Traffic engineering with MPLS in the Internet

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Deriving traffic demands for operational IP networks: methodology and experience (2001, background): “Alternatively, IP tra c could be aggregated to point-topoint demands between edge links or routers in the ISP backbone, an option suggested in [6] in the context of MPLSenabled networks.”
Increasing Internet Capacity Using Local Search (2004, methodology): “Before going bankrupt, Global Crossing [ 37 ] attempted such use of MPLS though using a simple non-optimal greedy heuristic to select paths between sources and destinations so as to satisfy a conservative estimate of the demands.”
Hybrid SDN Networks: A Survey of Existing Approaches (2018, methodology): “Moreover, the Cisco report [29] considers the evolution of MPLS networks to MPLSDN hybrid networks that employ MPLS in conjunction with SDN. Turning to the network operator perspective, the report [30] sponsored by AT&T advocated hybrid SDN networks for cloud networks and big data applications.”
Traffic engineering with traditional IP routing protocols (2002, methodology): “For example, MPLS MIBs were used to measure the volume of traffic on the Label Switched Path (LSP) between each pair of edge routers in Global Crossing’s backbone [9].”