Systems

• Configuration

  • construction of network topology: layer 2, 3 connectivity, capacity, OSPF weights, customer and peer IP addresses, router locations

• Measurements

  • Performance (active – delay, loss, throughput; passive – link and node utilization)
  • Traffic demands

• Information model

  • physical level, IP level, router-complex level, abstract level
  • router attributes, link attributes

• Routing model

  • shortest-path routing, OSPF tie-break, multi-homing, interdomain routing
  • bookkeeping to accumulate traffic load on each link

• Visualization/analysis environment

  • querying to subselect links and nodes; histograms; what-if capabilities
  • coloring and sizing to illustrate link and node statistics

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