Why go to the effort?
Apparent quality of Internet getting worse as size and demands increase
Internet woefully under-measured & under-instrumented
Internet very diverse - no single path typical
Users need:
- realistic expectations, planning information
- guidelines for setting and validating SLAs
- information to help in identifying problems
- help to decide where to apply resources
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Notes:
increase in number of users, increase in power available at desktop and in servers, newer applications (more graphics based, video, voice etc.), need for better QoS.