What is a Network Hypervisor?
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The document discusses the concept of a network hypervisor, emphasizing its role in virtualization and resource management within optical networks. It highlights the separation of features from hardware through Software Defined Networking (SDN) and how network hypervisors enable the programmable control of network resources. The text outlines benefits such as service agility, reduced costs, and the potential for innovative applications by providing a flexible, abstracted network infrastructure.
What is a Network Hypervisor?
- 1. What is a Network Hypervisor? Programmability by Design™
- 2. The Promise Virtualization • Separation of features from HW realization • For network applications this is NFV • For resources sharing this is Hypervisor Programmability • The “SDN” mantra • The ability of software to program the network’s forwarding plane in real time Service Agility • Rapid Service Definition and Deployment • Service Automation • Viable SW Sources Reduced Cost • Simplified Operations • Platform Consolidation • Savings in Application and HW © 2014 ADVA Optical Networking. All rights reserved. 2 Confidential.
- 3. Virtualization NFV & Hypervisors • Function Virtualization • Rework of network applications to run on arbitrary hardware, independent of custom networking hardware • Resource Virtualization • Functionality to logically abstract a single set of network resources and make them usable as independent networks Separation of “what” from “where” © 2014 ADVA Optical Networking. All rights reserved. 3 Confidential.
- 4. Programmability SDN CP CP CP CP CP © 2014 ADVA Optical Networking. All rights reserved. 4 Confidential. Network Mgmt SDN Controller Network Management API’s App Users OSS’s App App • Present Mode of Operation • Forwarding Plane is under the control of embedded control plane and device provisioning • SDN Mode of Operation • Forwarding Plane is programmable in real time by independently developed software
- 5. Programmable Optical Networks Direct Overlay SDN Controller SDN Controller Network Hypervisor • Direct model envisions SDN API’s placed on every optical switching element • Exposes SDN Controller to analog complexities of optical network • Only viable in simple networks • Overlay model abstracts the optical network and presents it as simple elements to the controller • Hides analog optical complexities from controller and apps Finding the appropriate level of abstraction is key to virtualization © 2014 ADVA Optical Networking. All rights reserved. 5 Confidential.
- 6. Virtualization in Optical Networks Resource Virtualization SDN Controller A Network Hypervisor SDN Controller B SDN Controller C • Overlay model can be extended to abstract the network into multiple networks, for multiple controllers • Allows tenant controllers to control virtualized slices of the carrier network • Function Virtualization is not a hot topic in Optical Network Hypervisor creates programmable and virtualized optical network © 2014 ADVA Optical Networking. All rights reserved. 6 Confidential.
- 7. Where Transport Fits in SDN Model • Hypervisors allowed storage and compute resources to be managed together. Hypervisor CPU Storage Compute © 2014 ADVA Optical Networking. All rights reserved. 7 Confidential.
- 8. Where Transport Fits in SDN Model • SDN allowed networking to join in the fun through an orchestration layer. Orchestration Hypervisor CPU SDN Storage Compute Network © 2014 ADVA Optical Networking. All rights reserved. 8 Confidential.
- 9. Where Transport Fits in SDN Model • Applications can be written on top of orchestration layer. User Interfaces 3rd Party Apps Orchestration Hypervisor CPU SDN Storage Compute Network © 2014 ADVA Optical Networking. All rights reserved. 9 Confidential.
- 10. Where Transport Fits in SDN Model • Transport is added by extending the SDN controller function. 3rd Party Apps Orchestration User Interfaces Hypervisor CPU SDN Controller Storage Compute Network © 2014 ADVA Optical Networking. All rights reserved. 10 Confidential.
- 11. Where Transport Fits in SDN Model • A Network Hypervisor virtualizes the transport network and presents an abstracted representation to the SDN controller. SDN Controller Network Hypervisor 3rd Party Apps Orchestration User Interfaces Hypervisor CPU Storage Compute Network Transport © 2014 ADVA Optical Networking. All rights reserved. 11 Confidential.
- 12. Where Transport Fits in SDN Model • Now that all network layers are included in the control model, end-to-end, Future Awesomeness! SDN Controller Network Hypervisor 3rd Party Apps Orchestration new applications are possible. User Interfaces Hypervisor CPU Storage Compute Network Transport © 2014 ADVA Optical Networking. All rights reserved. 12 Confidential.
- 13. Where Transport Fits in SDN Model Future Awesomeness! Optical Network Hypervisor SDN Controller Optical Network Controller Network Hypervisor 3rd Party Apps Orchestration User Interfaces Hypervisor CPU Storage Compute Network Transport Management Fault & Alarms Configuration Accounting Performance Security Control Topology Disc Path Compute Provisioning Resource Mgr Policy Mgr © 2014 ADVA Optical Networking. All rights reserved. 13 Confidential. Database Flow DB Topology DB Resource DB Policy DB • The Network Hypervisor has a big job in managing all transport.
- 14. Application Drivers in Optical Networks Use Mission Cases • Datacenter Connectivity • Cloud Bursting • Secure multi-tenancy • Optical VPN • Multi-Layer Optimization Tenant B cloud Tenant A cloud Tenant C cloud NMS / CP / SDN DC Site 1 MAN / WAN Enterprise DC Site N SDN turns the network into a programmable resource © 2014 ADVA Optical Networking. All rights reserved. 14 Confidential. 1TB Data Transfer Speed Duration 10G 15 min 1G 2.5h 100M 1 day
- 15. Summary • SDN turns the network into a programmable resource • Network Hypervisor makes optical layer programmable • Resource Virtualization • Network Hypervisor abstracts the network into slices © 2014 ADVA Optical Networking. All rights reserved. 15 Confidential.
- 16. © 2014 ADVA Optical Networking. All rights reserved. 16 Confidential.