Slide 9 of 45
Notes:
Note X axis scale changes, shows ESnet sites much better for SLAC
Note big variations from month to month.
The poor U of Cincinnatti performance was a cause for concern since SLAC has a strong collaboration with them. Worked with various people to try and improve.
The appearance of SLAC as the worst in November is an anomaly caused by problems on one particular day between the monitoring host and the host being monitored.
The difference in the U of Colorado to SLAC and the Colorado State links is quite evident. U Colorado has a vBNS connection with good peering to ESnet, but Colorado State does not.
Poor performance between SLAC and the Stanford U Medical center (separated by 2 miles) was due to poor connectivity at MAE-West. This has now been bypassed with a uwave link.
Bad connectivity to Rome not reflected by other Italian sites.
UK sites (RL & Glasgow) have worse performance than between SLAC and Beijing or Slac & Novosibirsk.
