Introduction to SDN and NFV
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Transcript of Introduction to SDN and NFV
Agenda IntroductionMarket trendsEvolution of IT NetworksCurrent ChallengesSDN
SDN OverviewWhy SDN ?Traditional networks vs SDNSDN ControllersUse Cases
NFVNFV Overview NFV ArchitectureSDN and NFV together-Benefits
Cloudenablers in SDN and NFV Space
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.
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
SDN Overview Separation of control and
data planes
Network abstraction
Programmable data plane
Virtualization of the network
Automation and orchestration
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
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
SDN ControllersOpen 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)
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
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
NFVExample 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
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
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