measurement needs (logistics)


performance 
e2e measurements must be relevant to the user
bandwidth estimation tools 
single source vs two end point
available bw vs capacity
calibration against real paths w cross-traffic (requires link and other info from multiple providers)
infrastructural heterogeneity rendering harder by the minute

workload
longer traces 
tcp/ip headers, w options, other headers if possible
at least 24 hours 
concurrent at several places
several across time for trend analysis
(buy stock in RAID vendors now)
traffic matrices
same constraints as above
diverse locations
disa, enterprise, university, backbone, peering point, cdn's (e.g., akamai)

topology 
large scale traceroute coverage
overcoming problems in traceroute methodology
tracking topology at other layers
IPv6