The document discusses the impact of software-defined networking (SDN) and network function virtualization (NFV) on operations support systems (OSS). It highlights the significant growth in global internet traffic and emphasizes the need for improved quality of service and network management. The text also explores the benefits of SDN and NFV in facilitating rapid deployment and scalability of network services, along with a detailed analysis of traditional OSS roles and their transformation in the context of SDN and NFV.

1. How will virtual networks, controlled by
software, impact OSS systems.
Michiel Nuytemans
OSS Consulting

2. Introduction
Software-Defined Networking (SDN)
Network Function Virtualization (NFV)
OSS: Revolution or Evolution
Conclusion

3. Introduction

4. 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

5. 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.

6. The importance of QoS
Quality of Service is important

7. OTT services have an impact on the ARPU

8.  Grow network capacity.
 Support QoS.
 Reduce time-to-market.
Does this have an impact on the network infrastructure?

9. But what about the Budget?
*based on information from Equinix (2009-2014)

10.  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

11. Software-defined network

12. The network before SDN
Client DC
Control Plane
Data Plane
Control Plane
Data Plane
Control Plane
Data Plane
Control Plane
Data Plane
A B

13. Life after SDN
Control Plane
Data Plane
Control Plane
Data Plane
Control Plane
Data Plane
Control Plane
Data Plane
Data Plane
Data Plane
Controller
Data Plane
Data Plane
Application ApplicationApplicationEMS/NMSCLI
Vendor-
Specific

14. SDN - Architecture
SDN architecture (patterned on Open Flow Foundation materials)

15. 1. Centrally controlled
2. Software-driven
3. Programmable
4. Open
SDN - Definition
Data Plane
Data Plane
Controller
Data Plane
Data Plane
Application ApplicationApplication

16. Real-time optimization of the
network.
Use of commodity hardware
Rapid-innovation through software
updates
Platform for network service
innovation
SDN - Benefits

17. SDN – B4 - Google Datacenter WAN

18. Network Function Virtualization

19.  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

20.  VNF are virtual network functions
like 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

21. NFV – The case of vCPE´s

22. OSS: Revolution or Evolution

23. STRATEGY, INFRASTRUCTURE
& PRODUCT
OPERATIONS SUPPORT &
READINESS
FULFILLMENT ASSURANCE
ServiceManagement
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
ResourceManagement
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

24. ETSI Ref Arch - Comarch OSS
NFV - BSS/OSS
OSS – Traditional Role
Real-time OSS

25. SDN architecture – vision
SDN – BSS/OSS

26. 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

27. 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 Resource
Blade
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)

28. VPN example – traditional implementation

29. VPN - based on SDN and NFV

30. VPN – access to business applications and Internet

31. VPN - implementation details
CPE:
Control Plane –
SDN controller
applications
Firewall as VNF on
NFVI
CPE:
Data Plane – Flow
entries in OFP
Switch

32. 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»
vFirewall
«R»
VM
«RFS»
SiteAccessFlow
«R»
CPE_OFPSwitch
«R»
PE_OFPSwitch «R»
OFPSwitchFlowEntries
«R»
OFPSwitch_FlowEntries
«RFS»
InternetAccessFlow
«R»
InternetGateway

33. VPN – access to business applications and Internet
1. Enterprise Customer,
issue and order for an
extra Business
Application at Site2

34. VPN - Fulfillment example
2. The customer order
updates data in Network
and Service Inventory

35. VPN - Fulfillment example
3. Network is
„reprogrammed”
based on data ->
Data flows are
updated
3
3
3
3 3

36. As a finale note…

37. 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