Performance Measurement

• Round-trip times (RTT) measurement
  • RTT measurements between vBNS POP pairs
  • min/max/avg values over previous 24 hour period
• Throughput measurements performed nightly
  • using OC12c/ATM-attached Sun Ultra-2 hosts in vBNS terminal nodes
  • tools: mping, ttcp and treno
• clickable map for test results for backbone links between node pairs on vBNS web

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