The value of tMacFilterParamsInnerTagMask is applied as a mask to VID
of the inner VLAN tag of the packet prior to comparing it
with tMacFilterParamsInnerTagValue. The inner tag is the second tag in
the packet that is carried transparently through the service
(the second tag after the service delimiting tags).
This object can only be set if tMacFilterType is set to 'vid(3)'.