While trying to diagnose some multicast connectivity issues, much board swapping has led us to suspect that some of the intermittence is due to the card itself and/or its driver. Using the beacon server display at http://beacon.dast.nlanr.net as some sort of reference, all except one of our machines using Intel gigabit chip (PCI card or built-in) show up with red squares & loss of 40-60%. A change to a card with Broadcom chip eliminates problem completely - all squares go green.
At the moment the display at http://beacon.dast.nlanr.net shows about half the beacon clients as having multiple red squares with 40-60% loss. According to my theory, these machines are using Linux with Intel gigabit chips. Are any beacon users able to check this? chris Christoph Willing Ph: +61 7 3365 8350 QPSF Access Grid Manager University of Queensland
