Virtualisation and management of application service networks

Virtualisation and management of application service networks

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In a service ecosystem, organisations cooperate to achieve their goals. Some organisations provide application services while others consume these services, forming a web ofinterconnected services (referred to as service network). Multiple organisations or individuals (referred to as tenants) consume subsets of the services in a service network. They simultaneously share the same service network, which requires the virtualisation of the service network. The enactment and management of virtualised service networks is complex due to the heterogeneity in services, service networks, and tenants. This chapter analyses the characteristics of service networks and their virtualisation. It then presents an approach called Software-Defined Service Networking (SDSN) that applies the Network-as-a-Service (NaaS) model at the application level. This model is an abstraction of service network management functions that support the formation and management of virtualised service networks at runtime. We describe how a service network is virtualised and managed. We demonstrate the feasibility of our approach with a prototype implementation, and validate our support for the virtualisation and management of services networks.

Chapter Contents:

  • Abstract
  • 15.1 Introduction
  • 15.2 Service networks and their virtualisation
  • 15.2.1 Service networks
  • 15.2.2 Multi-tenancy in service networks
  • 15.2.3 Motivating scenarios
  • 15.2.4 General requirements for an approach to virtualised service networks
  • 15.3 SDSN: an approach to realising and managing virtualised service networks
  • 15.3.1 Managed service networks
  • 15.3.2 Virtual service networks
  • 15.3.3 Service network management interfaces and managers
  • 15.4 Management of virtualised service networks
  • 15.4.1 Configuration management
  • 15.4.2 Regulation management
  • 15.4.3 Evolution management
  • 15.4.4 Management policy: specification and enactment
  • 15.4.5 Management policy: examples
  • 15.5 Prototype implementation
  • 15.6 Evaluation
  • 15.6.1 Service network virtualisation
  • 15.6.2 Service network management
  • 15.7 Related work
  • 15.7.1 Support for service networks and their virtualisation
  • 15.7.2 Relating to SDN
  • 15.8 Conclusion
  • Acknowledgment
  • References

Inspec keywords: software defined networking; virtualisation; computer network management

Other keywords: application service networks; interconnected services; SDSN; service ecosystem; service network virtualisation; NaaS model; virtualised service network management; network-as-a-service model; software-defined service networking

Subjects: Computer communications; Computer networks and techniques; Network management

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