Mine is about the same, we have a ghost 6.5 console with over 100 pc's on our network, ghosting through a 2922C on the 4th floor, to a 3548 on the 1st (100BT connection) to the different pc's there, there all Dell optiplex with the built in 3c920 (905c integrated) and when we ghost the speed will start out at about 80mpm and slowly drop down to <1mpm, sometimes ghost sessions have taken 24 hours to complete...
Were using the ghost client software so they should be directed broadcasts instead of multicast correct?
Mike