This represents a control table entry (command) to configure the tagged
and untagged ports on each slot per vlan. The first index of the entry is
the ifIndex of the VLAN and second index is the slot number of the ports.
When adding untagged ports to a VLAN, those ports maybe not be untagged ports
for another VLAN (assuming both VLANs use the ANY protocol filter). Such
ports must first be deleted from the other VLAN(s) or an error will occur.
The operation will succeed or fail in its entirety, no partial results on some of the ports.