SDN 網路機制 於跨雲端運算之應用 陳俊良台灣科技大學電機系. Wireless Networks and Evolutional Communications Laboratory

Transcription

1 SDN 網路機制 於跨雲端運算之應用 陳俊良台灣科技大學電機系 Wireless Networks and Evolutional Communications Laboratory

2 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 2

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5 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 5

6 OpenFlow Techniques: 1. Separate data and control planes 2. Standard interface Advantages: 1. Easy to control flow 2. Open source Open network standard Techniques: 1. Open networking specification 2. Standard API Advantages: 1. High utilization of current devices 2. Rapidly deploying Overlay network Techniques: 1. Network virtualization solution 2. Overlay technique Advantages: 1. Connect the physical network 2. Flexibly deploying NFV(Network Function Virtualization) Techniques: 1. Software-defined functions 2. Single platform Advantages: 1. Provide service rapidly 2. Cost down 6

7 Service/ISP Solution /Device Provider Chip Provider 7

8 IC Design Software Development End-Device Production Operators & Service Provider Intel, Broadcom, Freescale, TI, Marvell, MTK, Centec Networks Microsoft, IBM, VMware, Oracle, Vello Cisco, ALU, NEC, Juniper, HP, Dell, Ericsson, NETGEAR, Brocade, Big Switch, Extreme Networks, Hitachi, IP Infusion, Spirent, Pica 8, Huawei, ZTE Verizon Wireless, DT,NTT, Google, Facebook, KDDI, SK Telecom, Baidu Some manufacturers provide commercial products. Most of developers adopt OpenFlow standard. Some manufacturers provide commercial products. Google is the successful case and Verizon field-test. 8 8

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10 Board Members 10 From: Open Networking Foundation

11 11 From: OpenDayLight

12 Controller OpenFlow Protocol Match Fields Main components of a flow entry in a flow table. Priority Counters Instructions Timeouts Cookie Openflow Switch OpenFlow Channel Flow Table Pipeline Group Table Flow Table NOX installation and configuration commands git clone git://noxrepo.org/noxcore cd noxcore/./boot.sh mkdir build/ cd build/../configure --with-python=yes make make check 2012; The Open Networking Foundation Spec

13 SDN controller switch control plane data plane OpenFlow switch control plane data plane switch control plane data plane switch control plane data plane SDN controller switch data plane switch data plane switch data plane switch data plane switch data plane switch data plane OpenFlow OpenFlow Distributed Control Hybrid Control Centralized Control switch control plane data plane switch control plane data plane switch control plane data plane switch control plane data plane 13

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18 SDN Product Strategy SDN Device Network Virtualization SDN Application Solution/Application Cisco: 3560-X, 3750-X series HP: 2920, 3500, 3800, 5400,6600, 8200 series. IBM: RackSwitch G8264 NEC: ProgrammableFlow Family Brocade: CES 2000, VDX 8770, MLX series Pica8: 3290, 3295, 3780, 3920 series VMware: VMware NSX Microsoft: Hyper-V 3.0 BigSwitch: FloodLight Cisco: One Platform Kit (OnePK) HP: HP Open Ecosystem Google: Traffic Engineering Redware: DDoS Protection 18

19 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 19

20 20 From: OpenDayLight

21 21 From : Google

22 Google s WAN is organized as two backbones : I-scale network : Carries user traffic; G-scale network : Carries traffic between datacenters. And G-scale network in which Google has deployed an OpenFlow powered SDN solution. 22 From : Google

23 23 From : Google

24 24 From: HP

25 25 From: HP

26 Network Virtualization 26 From: HP

27 Rules 27 From: Cisco

28 Attack Information 28 From : Data Center Journal

29 NEC Microsoft 29 From : NEC

30 30 From : A10

31 enodeb 1 Middlebox Phase1: SDN provides fine grained packet classification and flexible routing. A key factor in middlebox deployments is to balance the processing load to avoid overload. enodeb 2 Phase2: SDN switch can support some middlebox functionality. UE 1 enodeb 3 SDN Switch Internet and Other IP Networks UE 2 Path setup for UE by SDN controller 31 From :Bell Labs

32 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 32

33 Different manufacturers integration Products materiality Controller s performance issue Supplier unclear strategy Potential technical vulnerabilities Few use cases Network equipment replacement 33

34 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 34

35 Legacy Networks vs. SDN Networks Legacy SDN Control Plane Network OS Data Plane (Specialized Hardware) Separation Control Plane Network OS Data Plane (Forwarding Abstraction) a.1 control and data planes tightly-coupled b.1 control and data planes separated SDN Apps SDN Languages Controller (NetworkOS) Control plane and data plane separate Centralized and programmable controller Virtualization of the underlying network Client Server On-box a.2 distributed control of network equipments Server Client b.2 centralized, programmable control of network equipments e.g., Content Routing Mobilty a.3 single physical network Energy efficient forwarding b.3 Multiple, isolated, virtual networks a. Current networking technology b. SDN networking technology Source: Network Virtualization and Service Awareness Properties of FNs in ITU-T Q.21/SG13 35

36 Packet Capture Packet Filtering Packet Classification Switching/Routing Security SLA Slice 36

37 Mission: VM Deployed - Load Balancing Node Controller Node Controller VM VM VM VM VM VM Node Controller VM Secure Chanel Flow Table OpenFlow Switch NOX Controller 1. Packets Passing, Lookup, Forwarding 2. Match fields 3. Counters 4. Instructions User Monitor and manage the devices 37

38 Flowchart Packet In Start at table 0 Yes Match in table n? No Yes Update counters Execute instructions: update action set update packet/match set fields update metadata Goto- Table n? No Table miss Flow entry exists? Yes Execute action set No Figure : Flowchart detailing packet flow through an OpenFlow switch. Packet In Start at table ; The Open Networking Foundation Spec-1.3.1

39 Virtual Machine Deployment Mechanism 39

40 VM Placement Method: Round Robin Greedy Network Utilization Node Controller VM2 VM VM VM Node Controller VM1 VM4 Controller Cloud Controller Cluster Controller Storage Controller Walrus Agent Node Controller VM3 Node Controller VM3 VM VM4 VM Node Controller VM Bottleneck Node Controller VM1 VM2 Controller Cloud Controller Cluster Controller Storage Controller Walrus Agent 40

41 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 41

42 Inter-Cloud Computing Cloud A Services Inter-Changing Cloud B Virtual Machines Dynamic Migration Different Performance Orientation The link Availability becomes new performance indicator Systems need policies implementation enabling intelligent routing 42

43 System Overview 6. Light load 4.Trigger Event 5.Request / Transmit status 7.Redirect User 1.User Request Service 3.Heavy load 2. Load analysis Loading: CPU, Memory. 43

44 Sequence Diagram of Load Balancing Module In-Cloud SDN Operation Task Data Collection 1. Transmit cloud status Performance Analysis 2.Transmit the result Balance Trigger 3. Trigger the event Data Transmission 5.Request the other clouds statuses 6.Transmit the information 4.Transmit cloud s status & trigger event Balance Monitor 7.Transmit the parameters SLA Management CSLA Scheduling 8.Transmit the SLA information If there is no appropriate route, it will trigger the event to balance trigger Resource Allocation 9.Balancing the routers loading 44

45 The Concept of System Operation & Architecture 45

46 Testbed Environment 46

47 Schematic Diagram Cloud A SDN Controller Cloud B OFS1 OFS2 OFS3 OFS5 Cloud C OFS4 Cloud D B Cloud E 47

48 Cloud A Loading Analysis 48

49 Cloud B Loading Analysis 49

50 Throughput Analysis 50

51 Link Utilization 51

52 Introduction SDN Industry Overview SDN Development Challenge Cloud Computing with SDN Networking Inter-Cloud Computing with SDN Networking Conclusion 52

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