I have a MGMT Vlan that would be a good baseline for a weekly discover job to make sure we're seeing all of our network devices. What is the best method to use a VLAN as a metric for discovery?
Well if the VLAN has a routed subnet assigned to it, then you just goto Settings -> Network discovery and choose either subnet or ip range.
As mentioned, VLAN doesn't have anything to do with it. You discover via subnet or ip range. These are the options.
Would running a job to look for my VLAN in NCM and report back its assigned network be worth the trouble?
Something like a sh int command?
Router#sh int vlan777Vlan777 is up, line protocol is up , Autostate Enabled Hardware is Ethernet Description: TCOM_MGMT Internet address is 10.144.154.2/24
and give the last line as results?
Yes if you don't currently know the IP ranges used, then run a job to collect all the IP ranges. Using "sho ip int bri | i Vlan" might be an easier option to use.
