how will virtual networks, controlled by software, impact oss systems?

How will virtual networks, controlled by software, impact OSS systems.

Michiel Nuytemans

OSS Consulting

Introduction

Software-Defined Networking (SDN)

Network Function Virtualization (NFV)

OSS: Revolution or Evolution

Conclusion

Introduction

Welcome to the Zettabyte Era

Source: Cisco VNI Global IP Traffic Forecast, 2015–2020

Annual global IP traffic will pass the zettabyte ([ZB]; 1000 exabytes [EB])

threshold by the end of 2016, and will reach 2.3 ZB per year by 2020.*

Year

Global

Internet

Traffic

1992 100 GB / day

1997 100 GB / hour

2002 100 GBps

2007 2,000 GBps

2015 20,235 GBps

2020 61,386 GBps

Historial Traffic

Global IP traffic is not only growing but also changing

Busy-hour Internet traffic is growing more

rapidly than average Internet traffic.

Globally, IP video traffic will be 82 percent of all

IP traffic by 2020, up from 70 percent in 2015.

Smartphone traffic will exceed PC traffic by 2020.

The importance of QoSQuality of Service is important

OTT services have an impact on the ARPU

Grow network capacity.

Support QoS.

Reduce time-to-market.

Does this have an impact on the network infrastructure?

But what about the Budget?

*based on information from Equinix (2009-2014)

Multi-technology silo´s.

Multi-vendor networks.

Low level of automation.

Agnostic to services.

Sub-optimal configuration and

management.

Increased complexity due to mix of vendors and technologies

Software-defined network

The network before SDN

Client DC

Control Plane

Data Plane

Control Plane

Data Plane

Control Plane

Data Plane

Control Plane

Data Plane

A B

Life after SDN

Control Plane

Data Plane

Control Plane

Data Plane

Control Plane

Data Plane

Control Plane

Data PlaneData Plane

Data Plane

Controller

Data Plane

Data Plane

Application ApplicationApplicationEMS/NMSCLIVendor-

Specific

SDN - Architecture

SDN architecture (patterned on Open Flow Foundation materials)

1. Centrally controlled

2. Software-driven

3. Programmable

4. Open

SDN - Definition

Data Plane

Data Plane

Controller

Data Plane

Data Plane

Application ApplicationApplication

Real-time optimization of thenetwork.

Use of commodity hardware

Rapid-innovation through software updates

Platform for network serviceinnovation

SDN - Benefits

SDN – B4 - Google Datacenter WAN

Network Function Virtualization

Applications are deployed on

virtual environment.

Virtualization creates abstraction

of actual hardware appliance

being used.

Virtual environment are easier to

deploy and reconfigure.

NFV – Analogy to IT Virtualization

Source: Basic Virtual IT-Architecture

VNF are virtual network functionslike Firewall, Load balancer, CPE´s, IMS, GGSN, …

VNF use virtual resources(Compute, Storage, Network) provided by NFV infrastructure.

Rapid deployment of VNF´s

Scalable / Elastic

Scale-out

Scale-up

Innovation decoupled from hardware

NFV – Definition and Architecture

Source: ETSI NFVI architecture

NFV – The case of vCPE´s

OSS: Revolution or Evolution

STRATEGY, INFRASTRUCTURE

& PRODUCT

OPERATIONS SUPPORT &

READINESS

FULFILLMENT ASSURANCE

Ser

vice

Man

agem

ent

OSS Process Management

SLA Monitoring

Customer

Experience

Management

Service Quality

Management

Service

Monitoring

Service Order

Management

Service

Fulfilment

Service

Activation

Service Inventory

Management

Service Catalogue

Performance

Management

Fault

Management

Network

Planning & Design

Network Inventory

Management

Auto-Discovery

& Reconciliation

Configuration Management

OSS Mediation

Field Service Management

Res

ourc

e M

anag

emen

t

Other Systems (BSS, Trouble Ticketing, etc.)

COMARCH OSS SUITE

Reusable

Components

Authentication

Service

Reporting

Service

System

Repository &

Configuration

Notification &

Escalation

Service

OSS Console GIS

WEB Console

One comprehensive system managing the

whole network:

• Physical elements

• Network logical elements

• Service instances

ETSI Ref Arch - Comarch OSS

NFV - BSS/OSS

OSS – Traditional Role

Real-time OSS

SDN architecture – vision

SDN – BSS/OSS

OSS SUITE - where is the NFV/SDN module?

SID MODEL:

CFS-RFS-R as a basis for model-driven

orchestration

Customer Service view

triggering scalability and self-healing

PNF & VNF as Logical

Resources

Alarms NFVI and

PNF & VNF

KPIs for NFVI and PNF

& VNF

Model-driven

orchestration

It’s all about new services being introduced much faster

CFS

CFS x

RFS

RFS 1

RFS

RFS 1

RFS

RFS 3

PNF

Network Function

PNF

Network Function

Dedicated Hardware

Physical Resource

VNF

Network Function

VNF

Network Function

Dedicated Hardware

Physical ResourceBlade

Physical Resource

Blade

Physical Resource

Blade

Physical Resource

Virtual Machine

Logical Resource

Virtual Machine

Logical Resource

Virtual Machine

Logical Resource

ETSI VNF On-

boarding: VNF

Descriptors in Yang, or

TOSCA, etc.

ETSI NS On-

boarding: NS

Descriptors in Yang ,

or TOSCA, etc.

CFS-RFS-R

modelling via GUI

Service Catalog (No

Yang etc. Scripting)

VPN example – traditional implementation

VPN - based on SDN and NFV

VPN – access to business applications and Internet

VPN - implementation details

CPE:

Control Plane –

SDN controller

applications

Firewall as VNF on

NFVI

CPE:

Data Plane – Flow

entries in OFP

Switch

VPN - Catalog driven fulfillment

class Domain Objects

«CFS»

VPN

«CFS»

SiteManagedLAN

- IPSubnetwork :int

«CFS»

SiteAccess

- bandwidth

«CFS»

BusinessApplications

- IPAddress

- MAC

«CFS»

Host

- MAC

- IPAddress

«CFS»

InternetAccess «CFS»

Firewall

RFS Firewall

«R»

v Firewall

«R»

VM

«RFS»

SiteAccessFlow

«R»

CPE_OFPSwitch

«R»

PE_OFPSwitch«R»

OFPSwitchFlowEntries

«R»

OFPSwitch_FlowEntries

«RFS»

InternetAccessFlow

«R»

InternetGateway

VPN – access to business applications and Internet

1. Enterprise Customer,

issue and order for an

extra Business

Application at Site2

VPN - Fulfillment example

2. The customer order

updates data in Network

and Service Inventory

VPN - Fulfillment example

3. Network is

„reprogrammed”

based on data ->

Data flows are

updated

3

3

3

3 3

As a finale note…

Thank You

michiel.nuytemans@comarch.com

Comarch AG

Avenue de la Toison d'Or 67

1060 Brussels

Phone. +32 2 535 55 00

Fax. +32 2 535 55 01

www.comarch.com