Aggregation/Grouping
Critical for 14 monitoring sites & > 500 links
Group measurements by:
- area (e.g. N. America W, N. America E, W. Europe, Japan, Asia, others, or by country, or TLD)
- trans-oceanic links, intercontinental links, crossing IXP
- ISP (ESnet, vBNS/I2, TEN-34...)
- by monitoring site
- one site seen from multiple sites
- common interest/affiliation (XIWT, HENP, Expmt …)
Beware: reduces statistics, choice of sites critical