Segment Routing accomplishes the same thing as MPLS, but is less complex, extremely robust and can be scaled without any limitations.

Segment Routing Traffic Engineering or SR-TE in conjunction with Automated Steering dramatically simplifies the Traffic Engineering configuration model and eliminates the RSVP soft state requirement, in favor of a Source Packet Routing model also known as SPRING.

The primary goal of Metro Fabric Architecture is to provide a flexible and scalable model that can help service providers and other large organizations better meet bandwidth demand while delivering services to customers faster and more efficiently.