MPLS(Multiprotocol Label Switching)

This is protocol-agnostic routing technique used in telecommunications networks to speed up and shape traffic flows.
MPLS works by assigning short labels to data packets, which are then used to make forwarding decisions within a network.
Instead of examining the packet's IP header to determine its next hop, MPLS routers simply look at the label and forward the packet based on the information in their forwarding table.
Benefits of MPLS
1. Scalability: MPLS can handle larger and more complex network architectures than traditional network technologies.
2. Improved uptime: MPLS can send data over an alternative path in less than 50 milliseconds.
3. Reduced WAN costs: MPLS WAN allows businesses to give control of routing to the service provider they are with.
4. Increased reliability: MPLS has several routes data can take to be transferred, which lowers the chance of a network crashing or overloading.
5. Fast reroute: MPLS has a feature known as Fast Reroute that enables traffic to be switched to an alternative path very rapidly in the event of downtime.

Packet Flow

mpls