Summit 16: Open-O Mini-Summit - Orchestrating Network Connectivity Services

Orchestrating Connectivity Services

over SDN and Legacy Networks

OPEN-O Mini Summit

Michael Kearns – Huawei, VP Fixed Network OSS

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Why SDN Orchestration (SDN-O) ?

• To be E2E service orchestration must include connectivity to customer sites

• Network connectivity must match the speed of Cloud

• Current OSS is not agile enough

• Most carrier networks are hybrid networks of legacy, SDN, and virtual

• Controller role is network resource abstraction and path calculation

• SDN-O role is connectivity service abstraction and orchestrationLegacy

DomainSDN Domain

ASDN Domain

B

Controller(ONOS)EMS

OSS/BSS

SDN Orchestrator

Controller (ODL)

3

Problem with current OSS

Designed for static network service offerings

Hardwired support for each service offering

Big project to introduce new service offering

Many disparate software applications

Complex, costly integration

Limited ability to automate

Not architected for Connectivity Service Agility

OSS/BSS

Network

4

What is SDN-O?

NFVSDN

Extracts & standardizes connectivity service design & life-cycle automation into a real-time SDN Orchestrator

SDN-O

SDN-O Introduces Service Agility for Connectivity Services to OSS…

Network

BSS

OSS/BSS

Network

5

KEY SDN-O Requirements • Full service life-cycle automation (Design, Provision & Operate) for multi-technology, multi-layer, multi-vendor

connectivity services via a unified real-time orchestration platform

• Support SDN & Legacy Networks and the evolution path

• Common Standard NBI(s) and SBI(s) for rapid integration with OSS and Network

• Common Inventory for accurate inventory of network connectivity services & resources and mapping between them

• Design Time / Run-Time Programmability, introduce new connectivity service offerings & technologies without the need for new orchestrator releases

• Carrier grade scale, performance & reliability, cloud scaling, fault tolerant and self-healing

Open Source prevents lock-in, builds momentum, encourages sharing & reduces risk

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Scope of SDN-O in OPEN-O

7

SDN & Legacy network support

DriverDriver

Legacy SDN

ControllerEMS

Common Resource SBI(s)

Common Service NBI(s)

SDN-O Portal

GS-O

REST, RESTCONF,

YANG, TOSCA …

Map Service &

Network Requests

REST,

RESTCONF,

YANG …

Key considerations for Target Architecture

Design-time/Run-time Programmable

Common Information Model & Inventory

Model-Driven Service Design

Model-Driven Orchestration (Provisioning,

Discovery, Inventory, Assurance …)

Standards based NBI(s) e.g. MEF LEGATO,

IETF L3VPN…

Standard based SBI(s) e.g. MEF PRESTO,

OpenConfig…

Support for SDN & Legacy but also the evolution path

Service Model

definition & mapping &

Orchestration

Network Model

definition & mapping

Network resource

discovery &

abstraction

3

2

1

8

SDN-O R1 vCPE Use Case

Network Connectivity

(Enterprise to DC)

GS-OSDN-O Portal

9

SDN-O R1 Scope

R1 Scope: Network Integration & Provisioning • Simple SDN-O GUI

• Lifecycle Management

• NBI (REST) / SBI (REST / RESTCONF / YANG)

• VLAN/VxLAN/L3VPN/IPSec (stretch L2VPN)

• Basic Resource Management (BRS)

• Drivers using Driver Manager

• Monitor and Optimize (stretch goal)

• Basic Service Inventory (stretch goal)

Post R1: Add New Service Type, Assurance …

SDN-O

Portal

Lifecycle Management

SDN-O GUIGS-O

E2E Network

Connectivity

Service

Service 1:

VLAN/

VxLAN

Service 2:

IPSec

Service 3a:

L3VPN

Service 3b:

L2VPN

Monitor &

Optimize

SDN

Monitor

Optimize

API (s)

API (s)

VLAN/

VxLAN

L3 MPLS

VPN

BRS

IPSec SPTN VIMRel 1 Scope Rel 1 Stretch Goal

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SDN-O Related Standards & Open Source

Key benefits of Standards & Open Source alignment:• Very important for openness and industry adoption • Faster Time To Market with greatly reduced integration • Sustainable product differentiation (when applied correctly)

One set of API’s

derived from ONF

CIM to enable

multi technology,

multi domain

network services

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Conclusion

Network Connectivity must match the speed of Cloud

Current OSS is not agile enough to deliver that speed

Most carrier networks are a hybrid of legacy, SDN, and virtual networks

SDN-O delivers standardized real-time service design & life-cycle automation to OSS

Standards & Open Source support is very important for industry adoption

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