I'm trying to do a bit of tune up for the DFM where I need to make a lot of discovered IP addresses on the managed routers as unmanaged IPs (so DFM does not try to probe them and does not fire up interface/reachability alarms). Some time ago Cisco had a perl script for the previous versions of DFM where one could specify a range of IPs that have to be unmanaged and the script in CLI would modify the state for those IPs. Apparently this script still works with the DFM from LMS 3.0, however there is a problem:
the command that script executes is /opt/CSCOpx/objects/smarts/bin/dmctl with some parameters. One parameter (getInstance IP) is suppose to list all the discovered IP addresses and it does list a lot BUT not all. I still have routers in DFM the IP addresses of which are not shown via this cli command and the script cannot make these missing IP addresses as unmanaged, as a result I'm still getting the unreachable alarms. To manually go via DFM's GUI and unmanaged IPs one by one is not really an option for about a thousand of IPs (could this be the CSCsg29309?)
Maybe the new DFM has some new option where a range of IPs can be specified as managed only and the rest of the discovered IP addresses will be ignored?
And as a side note, the c3500XL switches (the ancient but still in production) are reported as OperationallyDown for their management VLANs (could be another BUG?)