- MPLS change network design
- by eliminating the need for an Overlay (full mesh of routers).
- Performance is improved
- because packets are switched instead of routed.
- QoS can be implemented end to end
- by having an PE router classify packets & map a value to the Experimental (EXP) field of the MPLS label stack.
- Traffic Engineering is made possible through label stacking & traffic-engineered tunnels.