A list of VLANs with restricted access from dynamic
ports. This list takes the form of a group of VLANs
and a group of ports permitted for those VLANs. If no
entry exists for a particular VLAN then there are no
restrictions as to what ports are allowed to access
that VLAN. If entries exist for a VLAN, then all ports
not explicitly permitted for that VLAN are denied
access (in the form of a failed configuration
response).