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