A string of octets containing one bit per
protected VLAN from VLAN IDs 3073 to 4094. The
first octet corresponds to VLAN IDs 3073 through
3080, the second octet to VLAN IDs 3081 through
3088, etc. Within each octet, the most significant
bit represents the lowest numbered VLAN ID, and
the least significant bit represents the highest
numbered VLAN ID.