Service Delivery Network
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Service Delivery Network






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Service Delivery Network Service Delivery Network Presentation Transcript

  • Francesco Masci Sun’s Solution for Designing Dynamic Service-Optimized Network Architecture: The Service Delivery Network (SDN)‏
  • SDN Goal
    • Service delivery at any time, from anywhere, to any device
    • Approach: consists of basic network building blocks, common network design patterns, integrated network components, and industry best practices
    • Provide: a set of network connectivity, routing, load balancing, and advanced security mechanisms
    • Purpose: flexible network infrastructure designs that provide high performance, scalability, availability, security, flexibility, and manageability
  • Services... (in SOA context)‏
    • Def : is an implementation of well-defined business functionality
    • Characteristics
      • self-contained (perform predetermined tasks)‏
      • loosely coupled (for independence)
      • can be dynamically discovered
      • have well defined interfaces and functions (for modularity)‏
      • can be aggregated to build composite services
    View slide
  • SDN Type of services
    • End-User Services (Presentation Tier)‏
      • Provided directly to end-users
      • Web, e-commerce, e-mail, collaboration
    • Supporting Services (Integration and Resource Tier)‏
      • Directly support end-user services but are not visible
      • Web or Application container,
    • Infrastructure Services (Management Tier)‏
      • Ease internal operation and support
      • internal DHCP, DNS, security or directory services
    View slide
  • SDN core design components represent the smallest, irreducible component within the pattern or architecture. These building blocks are assembled to provide systemic functionality. is defined as a generalized, reusable design solution to a recurrent network architecture design problem. An instance of a microarchitecture is the network design that results from applying the SDN methodology to a specific organization’s stated business and technical requirements
  • SDN Microarchitecture components
  • Phases in SDN Methodology
    • Select Products
    • Select Building Blocks
    • Select Patterns
    • Design the Logical Architecture
    • Define the Business Requirements
    • Define the Functional Requirements
    • Define the Service-Level Objectives
  • SDN Methodology Messaging infrastructure Case Study
  • Phase 1: Context
    • Business Requirements
      • The e-mail service must use protocols, such as SMTP, IMAP, POP3, HTTP
      • Users must be able to use an e-mail client or a WebBrowser to access their e-mail
    • Functional Requirements (components)‏
      • Messaging mail proxies
      • Messaging server
      • Directory servers
      • Mailbox store
    • Service-Level Objectives (SLO) -> SLA
      • Availability: 99,99%
      • Scalability: 2000 total subscriber
      • Latency: no greater than 5 second response time for e-mail access
  • Phase 3 – Strategies
    • Product selection and relations
  • Phase 3 – Building Blocks
    • Define the Service Component Types
  • Phase 3 – Building Blocks
    • Mapping Service Components to Service Domains
  • Phase 3- Select Pattern
    • Service Module Design Pattern or Logical Service Domain
  • Phase 3 – Logical Architecture
    • diagram shows the relationships among the service domains, Intelligent Service Routing (which provides the network path between the service domains), service delivery interface, and secondary access networks (used for integration)‏
  • Phase 4 – Mail Solution design L4-7
  • Phase 4 – Mail Solution design L3
  • Phase 4 – JES Solution design
  • Phase 4 – JES Solution design
  • Francesco Masci [email_address]