There are MAC addresses in the dot1dTpFdbTable, at least in MOXA switches, that aren't being grabbed by UDT. The MOXA switches don't have a vmMembershipSummaryTable. VLAN information for the ports does exist in the dot1qPortVlanEntry(1.3.6.1.2.1.17.7.1.4.5.1.1) table. Unfortunately, the dot1qTpFdbPort table only has 1 MAC entry, these are layer 2 switches. If there were more advanced setting for what we can turn on or off, or ways to specify some of the query strings/data linking it would be appreciated.