1 Restricted © Nokia 2018 Bell Labs

Bell Labs

Stepwise development of ONOS controlled

Open Disaggregated Transport Networks

D. Verchere, Q. Pham Van, G. Atkinson, M. Thottan, A. Mayoral, O. Gonzales de Dios, V. Lopez ONF Connect’2018 Conference December 4th - 6th 2018 – Santa Clara - CA

Networks are in the middle of a massive transformation…

« Optical networking is transforming and is expanding everywhere »

Edge Metro Regional Global

METRO COLO/ DATA

CENTERS

REGIONAL CLOUD DATACENTERS

ENTERPRISE IT/DATA CENTERS

GLOBAL CLOUD DATA

CENTERS

INTERNET EXCHANGE CO/POP COLO / DC DC /EXCHANGE

Internet

Enterprise Cloud &

DC

Mobile

Business/DC

Internet of Things

Residential

CSP ICP MNO CNP DSP ENT

3 Bell Labs

… towards Automation & Abstraction Virtualization

Optical Channels controlled as Services

Hierarchical

End-to-end service-enabled relationships

Consumable

Automated deployment, fulfillment & assurance

Multi-tenant

Restricted

Optical Network Infrastructures

Transport Slice Transport Slice

E2E network slice E2E network slice E2E network slice

How can Control Platforms support Transport Network Transformation?...

4 Bell Labs

Towards Software Defined Optical Channels

Enterprise #1

Enterprise #2

Datacenters

OTN switch Flexi-rate board

SDN Controller

optical node #2

node #1 node #n « Set and Forget »

configuration

Fixed Optical Network

Configuration

optical node #2

node #1 node #n

« Set and Forget » Manual configuration

Fixed Optical Network

Configuration

TODAY COMING SOLUTIONS

Define/try and continuously adjust configuration Setting with just-required performance Fast delivery of optical channels on application demand Multi Vendor Optical Systems

Optical channel configuration never changed Guaranteed setting with large margins Deployment of services in months Single Vendor Optical Systems

« Programmable » Automatic Reconfiguration

ITU-T Fixed Grid Flexible ITU Grid

50Ghz 50Ghz

200Gbs 100Gbs 10Gbs 40Gbs 100Gbs 200Gbs

37.5Ghz 50Ghz 25Ghz 12.5Ghz 50Ghz Frequency granularity

Frequency granularity

6.25Ghz

50Ghz

50Ghz 40Gbs 10Gbs

Spectrum occupancy gain

ONOS

5 Bell Labs

Proprietary interfaces

REST

From where do Operators start … … opening and unleashing their Transport Network infrastructures?

BSS / OSS

NMS (i.e., X_NMS)

TerminalDeviceVendor_X ROADMVendor_X

Deployed (now)

No Disaggregated – Proprietary

NMS (i.e., X_NMS)

Proprietary interfaces NETCONF/OpenConfig

BSS / OSS

Orchestrator (Service)

SDN Controller (Resource) RESTCONF/TAPI

RESTCONF/TAPI

REST

REST

Brownfield deployment (short term)

TerminalDeviceVendor_Y ROADMVendor_X

Partially Disaggregated

TerminalDeviceVendor_X

6 Bell Labs

NMS (i.e., X_NMS)

Proprietary interfaces NETCONF/OpenConfig

BSS / OSS

Orchestrator (Service)

SDN Controller (Resource) RESTCONF/TAPI

RESTCONF/TAPI

REST

REST

Brownfield deployment (short term)

TerminalDeviceVendor_Y ROADMVendor_X

Partially Disaggregated

TerminalDeviceVendor_X

From Partially to Fully Disaggregated Transport Network infrastructures Open-Source SDN framework based Network Control Platforms

Greenfield deployment (mid/long term)

Fully Disaggregated

REST

BSS / OSS

Orchestrator (Service)

SDN Controller (Resource)

TerminalDeviceVendorXorVendor_Y

RESTCONF/TAPI

NETCONF/OpenConfig

REST Intent Monitoring FW

NMS

ROADMVendorXorVendor_Y

SDN Apps

Proprietary interface Streaming telemetry

7 Bell Labs

Configuration & Controlled of Pairs of Transponders – ODTN Phase 1.0 Integration and 1st demonstration at Telefónica lab completed – August 2018

© NOKIA 2018

NETCONF/OpenConfig to configure NOKIA transponders

ONOSController

Pre-configured Optical Channel (OCh)

100G 100G

Transport API 2.0.2 / RESTCONF ONOS translates Transport-API connectivity service request

into NETCONF/OpenConfig <edit-config> to

configure transponder devices

T-API based service request (Connectivity service request)

Line Port Line Port

Client Port Client Port

Transponder_2 Transponder_1

PSI-2T PSI-2T

8 Bell Labs

T-API / RESTCONF (Connectivity & Topology services) ver. 2.1

ROADM ROADM ROADM ILAMP ROADM

ROADM ROADM

Transponder_2

Partially Open Disaggregated Network Control Platform Architecture Brownfield deployment - ODTN Project Phase 1.5*

© NOKIA 2018

NETCONF/OpenConfig to configure transponder ports

ONOSController

Open Line System (OLS)

100G 100G

Transponder_1

ServiceOrchestrator

Dynamic Config

Subsystem

Transport API / RESTCONF (ver. 2.1)

Service Application

Service Application translates T-API /Connectivity service to

OLS Controller and to NETCONF/OpenConfig for terminal devices (Transponders)

Line Port Line Port

OLS Controller* Networktopologyexposurecontrol

Client Port Client Port

Provideconnectivityservice

* On going …

T-API service request (Connectivity services)

OLS Controller translates T-API service requests and

configures/controls optical devices (ROADMs, ILAs, MUX, etc.)

9 Bell Labs

Transport API / REST (ver. 2.1)

Transponder_2 Transponder_1

Fully Open Disaggregated Network Control Platform Architecture Greenfield deployment – ODTN Phase 2.0

© NOKIA 2018

ONOSController

Meshed Optical Network Domain

100G 100G

ServiceOrchestrator

Dynamic Config

Subsystem

TransportPCE translates T-API service requests to NETCONF/OpenConfig commands to configure &

control directly Optical devices: Transponders, ROADMs InLineAmplifiers, MUX/DEMUX etc.

T-API service request (Connectivity & Topology services)

Line Port Line Port

ROADM ROADM ROADM ILAMP

ExposedNetworktopologyanddeliversconnectivityservices

NETCONF/OpenConfig to configure wavelength routers Client Port Client Port

Service Application

ROADM

ROADM ROADM

PSI-2T PSI-2T

NETCONF/OpenConfig to configure transponders

10 Bell Labs

•  Brownfield Deployments – ODTN Phase 1.5 -  TAPI for ONOS South Bound Interface -  ONOS Controller / OLS Controller exchange sequences for Optical Channel provisioning

What need to be considered/studied in ONOS Software Next steps on ODTN Phase 1.5

Confidential and Proprietary © Nokia 2018

OLS Controller

Proprietary interfaces NETCONF/OpenConfig

BSS / OSS

Orchestrator (Service)

ONOS RESTCONF/TAPI

RESTCONF/TAPI

REST

REST

TerminalDeviceVendor_Y ROADMVendor_X TerminalDevice

Vendor_X

OLS Controller

ONOS RESTCONF/TAPI

11 Bell Labs

•  Greenfield Deployments – ODTN Phase 2.0 -  OpenConfig model extensions

•  Optical device and link discovery / auto-discovery

-  Optical Channel abstraction in ONOS Topology Manager •  TE attributes must be defined and then added

-  From IETF/I2RS, TAPI 2.1+ extensions, etc.

-  First attributes: Power, OSNR, CD, PMD, etc.

-  Optical channel feasibility computation: •  How are Physical impairments used?

•  Which Physical Simulation Engine(s)?

-  And more …

What need to be considered/studied in ONOS Software After ODTN Phase 1.5

Confidential and Proprietary © Nokia 2018

REST

BSS / OSS

Orchestrator (Service)

ONOS

TerminalDeviceVendorXorVendor_Y

RESTCONF/TAPI

NETCONF/OpenConfig

REST Intent Monitoring FW

NMS

ROADMVendorXorVendor_Y

SDN Apps

Proprietary interface Streaming telemetry

12 © Nokia 2018

Confidential

Many Thanks to:

•  NOKIA Bell Labs colleagues,

•  NOKIA IP/Optical Networks colleagues,

•  SENDATE CELTIC-Plus Project

•  ONF ODTN Project members …

This work has been partially supported by French government through SENDATE –TANDEM project

13 Bell Labs

Comprehensive Network Control approach for Open Line Systems

1.  Control Agents on Devices •  NETCONF, gRPC, •  OpenConfig models

3. Control Apps and Orchestration •  Assurance, e2e coordination •  Service Management & Deployment

2. SDN Controller (Customized) •  ONOS-based platform •  TAPI NBI and NETCONF SBI

4. System Integration •  Integration, Performance validation •  Troubleshooting , management,

inventory

Orchestrator, IP, NFV

Open SBI model

Open NBI model

SDN Controller

Vendor X

Vendor Y

ROADM ROADM OT

OT

OT

OT

Control Apps

OT

OT

OT

OT

Optical Terminals

ROADM (NOKIA, 3rd party)

1

3 3

2

4

TAPI

14 Bell Labs

Shaping the future of technology to transform the human experience Future Network Control Platforms for

Open Transport Control & Configuration