The value of tlsEgrMcGrpAdminQinqFixedTagVal
specifies the provisioned common value of the fixed
802.1Q tag of all the 'QinQ' SAP's in this Egress
Multicast Group.
The value 0 is used to indicate that the actual value
of the fixed tag will be defined implicitly by the
corresponding tag of the first SAP added to this Egress
Multicast Group.