solution to address the problems faced by present-day networks—speed, scalability, quality-of-service (QoS) management, and traffic engineering. MPLS involves setting up a specific path for a given sequence of packets, identified by a label put in each packet, thus avoiding complex lookups in a routing table.
Here are some resources to help you learn MPLS
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by Edgar C Francis
