tree: f65710b08443a9d753b5069727a3f06889532adc [path history] [tgz]
  1. .gitignore
  2. Makefile
  3. README.md
  4. SUMMARY.md
  5. Service.png
  6. ServiceChain.png
  7. book.json
  8. contribute_docs.md
  9. core_models.md
  10. dev/
  11. examples.md
  12. install.md
  13. intro.md
  14. mdl_relaxed.rb
  15. mdl_strict.rb
  16. migrate_4.0.md
  17. modeling_conventions.md
  18. modules/
  19. platform.md
  20. repo.md
  21. scripts/
  22. security_policies.md
  23. static/
  24. swagger/
  25. tutorials/
  26. use.md
  27. venv-xosdocs.sh
  28. vtn-xos.jpeg
  29. xos_internals.md
  30. xos_vtn.md
docs/README.md

XOS Overview

XOS provides a framework for defining a set of declarative models and then using those models to manage a collection of components that have been configured into an operational system. XOS is itself deployed as a set of micro-services, collectively forming a ControlPlane-as-a-Service that:

  • Serves as a single unifying interface to a collection of backend services, avoiding the management silos that otherwise result from disaggregation. This includes a framework for creating and operating on services across organizational boundaries, across a range of implementations, and across multiple tenants.

  • Implements end-to-end service chains across a service mesh, supporting visibility and control at the granularity of individual subscribers or flows. This provides a fine-grain means to correlate diagnostic and monitoring information, allocate resources and isolate performance, and distribute/migrate functionality.

XOS is currently being used in three projects:

  • CORD Controller: XOS is a central part of CORD, providing a coherent service control plane that runs on on top of a mix of disaggregated access technologies, legacy VNFs running in OpenStack VMs, horizontally scalable micro-services running in Kubernetes, and SDN control applications running on ONOS.

  • Network Edge Mediator (NEM): XOS is being used to provide a mediation layer for SEBA (Software-Enabled Broadband Access), addressing the challenge of how to integrate an edge site with different (and potentially multiple) global orchestrators and legacy OSS/BSS.

  • End-to-End Service Chains in a Multi-Cloud: XOS is being used to manage end-to-end service chains that span customer premises, edge sites, and commodity clouds.

For additional white papers describing XOS, see the project wiki page.