Nuevas Redes con SDN. Bernardo Valladares Linares Extreme Networks Abril 22, 2015
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1 Nuevas Redes con SDN Bernardo Valladares Linares Extreme Networks Abril 22, 2015
2 Why SoGware Defined Networks? CogniKve Learning We Sense We consider We Relate We connect We Learn We Act We Explore We Innovate Input via Sensory System Sight Smell Taste Sound Touch Tone Mood Output via ApplicaKon and Transfer SDN Flow Input Match InstrucKon AcKon If This Then That IntuiKve modeling of the flow system. Similar to how we learn, enabling applicakon developers to use the network as a tool rather than a resource.
3 If a medical device connects to the network then send its traffic through the firewall Topology Services Analy?cs VPN If a device is found with a vulnerability then automa?cally redirect traffic to remedia?on server. AAA Skype for Business DNS/DHCP SDN Loca?on Services Firewall Business Applica?ons If a Skype (Lync) video call is ini?ated then apply dynamic priority and op?mal network path for the call. SIEM SIP/Voice Services If network demand from business applica?ons is high then rate limit any NeNlix traffic
4 SDN Benefits Openness Decouples the Kghtly coupled network architecture, and opens up the control plane and the associated protocol Agility SDN enables more flexible network control and management SDN promotes the rapid innovakon on networking technologies by programing the network SDN is considered as a promising way to enhance the networks.
5 Real- World SDN ONF Greenfield, Rigid Proprietary Vendors Vendor Lock- In ODL - Flexibility and choice APPLICATION LAYER Apps Open but controller- specific API Limited Applications Specific Applications Open, but vendor- led API Open MulK- Vendor- led API CONTROL LAYER INFRASTRUCTURE LAYER Network SDN Control SoGware Open southbound (OpenFlow only) Network Network Limited Network Services Network Proprietary controller With more features Proprietary interface Proprietary Proprietary Proprietary OpenDaylight- Based Controller Wi- Fi AnalyKcs Security Policy Flexible: Both Vendor- Specific and Open API Physical and Virtual Infrastructure (Extreme and 3 rd Party) Extreme s SDN Pla]orm
6 OneController
7 New Architectures TradiKonal Architectures Emerging SDN Architecture Vendor Specific Management Open Source SDN Controller Northbound API OneController CapKve Control Plane EMS/NMS CLI/API EMS/NMS CLI/API EMS/NMS CLI/API Industry Standard Control Protocols Industry Standard Protocols EMS, NMS, CLI and APIs specific to switch and to each vendor Proprietary control plane per device CommunicaKon protocol standardized for interoperability Centralized open control plane, non- vendor specific Normalized programming interface Standard control protocols and modeling language
8 SDN with MicrosoG Lync Solu?on Benefits Improved Quality of User Experience Automated, dynamic and adapkve QoS provisioning Validated QoS capabilikes and performance wired and wireless In- depth, contextual visibility into performance, call quality Simplified monitoring and troubleshookng of elements impackng user experiences and network performance.
9 SDN with Purview Leverage OpenFlow and OneController to forward the first N- packets of a new flow to the Purview (or other DPI) Engine Provides applicakon visibility in any OpenFlow network (proved with EXOS & OVS) Results are presented in OneView No full stakskcs, just the result of the applicakon fingerprinkng
10 SDN with VTN for DC A simple and consistent single- pane- of- glass web UI for user access and admin access. OpenStack orchestrator that manages and orchestrates the DC compute, storage and networking infrastructure. OpenStack offloads all network configurakon, management and orchestrakon to the Extreme Networks OneController. OneController specifically uses the Virtual Tenant Network (VTN) applicakon to provide mulk- tenancy and to stretch the tenant network across geographically dispersed DCs
11 SDN Challenges Inter- domain The Internet are managed by owners of different domains, which makes the centralized control doesn t work for inter- domain Scalability Centralized control could not scale to a very large network (may work for a data center or a campus, but not Internet scale) Use cases To improve the feasibility in real world Security Mgmt, Data
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