I'm a bit confuse, what does rmon command on cisco devices provide on Solarwinds. Does it give any information other than that of SNMP?
I read info on rmon but all it say is that its part of SNMP. I have deployed Solarwinds quite a few times but never encounter rmon til now.
What context are you seeing the rmon command?
I found this pdf from Cisco detailing the Rmon commands:
If you are trying to monitor Rmon-related OIDs, you'll need to create a UnDP and include the OIDs you want to monitor. Here's a list of Rmon OIDs.