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Cisco Crosswork Optimization Engine 2.0 with NSO 5.4.2 v1

June 2021

The Segment Routing Path Computation Element (SR PCE) is a feature of IOS-XR. The Crosswork Optimization Engine is an application that provides a user interface for the Segment Routing PCE. The Crosswork Optimization Engine displays the real-time network state including topology and traffic information as well as information on Segment Routing policies and the path of the SR Policies traverse through the topology. In addition, the Crosswork Optimization Engine can be used to create new PCE initiated policies that have a defined path or dynamic path optimized for IGP metric, TE metric, or delay. The Crosswork Optimization Engine is an application that leverages the Cisco Crosswork infrastructure and micro-service architecture.


  • Scenario 1. Introduction to the Crosswork User Interface
  • Scenario 2. Deploy SR-TE Policy from Crosswork
  • Scenario 3. Deploy an SR-TE Policy from NSO
  • Scenario 4. Use NSO to Deploy an L3VPN (SR On-Demand Next-Hop)
  • Scenario 5. Observe Topology Changes
  • Scenario 6: Local Congestion Mitigation (LCM)
  • Scenario 7. Bandwidth-on-Demand and Bandwidth Optimization Feature Packs
  • Scenario 8. REST API – Verify Inventory and Topology
  • Scenario 9. REST API – Create Dyanamic SR-TE Policies
  • Scenario 10. REST API – Deploy Explicit SR-TE Policy
  • Scenario 11. REST API – Get Plan from Optimization Engine
  • Scenario 12. RSVP-TE Deployment and Visualization