NFV & SDN 정의와 국내외 적용현황

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2. 목차
2. NFV & SDN
1. Why NFV ?
3. Where are we ?
4. Where we go ?

3. Why NFV ?

4. Gartner Said
X86서버의50%가가상화되어짐
VM 간의통신폭증
18개월마다서버당가상머신수2배씩증가
2014년에네트워크트레픽의80%가서버간에서발생

5. •네트워크변경은어렵고, 위험하고, 느림
•트래픽의증가에대한대처가느림
•새로운서비스를추가하기위해서는비싼새로운기술추가
•막대한돈소요
계층적구조
일반적인네트워크구조
단일구조
폐쇄적
유연하지않음
Problem of Present Network Architecture
상하
트래픽중심설계

6. Heavy Increases of Network Traffic
Visual Networking Index Forecast, 2012-2017
Busy vsAverage Internet Traffic Growth
per Month of IP Traffic in 2017
네트워크트래픽증가
네트워크장비비용증가

7. Alternative ?
1. H/W 와S/W 분리
2. H/W 는x86
3. Software networking
4. Virtual Networking
네트워크장비비용을줄이자!!

8. Decoupling Hardware From Software
Custom Network OS
Custom ASIC HW
Standard Server
Network OS
Reduce $
Reduce $$

9. Software Virtual Network
유연성과확장성증대
소유/운영비용절감
필요에따른손쉬운Scale up / Down
프로그래밍으로네트워크추가/삭제/변경/업그레이드
Scale Up
& Down
Users
Speed
X86 H/W발전에따른성능강화
손쉬운운영과장애처리
VM 으로동작( 자원이동용이)
자동화(부하조절)

10. NFV & SDN

11. SDN ?
“ Software Defined Networking(SDN) is an emerging network architecture where network control is decoupled from forwarding and is directly programmable.. “
SDN의정의
Control 과Data Plane 분리
API 지원
x86
네트웍기능가상화
프로그램으로제어
SDN 의특징

12. •Configuration Interfaces
•CLI, GUI, REST API
•Policies
•RoutingFW/ NAT
•PolicyQoS
•VPN TerminationNetwork
•BridgingInterface Drivers
Separating Control From Data Planes

13. NFV ?
“Network design must be more agile and able to respond on-demand to the dynamic needs of the traffic and services running over it, Key enabling technologies for this include SDN (Software Defined Networking) and NFV (Network Functions Virtualization)“
NFV의정의
European Telecommunications Standards Institute

14. NFV & SDN
(Network Functions Virtualization)
NFV
SDN
(Software Defined Network)
네트워크장비에서H/W, S/W 분리
범용서버의가상화기반
네트워크기능가상화제공
Data 와Control Plane
프로그램으로제어
네트워크장비에서H/W, S/W 분리
Protocol

15. Difference between SDNandNFV
Software
Custom HardwarePurpose-built dedicateddevice
정형화된x86 서버의가상화환경내에다양하며융합적인네트워크장비를사용가능하게하는기술.
(firewall, switching, routing, ADC, BRAS, EPC, etc. )
능동, 신속성증대그리고투자비감소
NFV
SDN
Software Software
Hypervisor
x86 HardwareIndustry-standardserver
기존의Control-plane과Data-plane을분리하여지능적이며프로그래밍가능한Controller에서Control-plane을관장하는기술.
SDN Controller
Control plane
프로그래밍에따른혁신및자동화

16. NFV & SDN
Application, Policy
Network OS
Hardware Abstraction Layer
Hardware
(OF Switch)
SDN
Vyatta
Physical servers VMs
Orchestration

17. Where are we ?

18. Market Trend

19. Market Trend

20. Market Trend
http://www.ciobiz.co.kr/news/news/inovation/2897086_1822.html
홍원기KT 종합기술원장은지난해부터이슈가되기시작한소프트웨어정의네트워크(SDN) 기술이새해에는본격적용될것으로전망
KT는지난해부터`SDN 5개년계획`을시작해SDN을완전히안착시킨다는전략을실행중
김선태LG유플러스SD본부장은“새해에는네트워크기능가상화(NFV) 기술기반위에서다양한융합통신서비스를내놓을것”이라고말했다. NFV 기술은이동통신기지국기능을소프트웨어로구성해일반서버도기지국처럼활용할수있게해준다.
지난해내놓은인맥관리솔루션`유플러스내비서`나올IP 대화서비스`우와(Uwa)` 등이이러한NFV 기능위에서구현

22. NFVConcept

23. High-Level NFV Framework
VFVI:컴퓨팅,저장소, 네트워크기능을지원하는물리적하드웨어자원,가상화지원기능및VNF실행을지원하는기능제공
VNFs:여러응용프로그램을지원하기위한소프트웨어로개발된네트워크기능들의집합
VNFManagement:물리적그리고소프트웨어적자원관리,전달,VNF관리기능제공

24. 광주통합전산센터NFV Architecture
Vyatta
(Router)
WAPPLES V
(WAF)
Red Hat OpenStack
Ark Monitoring for Cloud
Red Hat OpenStack
KVM
X86 Server

25. Vyatta?
VPN
Router
Firewall
Virtual MachineSOFTWARENETWORKINGBGPOSPFIPSecOPENSTANDARDSOpenStackVMWareHyperVXenOPENARCHITECTURESKVMIPv4/IPv6
전세계에서가장광범위하게사용되고있는가상라우터
강력하고풍부한기능을보유한검증된Enterprise솔루션
상용X86 서버와모든가상화환경지원

26. Router
Firewall
VPN
Server
Router
Firewall
VPN
NFV & Vyatta?

27. VyattaUsed for

28. Problem & Solutions of Virtual Network
Solutions
Problem
SR –IOV
PCI PassThrough
(Single-Root I/O Virtualization )

29. PCI Pass-through

30. 1 G VS 10 G Traffic Test ( Packet Rate)
PCI Path-Through
Virtual Network

31. 상단 방화벽
부서 A 부서 B
상단 방화벽
부서 A 부서 B
NAT NAT
Reduce Hops

32. Where we go ?

33. Requests of DataCenter
비용절감과통합
복잡성제거
새로운서비스구성의신속성
서비스중심

34. NFV Application Evolution
Source : http://www.hp.com/hpinfo/newsroom/press_kits/2014/MWC/White_Paper_NFV.pdf

35. New Network Architecture
Vendor A
Vendor B
Vendor C
Open Source
SDN
Controller
Northbound API
Industry Standard
Control Protocols
Standard
Modeling
Language
CLI/API
EMS/NMS
Vendor A
CLI/API
EMS/NMS
Vendor B
Vendor C
CLI/API
EMS/NMS
Vendor
Specific
Management
Captive
Control
Plane
Industry
Standard
Protocols

36. H/W to Orchestration
Connection Services
Structural Services
Functional Orchestration
SERVICES
CONTROL
ORCHESTRATION
REST
Neutron
DNRM
Congress
Hydrogen
Helium
vADX
Service
Chains
ARB
Virtual
HARDWARE
Distributed
NETCONF/YANG,
OpenFlow
vVPN
vFW
…….
VYATTA
Services Layer
vRouter

37. Overlay Fabric Virtual Route Processor