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OIF Interop – The Key to Unlocking the Benefits of SDN
Nathan TracyOIF Technical Committee Chair
ECOC 2016Market Focus
September 20, 2016
About the OIF
The Optical Internetworking Forum:• Represents an end-to-end ecosystem
membership base of 100+ members• Accelerating market adoption and
ROI for new technologies• OIF 100G DWDM work united the industry
around a 100G framework and IAs for photonics, FEC and module MSA
• Electrical work defines critical backplane, chip and module interfaces for 100-400G
• Open and agile work plan• Find gaps obstructing deployment and fill
them internally or working with other SDOs• Distributed Control, Centralized Control –
whatever best fits operator needs!
www.oiforum.com
NetworkOperators
SystemSuppliers
TransceiverSuppliers
ComponentSuppliers
Transport Network Virtualization
• Network resources dynamically allocated for high utilization• Resources can be partitioned into slices for service or user• Control exposed through open interfaces
→ Proprietary, vendor-specific silos→ Complex to operate, integrate across
vendors/technologies
→ Logically centralized, vendor-agnostic control and service orchestration
→ Virtualization of physical network resources
OSS Platform
Proprietary OS
Vendor X HW
Proprietary OS
Vendor Y HW
Proprietary OS
Vendor Z HW
Current Networks Software-Defined Networks
OSS Platform/SDN Apps
Virtualized Multi-vendor Multi-domain Network
SDN SW
SDN-enabled HW
Open APIsVendor EMS SDN Control Infrastructure
OIF’s Aim: Transport SDN Toolkit
• Essential tools for Transport SDN deployment• Address carrier operations environment
• Brownfield as well as Greenfield • Enable differentiated services
• Speed service development through standard network APIs• Deliver scalability, security and high performance
• Hierarchical structure with mix of local and central functions
APIs
Services
SDN Architecture for Transport
+ New program –coming soon!
Interoperability testing
Working Protection
� Request On Line� Real-time planning � Real-time setup
� Autonomous Control� Dynamic expansion� Optimization
• Multi-level SLA• Recovery• Network migration
Seconds
Online
Network Slicing GoalReal Time
Open APIs
Robust Data Plane
Physical Optical Network
Virtual Network Topology
Network as a Service
Online SlicingPath ComputationSurvivability AnalysisGlobal Optimization
Tenants
T-SDN Controller
Virtual Transport Network Services
• Virtual networking service evolution• Offering progressively greater control via APIs• Reflected in OIF SDN work
Fixed Connection
Dynamic Connection
Dynamic Connection
Client site A
Client site B
Client site A
Client site B
Client site D
Client site C
Client site A
Client site B
Client site D
Client site CVirtual network with vNE & vLink
Clientcontroller
Ctrl of virtual XC
Connection controlled by network providers
Leased Line
Endpoints OnlyFixed virtual network topology
Static
Dynamic Dynamic Connection
Virtual network with vNE & vLink
Clientcontroller Rent virtual network
resources from provider
Client site
Virtual network recursive creation
Client siteClient site
Client site
Client siteClient siteClient site
Dynamic/recursive virtual network topology
Achieving InteroperabilityChallenges for Developing Common APIs
Existing Tools• Current API work is being done in fragmented silos
• Some linkage of APIs to existing protocol environments
Keys to achieving interoperable common APIs• Define standard model across vendors and technologies
• Common Information model is key to interoperability
• ONF has led a Common Information Model project – aligning ONF, ITU-T, TMF, MEF, OIF modeling
• Verify APIs provide the necessary functionality
• Use case review and convergent SDO work
• Prototype, Demonstrate, Test Code!
OIF Interoperability Demonstration &Testing2014 OIF Transport SDN Demonstration
• OIF/ONF Interop Demonstration• 5 carriers worldwide• Multiple HW and SW vendors
• Equipment in carrier labs• Optical and Ethernet switch
domains• Some testing of OpenFlow
optical extensions• Multi-domain network
• Prototype common API provides access to domains
• Higher level orchestration across domains 2014 Demonstration
Application Layer
Control Layer
Infrastructure LayerDomain 1
NE NE NE
Domain 2
NE NE NE
Domain 3
NE NE NE
Network Orchestrator
DomainController
DomainController
DomainController
SBI
NBI
SBI
CloudOrchestrator
Compute Storage
NBI
Multi-Domain Framework for Testing
Transport SDN framework for carrier networks• Can be realized over
diverse carrier networks• multiple technology
layers• multiple domains with
differing SBI• greenfield and
brownfield
• Need for standards on application layer interface to control layer (NBI)
ONF Transport API Standards
Network Resources
SDN Controller
NENESDN ControllerNENEApplication
Transport API
SBIs (e.g. Openflow,vendor-specific)
NE NE NE
NE
NE
NE NE
NE NENENE
NE
NE
NENE
NE
Topology Service
ConnectivityService
Path Computation
Service
Shared Network Information Context
Virtual Network Service
NotificationService
NBI from SDN Controller to Application • ONF Standards Project closely coordinated with OIF work
• Interface to a Transport Network Controller allowing access to Topology, Connectivity, Virtualization and other services
• Functional Requirements published as TR-527 (see https://www.opennetworking.org/images/stories/downloads/sdn-resources/technical-reports/TR-527_TAPI_Functional_Requirements.pdf)
• UML/YANG/JSON models in draft (see https://github.com/OpenNetworkingFoundation/ONFOpenTransport )
OIF 2016 SDN T-API Interop Demo
What and Who:• OIF is managing the demo, partnering with ONF on technical work• Open to OIF and ONF members as well as non-members• Carriers: China Telecom, China Unicom, SK Telecom, Telefonica, Verizon• System vendors: ADVA, Ciena, Coriant, Fiberhome, Huawei Technologies Co., Ltd.,
Infinera, Juniper, NEC Corporation, Sedona, SM Optics, ZTEWhy:• Help enable wide scale deployment of commercial SDN by testing the recently
approved ONF Transport Application Programming Interface (T-API)• The interoperability test and demonstration will address multi-layer and multi-domain
environments in global carrier labs• Builds on 2014 demo which was based on prototype T-APIs and helped advance
transport SDN standardization• Additional use cases based upon the API standards will be clarified during the testing
and defined through OIF implementation agreements to provide a common set of requirements
When, Where, How:• August-Sept: Technical spec development• October-November: Carrier-hosted lab testing• 1Q17: Demo read-out events and white paper
Next Steps
• Interoperability is technically feasible, as demonstrated in labs, but still missing from commercial products
• The OIF will help carriers unlock the benefits of SDN for their optical networks through three interrelated programs:
• Interop demonstrations hosted by participating operators leveraging key interfaces such as the Transport API to bind together multi-layer and multi-domain carrier networks;
• Implementation Agreements that document the use of industry standards;
• Coming soon - a new program to address the gap between paper specification or early implementation and products that carriers can deploy.
• The new program, along with well established and successful interop testing and IA process, will help realize commercial transport SDN deployment and the promised benefits of accelerated time-to-revenue coupled with increased operational efficiency
Thank You!www.oiforum.com