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GENI I&M Update: MD Objects and Descriptors. Goals Architecture Overview Process Functional Services Measurement Data Flows/Transfers Measurement Traffic Flows Principal Use Cases Types of Services Control Framework Implications Measurement Data Objects and Descriptors

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geni i m update md objects and descriptors
GENI I&M Update:MD Objects and Descriptors
  • Goals
  • Architecture Overview
    • Process
    • Functional Services
    • Measurement Data Flows/Transfers
    • Measurement Traffic Flows
    • Principal Use Cases
    • Types of Services
    • Control Framework Implications
    • Measurement Data Objects and Descriptors
    • Controlling Access to Measurement Data Objects
    • Current Status
  • Current I&M Design and Prototyping Efforts
  • I&M Service Deployments
  • References:
    • I&M work in progress: http://groups.geni.net/geni/wiki/GeniInstMeas
    • I&M capabilities catalog: http://groups.geni.net/geni/wiki/GENIIandMCAPCAT
    • I&M architecture document: http://groups.geni.net/geni/wiki/GeniInstrumentationandMeasurementsArchitecture
    • Available I&M tools: http://groups.geni.net/geni/wiki/GeniInstMeas#AvailableGENIIMTools
geni i m architecture overview measurement data md objects
GENI I&M Architecture Overview:Measurement Data (MD) Objects
  • GENI MD Objects include:
    • Packet flows and streams
    • Directories and files
    • Persistent digital objects
    • Data structures accessed by querying a data base
    • Data structures accessed through a web portal GUI
  • Each MD Object has an associated MD Object Descriptor (MDOD)
    • Commonly called “metadata”
measurement data object descriptor mdod
Measurement Data Object Descriptor (MDOD)
  • Each MD Object Descriptor follows one common data model :
    • Elements and values for data model under study
    • Some will be Mandatory and some will be Optional
    • Information from data model must be translated into appropriate schema for use in different parts of GENI
  • Mandatory elements in a MD Object Descriptor are expected to include:
    • Identifier and Locator elements, for finding the MD Object.
    • Object Type and Measurement Data Schema elements, for interpreting the MD Object by programmatic means.
    • Other descriptive elements, e.g., Subject, to facilitate searching for MD Objects.
    • Annotation elements, added to provide “standardized lab notes”.
    • Owner/creator, previous holder(s), current holder
    • Policy elements, to specify how the MD Object can be shared or disposed.
  • The associated MD Object Descriptor is created at the same time an MD Object is created within an Experimenter’s or Operator’s slice,
    • The Experimenter or Operator that collects the MD “owns” the MD, and sets the policy for how it can be stored or disposed