OIF Interop – The Key to Unlocking the Benefits of SDN

Nathan Tracy

OIF Technical Committee Chair

ECOC 2016

Market 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

Network

Operators

System

Suppliers

Transceiver

Suppliers

Component

Suppliers

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 APIs

Vendor EMSSDN 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 Goal

Real Time

Open APIs

Robust Data Plane

Physical Optical Network

Virtual Network Topology

Network as a Service

Online Slicing

Path Computation

Survivability Analysis

Global 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 C

Virtual 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 site

Client 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 domains2014 Demonstration

Application

Layer

Control Layer

Infrastructure Layer

Domain 1

NE NE NE

Domain 2

NE NE NE

Domain 3

NE NE NE

Network

Orchestrator

Domain

Controller

Domain

Controller

Domain

Controller

SBI

NBI

SBI

Cloud

Orchestrator

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

NENE

SDN ControllerNENE

Application

Transport

API

SBIs (e.g. Openflow,

vendor-specific)

NE NE NE

NE

NE

NE NE

NE NENENE

NE

NE

NENE

NE

Topology

ServiceConnectivity

Service

Path

Computation

Service

Shared Network Information Context

Virtual

Network

Service

Notification

Service

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.or

g/images/stories/downloads/sd

n-resources/technical-

reports/TR-

527_TAPI_Functional_Requireme

nts.pdf)

• UML/YANG/JSON models in

draft (see

https://github.com/OpenNetwor

kingFoundation/ONFOpenTrans

port )

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, ZTE

Why:

• 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