Ideal Measurement Methodology

• Measure traffic where it enters the network

  • Input link, destination address, # bytes, and time
  • Flow-level measurement (Cisco NetFlow)

• Determine where traffic can leave the network

  • Set of egress links associated with each network address
  • Router forwarding tables (IOS command ìshow ip cefî)

• Compute traffic demands

  • Associate each measurement with a set of egress links
  • Aggregate all traffic with same ingress, {egress}, and t

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