TE and MPLS TE

Network congestion can degrade the network backbone performance. It might occur when network resources are inadequate or when load distribution is unbalanced. Traffic engineering (TE) is intended to avoid the latter situation where partial congestion might occur because of improper resource allocation.

TE can make the best use of network resources and avoid uneven load distribution by real-time monitoring of traffic and traffic load on network elements and dynamic tuning of traffic management attributes, routing parameters, and resources constraints.

MPLS TE combines the MPLS technology and traffic engineering. It reserves resources by establishing LSP tunnels along the specified paths, allowing traffic to bypass congested nodes to achieve appropriate load distribution.

MPLS TE features simplicity and good scalability. With MPLS TE, a service provider can deploy traffic engineering on the existing MPLS backbone to provide various services and optimize network resources management.