MPLS traffic engineering

When applied to an MPLS network, traffic engineering (TE) is the process of steering traffic across the MPLS backbone network in such a way as to maximize the efficient use of available bandwidth between routers.

In MPLS TE implementations, the Resource Reservation Protocol (RSVP) is most often used to implement QoS for signaling purposes and resource allocation for TE sessions.

Links:

https://networklessons.com/mpls/introduction-to-mpls-traffic-engineering-te