As you can see from the below output one network hasnt been discovered. I ran dfm discover on it, but in the discovery log it dosnt show up.
D:\Program Files\NetApp\DataFabric Manager\DFM\bin>dfm network list
ID Network Prefix Length Hop Count Last S
earched Deleted
---- ------------------------------------------ -------------- ---------- ------
---------------- --------
130 10.38.0.0 16 bits 0 06 Nov
02:18 No
131 10.42.0.0 16 bits 0
No
132 10.48.0.0 16 bits 0 05 Nov
01:00 No
133 10.49.0.0 16 bits 0 05 Nov
09:52 No
134 10.50.0.0 16 bits 0 05 Nov
18:54 No
D:\Program Files\NetApp\DataFabric Manager\DFM\bin>dfm options list | findstr /i
discover
discoverAgents Enabled
discoverClusters Enabled
discoverEnabled Enabled
discoverHostInitEnabled Enabled
discoverHosts Enabled
discoverInterval 15 minutes
discoverNetworks Enabled
discoverTimeout 5 seconds
discoverVfilers Enabled
hostEnclosureDiscoveryEvents Disabled
networkDiscoveryLimit 15
serverAPILogExclude host-service-discover|dfm-about
snapshotDiscoveryEventsEnabled No