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.

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
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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
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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
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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.