1. ONOS Use Cases
Tom Tofigh
AT&T

2. Service Provider Network of the Future NFaaS in Central Office
Multilayer packet-optical in the Core
Core
Packet-Optical
PoP
Built like a Data Center
Network Interface
Metro
Packet-Optical
Wired Access
Wireless Access
Access
NFaaS in Central Office Built like a Data Center
Network Interface
Enterprise Access
Enterprise Access

3. Service Providers are also keen on solving scaling, migration issues with SDN and introducing SDN control in their WAN networks.
We built two other use cases based on these requirements:
SDN-IP
SDN-based WAN control with segment routing

4. ONOS Service Provider Use Cases
Multi-layer SDN control of
Packet-optical
Segment
Routing
SDN-IP
NFaaS in CO
North-bound abstraction
Application Intent Framework
ONOS
Policies
South-bound abstraction
Southbound Interface B
Southbound Interface A
OpenFlow

5. SDN based WAN Control with Segment routing
Requests
Routing Service
Routing,
Recovery,
Label imposition
Requests
Discovery Service
Forwarding Service
ONOS
OpenFlow
SR Labels imposed by controller
Open Segment Routers (OSR)
Open Segment Routers (OSR)
OSR FIB built by controller
This use case has been developed in collaboration with ONF.

6. SDN Control of Multi Layer Networks: Packet Optical
Praseed Balakrishnan
Fujitsu Network Communication

7. Todays Multi-Layer Network:
Without Converged Control Plane  A E B C D
MPLS Tunnels
Controlled and managed independently
Packet networks over provisioned to deal with traffic bursts and failures P3 P1 P2 P4 P5
IP Routers
Optical networks over provisioned independently R1 R2 R4 R7 R3 R5 R6
Slow to react to BW demands
ROADMs
Lack of agility and significant capex & opex inefficiencies

8. With Converged Control PlaneB C D
Enable new services with SDN control plane P3 P1 P2 P4 P5
Reduce overprovisioning of resources with a combined control plane
Fast wavelength allocation of bandwidth in transport network for packet traffic
Rapid recovery from transport failures R1 R2 R4 R7 R3 R5 R6

9. Potential Use Cases Inter Data Center BW on Demand Optimization
Traffic engineering
Defragmentation
Restoration strategies

10. Our Goal Target Use Case: Prototype BW on Demand using ONOS
Demonstrate SDN control of packet optical networks using ONOS
Add support for multi-layer networks in ONOS
Write core functions to control multi-layer networks
Demonstrate a couple of app scenarios
Target Use Case: Prototype BW on Demand using ONOS
Multi layer topology and resource utilization
Multi layer Packet and Optical layer control
Handling of optical layer failures

11. New Functionality Needed
Converged multi layer view
Enables multi-layer PCE
Multi-layer aware service APIs
Southbound abstraction for multi-layer
Listening and reacting to failure
Northbound APIs

12. Implementation on ONOS
ONOS GUI:
Visualization of Intents
Visualization of Topology
Portal Calendaring APP
Topology:
Multi layer abstraction
Resource Utilization
Intents:
Path Computation
Reservation and
Resource Management
Path Re-compute on
Failure events
SB API
Discovery
OF using experimenter
messages
Packet - OVS
Optical Emulator (LINC-OE)

13. Planned BW of Demand Demo
Customer Portal
ONOS
10G Connection from NodeA:PortA to NodeZ:Port Z with latency less<10ms
DC1
DC2
OVS3
OVS1
OVS2
OVS4
OVS5
optical circuit
Re-Route optical circuit
OE1
OE2
OE4 R7
OE3
OE5
OE6
OE7

14. Seamless Interworking of SDN and IP
Luca Prete
ON.Lab

15. ONOS and SDN-IP S D N S D N ONOS ONOS
ONOS used to be confined in his wonderful world,but wasn’t able to communicate with the outside

16. ONOS and SDN-IP ONOS SDN-IP
One day, SDN-IP came and gave the ability to ONOS to speak to the rest of the world. ONOS was finally free!

17. ONOS and SDN-IP BGP IP IP
ONOS started to communicate with IP components similar to it, speaking a widely used old language, called BGP.

18. ONOS and SDN-IP
ONOS
ONOS
ONOS
ONOS
BGP
ONOS
ONOS
ONOS
SDN-IP
BGP
ONOS
SDN-IP
ONOS “Clusters” started also to “peer” together to be more efficient and scalable using BGP

19. SDN-IP for external networks

20. SDN-IP to connect ONOS clusters

21. What has changed from last ONRC?
Old SDN-IP
New SDN-IP
BGP
speaker
BGP
speaker
BGPd
BGP
speaker
SDN-IP
SDN-IP
SDN-IP
SDN-IP
ONOS 1
ONOS 2
ONOS n
ONOS 1
ONOS 2
ONOS n
...
...
Single-instance
No SDN-IP Application HA
Able to speak with a single, dedicated BGP speaker
Stateless protocol (dedicated REST API)
Multi-instance
SDN-IP Application HA
Able to speak with generic iBGP speakers
Stateful protocol (iBGP)

22. What has changed from last ONRC?
SDN-IP
(SDN-IP, BGP, ARP,
Routers Configuration, NB)
ARP
Before
Intent framework - NB
BgpSessionManager
PeerConnectivityManager
SdnIpService
RouteListener
Router
After
SdnIpConfigReader
Configuration
ArpService
PeerConnectivity
SDN-IP
IntentService

23. BGP architecture ... SDN-IP: single instance focus BGP Speaker 1
BGP Speaker n
iBGP
iBGP
iBGP
SDN-IP boundary
BGP Session 1
BGP Session 2
BGP Session 3
...
BGP Session Manager
RouteListener

24. Demo on December 5th? ... ONOS Cluster Communication
between SDN network and external network
Communication
between external
networks
ONOS/SDN-IP HA
SDN-IP
SDN-IP
SDN-IP
BGP speaker HA
External BGP router/connection HA
ONOS 1
ONOS 2
ONOS n
...

25. Planned Internet2 deployment
Provide L3 connectivity between 6 universities around US
SDN switches in the core
ONOS and SDN-IP will control the network
Universities will advertise through a BGP peer a /32 network to the SDN-IP application
SDN-IP and ONOS will translate routes into “intents”`

26. thank you!
questions
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