If no VLAN is configured on the radio interface,
this object configures the PSPF feature. Otherwise,
cd11IfVlanPsPacketForwardEnable is used to configure
the PSPF feature per VLAN. If it is 'true', PSPF is
on the radio interface and direct traffic between
wireless clients of the interface is not allowed.
If it is 'false', PSPF is disabled on the VLAN and
direct traffic between wireless clients of the
interface is allowed.