> I have now added yet another switch to the list of switches that do not > work in this environment (Extreme Networks Summit 400-48t). Perhaps > someone can suggest a change to the switch - someone previously > mentioned enabling 'fast port' but I have not seen anything like that in > the switch documentation. All the switches I'm currently playing with are unmanaged dumb things, but I suspect the person was suggesting fiddling the STP settings. Full STP can take some time to settle, as it checks for network loops. So most switches provide some sort of fast STP mode where the switch assumes there's just a single host. I don't think this is likely my problem, as dhcp is successfully completing. seph