Added constants for manipulating GVLs and related GeoAreas

    } // end ipv6OverGeoConfigurationTypes

    group ipv6OverGeoConfigurationValues {

        const integer c_manualGvl := 0;

        const integer c_automaticGvl1 := 1;

        const integer c_automaticGvl2 := 2;

        const integer c_automaticGvl3 := 3;

        const charstring c_areaGvl0 := "GVL0";

        const charstring c_areaGvl1 := "GVL1";

        const charstring c_areaGvl2 := "GVL2";

        const charstring c_areaGvl3 := "GVL3";

    } // end ipv6OverGeoConfigurationValues

    group ethernet {

        /**