Transcript SDN
SDN (Software Defined Networking) Introduction Celia Huang Agenda • • • • • • • • • Software Defined Everything (SDx) What is SDN (Software Defined Networking) Why needs SDN New Network Topology Advantage of SDN Disadvantage of SDN HPE OpenFlow Enabled Switch HPE OpenFlow Configuration Example Summary 2 Software Defined Everything (SDx) – SDDC, SDS, SDC, SDN ■ SDDC (Software Defined Data Center) ■ SDS (Software Defined Storage) ■ SDC (Software Defined Compute) ■ SDN (Software Defined Networking) 3 What is SDN – SDN Introduction ■ SDN is a framework to allow network administrators to automatically and dynamically manage and control a large number of network devices, services, topology, traffic paths, and packet handling policies. 4 What is SDN – SDN Introduction (Cont.) ■ OpenFlow, the major protocol used in SDN. ■ Centralized control. ■ Separate Control Plane and Data Plane. Application Plane Control Plane Data Plane Traditional Topology SDN Topology 5 What is SDN – SDN Related Group Board ONF: Current Member of ONF: 6 Why needs SDN – Focus today • Network Challenges for Data Centers and Distribution Networks. – • Automation, configuration management, integration with other IT systems and maintenance are more difficult. SDN is fundamentally changing networking. – – New models improves biggest network challenges. SDN supports dynamic, scalable computing and storage. 7 Why needs SDN – Traditional Network Challenge Percent of respondents (N=286, multiple responses accepted) 8 New Network Topology – Traditional Network Topology ■ Control Plane and Data Plane are both located on the physical device (switch). Physical Device (switch) 9 New Network Topology – SDN Topology Application Plane Control Plane Data Plane 1. Control Plane: Makes decisions about where traffic is sent. 3. Data Plane: Forwards traffic to the next hop along the path to the selected destination network according to control plane logic. 10 Advantage of SDN ■ Centralized Control. ■ It can rewrite the destination IP address of a packet. ■ Commonality. – Can use third-party software. – Can protect vendor lock-in. ■ Automation. ■ Cheaper hardware and cost saving? 11 Disadvantage of SDN • Performance issues. • Lack of expertise. • Because SDN is a new technology, most in-house IT staff doesn’t have any experience. • Centralized point of failure. • Controller was hacked. • Controller was attacked. 12 HPE OpenFlow enabled switches ■ HPE has 17 series OpenFlow enabled switches. – 5130 series JG934A Protocol: OpenFlow 1.3 – 5900 series JC772A Protocol: OpenFlow 1.3 13 HPE OpenFlow Configuration Example – 5900 series ■ Create OpenFlow instance 1. ■ Associate VLANs 4092 and 4094 with the OpenFlow instance. ■ Activate the OpenFlow instance. 14 Summary ■ SDN is a framework to allow network administrators to automatically and dynamically manage and control a large number of network devices. ■ SDN topology is centralized control. ■ SDN separates Control Plane and Data plane. 15 References [1] Don Clark. Transforming the Network to Seize Business Advantage. (p.2, p.7, p.10) Retrieved from https://www.necam.com/docs/?id=30bb1560-6de4-4741-a54378e637f1287d [2] 張衛峰著，狄宇昌審閱 (2014)。深度解析SDN 。初版。基峯。 p.7, p.26, p.35, p.38, p.43, p.45, p.125 。 [3] Software-defined networking. Retrieved Oct. 5, 2016, from https://en.wikipedia.org/wiki/Software-defined_networking [4] software-defined.net (2016). What is Software-Defined Networking. Retrieved from: http://www.software-defined.net/networking.php [5] Nick Feamster. (2014, Sep. 04). M2.1: Overview of Control and Data Plane Separation [Video file]. Retrieved from https://www.youtube.com/watch?v=7wnztxyv74g [6] Franco Fantini, (2016, Mar. 08). SDN the latest trend in Data Centers. Retrieved from http://blogs.salleurl.edu/data-center-solutions/2016/03/sdn-the-latest-trend-indata-centers-e2016/ 16 References [7] SDN Tutorials. (2016) Difference Between Control Plane & Data Plane. Retrieved from: http://sdntutorials.com/difference-between-control-plane-and-dataplane/ [8] Nick Feamster. (2014, July. 23). What is SDN [Video file]. Retrieved from https://www.youtube.com/watch?v=oTwM3QGFgEk [9] Raj Jain. (2014, July. 10). Software Defined Networking (SDN): Part 1 [Video file]. Retrieved from https://www.youtube.com/watch?v=t_pHoe524u0 [10] Nirja Jha. (2014, Aug. 23). Advantages, drawbacks and why do we actually need SDN. Retrieved from https://www.youtube.com/watch?v=TuvHxJrezpI [11] Nick Feamster. (2014, July. 23). What is SDN (Software Defined Networking) [Video file]. Retrieved from https://www.youtube.com/watch?v=oTwM3QGFgEk [12] HPE website, (2016, Oct. 09), SDN Switches Portfolio. Retrieved from http://h17007.www1.hpe.com/au/en/networking/solutions/technology/sdn/portfolio.as px#.V_nJ_JN95n4 17 References [13] 劉誠明著，胡嘉璽審閱 (2014)。最快進入軟體定義網路SDN的第一本書。初版。 上奇資訊。 p.3-3。 [14] HPE website, (2016, Oct. 11), QuickSpecs HP 5130 EI Switch Series. Retrieved from https://www.hpe.com/h20195/v2/getpdf.aspx/c04394228.pdf?ver=9 [15] HPE website, (2016, Oct. 11), QuickSpecs HPE FlexFabric 5900 Switch Series. Retrieved from https://www.hpe.com/h20195/v2/GetPDF.aspx/c04111469.pdf [16] PIVOTALNETWORKs website, (2014). HP Networking product portfolio. Retrieved from http://pivotalnetworks.co.uk/wp-content/uploads/2014/08/HPNetworking.pdf [17] HPE website, (2015) , HP 5130 EI Switch Series OpenFlow Configuration Guide. Retrieved from http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=c04771714 [18] SDN Tutorials. (2016) What is Software Defined Everything – Part 1: Definition of SDx. Retrieved from: https://www.sdxcentral.com/cloud/definitions/softwaredefined-everything-sdx-part-1-definition/ [19] Raj Jain, (2015, Oct.28) Software Defined Networking Software Defined Networking at the Tactical Edge. Panel Presentation at IEEE MILCOM 2015 Conference, Retrieved from http://www.afcea.org/events/documents/sdn_mlc.pdf 18 References [20] HPE website, (2016, Oct. 12), HP 5920 & 5900 Switch Series OpenFlow Configuration Guide. Retrieved from http://h20566.www2.hpe.com/hpsc/doc/public/display?sp4ts.oid=5221896&docLocal e=en_US&docId=emr_na-c04089227 19