Connectivity: ESnet 2 of 2
Heavy use to transfer data from SLAC to IN2P3 (17-26Mbps continuous, 100GBytes/day, need TBytes/day)
No longer send tapes (latency goes from weeks to hours, less jitter, reduced labor (especially for errors))
In past weakness of International links protected ESnet from significant traffic
HEP can saturate links between major regional centers
Other major BaBar centers include: Oxford (RAL), Rome (INFN), Caltech, Colorado, LBNL, LLNL