The value of tSapIngIPv6CritSrcIpPrefixList specifies the IP prefix list used as match criterion for the source ip address. The value specified for this object must correspond to a prefix list defined in tQosPrefixListTable. If the value of this object is empty then the values of the objects tSapIngressIPv6CriteriaSourceIpAddr and tSapIngressIPv6CriteriaSourceIpMask or tSapIngressIPv6CritSrcIpFullMask are used as source ip address match criterion. When this object is set to a non-empty value then the objects tSapIngressIPv6CriteriaSourceIpAddr, tSapIngressIPv6CriteriaSourceIpMask and tSapIngressIPv6CritSrcIpFullMask are reset to their default values by the system. Vice versa, when a new (non-default) value is provided for the objects tSapIngressIPv6CriteriaSourceIpAddr and tSapIngressIPv6CriteriaSourceIpMask or tSapIngressIPv6CritSrcIpFullMask then this object is reset to its default (empty) value by the system. An attempt to set tSapIngIPv6CritSrcIpPrefixList to a non-default value in combination with setting any of tSapIngressIPv6CriteriaSourceIpAddr and tSapIngressIPv6CriteriaSourceIpMask or tSapIngressIPv6CritSrcIpFullMask to (a) non-default value(s) is rejected by the system.