Tested the new Dude on a CCR1036 but it seems it has a problem to keep up with polling the devices. I get ping failures and empty SNMP values. CPU und Filesystem usage is low so I guess there is a limit in concurrent SNMP/Polling operations. Same config on 4.0b3 on Windows runs but has some hickups sometimes. I've about 1000 ROS Devices and 100-200 other SNMP devices monitores.

@MT It would be good to see what the DUDE is doing. So how many threads are doing SNMP or ROS polling. And maybe a setting for the number of parallel tasks.