The value of the object tIPv6ExcParamsSourcePortList specifies the port-list used as match criterion for the protocol source port. The value specified for this object must correspond to a port-list defined in tFilterPortListTable. If the value of this object is empty then the values of the objects tIPv6ExcParamsSourcePortValue1, tIPv6ExcParamsSourcePortValue2, and tIPv6ExcParamsSourcePortOperator are used as source port match criterion. When this object is set to a non-empty value then the objects tIPv6ExcParamsSourcePortValue1, tIPv6ExcParamsSourcePortValue2, and tIPv6ExcParamsSourcePortOperator are reset to their default values by the system. Vice versa, when a new (non-default) value is provided for one of the objects tIPv6ExcParamsSourcePortValue1, tIPv6ExcParamsSourcePortValue2, or tIPv6ExcParamsSourcePortOperator then tIPv6ExcParamsSourcePortList is reset to its default (empty) value by the system. Setting any one of the objects tIPv6ExcParamsSourcePortValue1, tIPv6ExcParamsSourcePortValue2, or tIPv6ExcParamsSourcePortOperator to a non-default value in combination with a non-default value for the object tIPv6ExcParamsSourcePortList is rejected by the system.