Table of Contents
Internet Monitoring - Results
Outline of Talk
Why go to the effort?
Importance of Response Time
Perception of Poor Packet Loss
Our Main Metric is Ping
Ping Response vs Web Response 1/2
Ping Response vs Web Response 2/2
Ranked packet loss for 3 months
Sawtooth Effect
RAL Last 180 Days plot
Italian sites look similar to each other
Representative International HENP Site Loss Jan-95 thru Nov-97
Aggregation
Group Selection (all sites monitoring CERN)
Group Response Time Jan-95 Nov-97
Network Quiescence
Ping Loss Quality
Quality Distributions
Multi Collection Site Visualization
Intercontinental Grouping (Loss)
Top Level Domain Grouping (Loss)
TLD (Response Time)
Grouping Details
Recent Transoceanic trends
By Monitoring Site
CERN Monitoring TLDs
ESnet bytes accepted by site for Jan ‘98
US HENP Traffic Growth
Multi Router Traffic Grapher (MRTG)
Traffic Volume for Germany (DFN)
Capacity/Load Ratios
Bottlenecks
TracePing (Oxford)
Traceroute
GUI Traceroute (e.g. VisualRoute)
Summary
Summary
Summary
Summary
National Internet Measurement Infrastructure (NIMI)
Asymmetric One-way Delays
NIMI
Summary
More Information
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Author: cottrell
Email: cottrell@slac.stanford.edu
Home Page: http://www.slac.stanford.edu/grp/scs/net/talk.html
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