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Network-as-a-Service in software-defined networking for end-to-end quality of service provisioning

Network-as-a-Service in software-defined networking for end-to-end quality of service provisioning

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Software-Defined Network (SDN) is expected to have a significant impact on future networking.Although exciting progress has been made toward realizing SDN, application of this new networking paradigm in the future Internet to support end-to-end QoS provisioning faces some new challenges. The autonomous network domains coexisting in the Internet and the diverse user applications deployed upon the Internet call for a uniform Service Delivery Platform (SDP) that enables high-level network abstraction and inter-domain collaboration for end-to-end service provisioning. However, the currently available SDN technologies lack effective mechanisms for supporting such a platform. This chapter presents an SDP framework that applies the Networkas-a-Service (NaaS) principle to provide network abstraction and orchestration for end-to-end service provisioning in SDN-based future Internet. In order to address the new challenges brought in by resource abstraction enabled by NaaS to system modeling and analysis for QoS evaluation, a profile-based analysis method developed based on the network calculus theory is also presented in this chapter.

Chapter Contents:

  • Abstract
  • 11.1 Introduction
  • 11.2 End-to-end service provisioning in SDN-challenges and solutions
  • 11.2.1 Challenges to end-to-end service provisioning in SDN
  • 11.2.2 Network-as-a-Service in SDN-a promising solution
  • 11.3 NaaS-based service delivery in SDN
  • 11.4 Modeling and performance analysis for NaaS-based QoS provisioning in SDN
  • 11.4.1 Modeling and analysis
  • 11.4.2 Numerical examples
  • 11.5 Modeling and performance analysis for composite network-compute services
  • 11.5.1 Modeling and analysis
  • 11.5.2 Numerical examples
  • 11.6 Conclusion
  • References

Inspec keywords: cloud computing; software defined networking; quality of service

Other keywords: NaaS principle; profile-based analysis method; high-level network abstraction; SDP; network-as-a-service; QoS evaluation; Internet; end-to-end quality of service provisioning; SDN; service delivery platform; SDN-based future Internet; network calculus theory; networking paradigm; software-defined networking

Subjects: Internet software; Computer networks and techniques; Computer communications

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