near-term community gaps in measurement (1) (high impact tasks for next 1-2 years) problem diagnosis & response detection, location, isolation & reporting macroscopically, DHS (homeland security)'s GEWIS problem global early warning information system DNS BGP not so near term, needs support from performance low impact bandwidth estimation ideally single source scaling to Gbits/s & new NICs (interrupt coalescing) calibration against real paths w cross-traffic e2e trouble-shooting toolkit 'why?' tool SLA validation large scale RTT distributions, publically available