On Tuesday, March 29, 2011 11:25:26 am Les Mikesell wrote: > On 3/29/2011 9:50 AM, Lamar Owen wrote: > > I had lots of devices just give up under the sustained 5Mb/s multicast load. > > I assume that was back in 10Mb/s ethernet days? No; but the devices in question have 10Mb/s NIC chips. That's all that's needed for a single-port RS-232 terminal server, or a remote weather station. Just have to filter multicast and rate limit broadcasts. The backbone is gigabit, and the switches all have either 10/100/1000 or 10/100 ports. No, that event happened two weeks ago, thanks to a misbehaving megapixel IP camera.