Internet Monitoring - Results
Outline of Talk
Why go to the effort?
Why the focus on Ping
Importance of Response Time
Perception of Poor Packet Loss
Our Main Metric is Ping
Ping Response vs Web Response
Method
Architecture
Long Term Reports
Monthly Packet Loss
Graphical Analysis
Ranked packet loss for 3 months
Sawtooth Effect
RAL Last 180 Days plot
Ping Response & Loss between HEPNRC & Manchester Dec-Jan ‘97/98
Italian sites look similar to each other
Representative International HENP Site Loss Jan-95 thru Nov-97
Aggregation
Group Selection for Ping Loss Plots
Group Response Time Jan-95 Nov-97
Network Quiescence
Ping Loss Quality
Quality Distributions
Traffic Growth
Traffic Volume for Germany (DFN)
Traffic Volume for ESnet Italy Link
Traceroute
TracePing
Summary
National Internet Measurement Infrastructure (NIMI)
Asymmetric One-way Delays
More Information
PPT Slide
Email: cottrell@slac.stanford.edu
Home Page: http://www.slac.stanford.edu/grp/scs/net/talk.html
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