Discussion What are the security implications of Onix Is Onix flexible and

Discussion what are the security implications of onix

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Discussion What are the security implications of Onix? Is Onix flexible and general enough for networking management? Are there applications you can run on a centralized network but not on a distributed one? CSE 222A – Lecture 6: Software Defined Networks 16
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Cloud Computing Elastic resources u Expand and contract resources u Pay-per-use u Infrastructure on demand Multi-tenancy u Multiple independent users u Security and resource isolation u Amortize the cost of the (shared) infrastructure Flexible service management u Resiliency: isolate failure of servers and storage u Workload movement: move work to other locations 17 CSE 222A – Lecture 6: Software Defined Networks
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Cloud Service Models Software as a Service (Saas) u Provider licenses applications to users as a service u e.g., customer relationship management, email, … u Avoid costs of installation, maintenance, patches, … Platform as a Service (Paas) u Provider offers software platform for building applications u e.g., Google’s App-Engine u Avoid worrying about scalability of platform Infrastructure as a Service (Iaas) u Provider offers raw computing, storage, and network u e.g., Amazon’s Elastic Computing Cloud (EC2) u Avoid buying servers and estimating resource needs 18 CSE 222A – Lecture 6: Software Defined Networks
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Multi - Tier Applications Applications consist of tasks u Many separate components u Running on different machines Commodity computers u Many general-purpose computers u Not one big mainframe u Easier scaling 19 Front end Server Aggregator Aggregator Aggregator … … Aggregator Worker Worker Worker Worker Worker CSE 222A – Lecture 6: Software Defined Networks
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Host Virtualization
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  • Fall '08
  • Vahdat,A
  • Computer network, The Network, Software Defined Networks

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