• CAIDA (skitter, macroscopic …)
• NLANR (e.g. AMP – active, PMA – passive)
• LBL (e.g. netest
• SLAC/FNAL (e.g. PingER, IEPM-BW)
• PSC (NIMI)
• RICE (INCITE)
• Europe: RIPE (Eu ISPs), PPMCG
• NWS
• Internet2 (PiPES, IETF/IPPM, Netflow)
• Sprint, ATT Research
• Commercial (Keynote, Matrix, internetweather…)
• For more see www.caida.org/analysis/performance/measinfra