- Traffic Engineering: Manipulating traffic to fit to the available network resources.
- In Traffic Engineering, simply tweaking the IP metrics on interfaces.
- Traffic engineering with MPLS is the best of connection-oriented traffic engineering techniques (such as ATM PVC placement) & merge them with IP routing.
- MPLS is an integration of Layer2 & Layer 3 technologies.
- MPLS enables Traffic Engineering, by making Layer 2 feature available to Layer 3.