We have installed CML for network simulation but we want to do some set up for monitoring of topology created in CML using Nagios or solarwinds. Is it possible to monitor CML devices using any monitoring tool?
CML is more of learning tool, what kind of Monitoring you looking to do ?
You can setup custom Monitor like Ping to CML, as Long as inside nodes are exposed to your NMS, you can Monitor the devices, i do not see any issue here.