performance evaluation (active)

• network engineers to diagnose problems

• ISPs & users to verify SLAs & application performance

• Internet weather

• variations of traditional tools (ping & traceroute) used in most initiatives, e.g. NLANR/MOAT, SLAC, IPWT, Surveyor, commercial services (also treno, mping, & techniques measurement app perf.)

• passive methods emerging

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