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