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ATCCore RoutingNetworking
WWT Research • Maturity Model
• August 4, 2025 • 7 minute read

Segment Routing Maturity Model

Our Segment Routing Maturity Model provides a structured framework for moving from legacy routing to intent-based, automated traffic management. Discover where your organization stands today and how you can level up.

From standard routing to segment routing: The evolution of the core network

Segment routing is one of the most transformative technologies in modern carrier networks. Not only does it offer enhanced resiliency, simplified traffic engineering and programmable control, but it accomplishes these things all without the overhead of legacy protocols like LDP and RSVP-TE.

For most organizations, the question isn't why to adopt segment routing but rather how to do it in a way that aligns with their existing skillsets, infrastructure and business goals. 

Our Segment Routing Maturity Model outlines key stages of adoption, helping core network operators chart a path toward a fully orchestrated segment routing deployment. 

All the levels of the WWT Segment Routing Maturity Model.

Our model 

Segment routing offers value at every phase of adoption, from instant resiliency gains to eventual orchestrated programmability. 

Our model isn't about reaching the highest level as quickly as possible, but rather about aligning your segment routing deployment to your organizational goals.

For some organizations, this may mean simply enabling segment routing and little else; for others it will mean utilizing the full breadth of segment routing capabilities.  

No matter where you are today, remember that the end goal is to use segment routing to incrementally improve your network resilience and performance.

Level definitions

0: Absent: Segment Routing is not present. The network relies on legacy IP/MPLS or RSVP-TE mechanisms for forwarding and route protection.

1: Enabled: Segment Routing is activated within the IGP, unlocking TI-LFA for immediate Fast Reroute benefits with minimal effort.

2: Engineered: Traffic Engineering policies are introduced using SR-TE, allowing for controlled, constraint-based forwarding.

3: Diversified: Advanced services like disjoint path protection, BGP EPE, and Flexible Algorithms are used to differentiate service classes and enhance resiliency.

4: Orchestrated: A centralized controller or SR-PCE manages policies programmatically, enabling dynamic, intent-based routing and automation.

"WWT Research reports provide in-depth analysis of the latest technology and industry trends, solution comparisons and expert guidance for maturing your organization's capabilities. By logging in or creating a free account you’ll gain access to other reports as well as labs, events and other valuable content."

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