Table of Contents
A Perspective on Passive Measurement
Outline
PPT Slide
PPT Slide
vBNS POP Architecture
What is OCxMON?
OCxMON Modes of Operation
What is a flow?
Flow volume for 1 week
Traffic by application (in bytes)
Traffic by application (in packets)
Traffic by application (in flows)
Web client averages
Characterization of application flows
Long-term traffic variability
Variability over multiple time scales
Flow size histogram - small flows dominate
Traffic from small flows
Packet size data
Packet size histogram (log scale)
Packet run lengths
Protocol overhead analysis
Specialized analyses
Specialized analyses cont.- ATM CLP-bit analysis
Specialized analyses cont. - Cell loss analysis
"Heavy Hitters"
AS Pairs Table
Real-time Active Flows Display
What we don't use OCxMON for (yet?)
Conclusions
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