This object specifies the native VLAN ID for layer
2 bridging. If this object is set to '0', there is
no layer 2 bridging native VLAN ID. Setting this
object will automatically update the dot1qPvid for
all interfaces in the Q-BRIDGE-MIB (if supported) to
the same value provided it is not '0'. The dot1qPvid
will be read-only. The dot1qPvid specifies the native
VLAN ID on each device interface. If this object is
'0', the return value of dot1qPvid is not valid.
If the device is attached to a VLAN port of an Ethernet
bridge or switch, then the device must have a non-zero
native VLAN ID, and that VLAN ID must also match the
VLAN ID of the port on the bridge or switch. The native
VLAN ID is the default VLAN ID for frames received that
are not otherwise associated with a VLAN ID.