This slide covers evolution of Networks, SDN Concepts, Various Controller available in the market and Use Cases.

1. Automate
Orchestrate
Remediate
Introduction to SDN and NFV

2. Agenda Introduction
Market trends
Evolution of IT Networks
Current Challenges
SDN
SDN Overview
Why SDN ?
Traditional networks vs SDN
SDN Controllers
Use Cases
NFV
NFV Overview
NFV Architecture
SDN and NFV together-Benefits
Cloudenablers in SDN and NFV Space

3. SDN and NFV Market Trends
• SDN and NFV have emerged as prominent technologies and picked up significant market
traction in the past two years
• SDN and NFV networking technologies are poised to redefine networking architecture
• SDN and NFV market to grow from USD 2.02 Billion in 2015 to USD 45.12 Billion by 2020.
This represents a Compound Annual Growth Rate (CAGR) of 86.1% from 2015 to 2020.

4. Evolution of Networks
Multi terminal Systems LAN and PC’s

5. Evolution(Social , Mobile and Internet Age)

6. Challenges
Policies ??
Access restrictions ??
Network QoS ??
Virtual Networks??
Scaling??

7. Possibilities
Network Management Systems(NMS)
Making the hardware's
more configurable and
customizable
Many OEM’s
Not the core functions
Difficult to change frequently
Making the NMS/EMS layer
more intelligent
OEM Specific
Many Standards/Protocols
Only limited to few N/W
devices
Network Controller
Open Standard
Acts as a Business layer
Can interface with other
functions(Storage/Resource)
Cloud and Virtualization ready
SDN

8. SDN Overview
 Separation of control and
data planes
 Network abstraction
 Programmable data plane
 Virtualization of the network
 Automation and
orchestration

9. SDN Overview

10. Why SDN
 Centralized Orchestration
 Handle Complexities in the new age Network Environment (Physical,
Virtual, Cloud, Containers, PaaS etc)
 Vendor Agnostic Configuration and Management
 Greater flexibility, agility
 Lower operating expenses and optimized capital expenditure
 Better and more granular security
 Scaling of Applications and Network Functions

11. OpenFlow
• Allows direct access to and manipulation of the forwarding plane of network devices such as
switches and routers, both physical and virtual (hypervisor-based).
• First standard communications interface defined between the control and forwarding layers

12. OpenFlow - Parts
 Flow Table
 Secure Channel
 OpenFlow Protocol

13. Traditional Network Vs SDN
NMS

14. SDN Controllers
Open Source SDN Controllers
• OpenDaylight
• OpenContrail
• ONOS
• POX
• Beacon ( Java Based OpenFlow Controller)
• Trema (Ruby-based from NEC)
• Ryu (Supported by NTT)
Commercial SDN Controllers
• Cisco's Application Centric Infrastructure (ACI)
• Brocade SDN Controller (ODL Distribution)
• BigSwitch SDN Fabric
• Blue Planet SDN Orchestration platform
• B4N Controller
• Cloudband (Alcatel-Lucent)
• Extreme Network One Controller
• Inocybe Open Networking Platform (ODL Distribution)

15. SDN Use Cases
• Network Automation and Orchestration
• Software Defined Data Center (SDDC)
• Network Topology Discovery
• Application Aware Network Functions
• Traffic Engineering
• Network Functions as a Service
• Cross Domain Interconnect

16. NFV Overview
 NFV offers a new way to design, deploy and manage networking services.
 NFV decouples the network functions from proprietary hardware appliances so
they can run in software.
 The constraints of hardware-based appliances led them to applying standard IT
virtualization technologies to their networks
 Originated form service providers who were looking to accelerate the deployment
of new network services to support their revenue and growth objectives
 To accelerate progress towards this common goal, several providers came
together and created the ETSI

17. NFV
Example Network Services or Functions are
• Firewall
• DNS
• Large Scale NAT
• Policy Manager (apart from PCRF)
• DRA (Diameter Routing Agent) and DEA (Diameter Edge Agent )
• Web Application Firewall (WAF)
• Forward and Reverse Proxy
• DPI
• IDS/IPS
• VPN (SSL Based or IPSEC) based Client to Site
• Load Balancing
• DNS Authoritative
• Application Delivery Controller
• DDOS/Malware (Distributed Denial of Service)
• Router
• VEPC
• vCPE

18. ETSI NFV Architecture

19. Cloudenablers in SDN and NFV Space
• Corestack CLaaS : Orchestrates deployment of Openstack and SDN Controller
(ODL or BSC) for Training/Research
• Corestack Campus Network As a Service : Orchestrates the scheduling of
Network for shared environment
• Corestack Application Network Optimizer: Optimizes the Network Priority to
improve Quality of calls in Skype for Business.
• Corestack Multi-Cloud Orchestrator can deploy and perform multiple actions on
vRouter

20. Contact Information
Email address:
sabapathy@cloudenablers.com
Visit Us @ www.cloudenablers.com | www.corestack.io
Thank you

21. Glossary of terms
• Physical Network
• Virtual Network
• Network Virtualization
• Network Functions
• Overlay Network
• Underlay Network
• VLAN