This action attribute, when specified, will cause the packet being evaluated to be associated with the specified relative drop precedence. The relative drop precedence may be used to determine traffic precedence relative to other traffic being processed by the device and other implementation specific operations at the egress interface. A low value for drop precedence equates to the traffic receiving a higher priority in terms of processing. In other words, traffic with a drop precedence of 1 is treated with the highest processing priority while traffic with a drop precedence of 8 receives the lowest processing priority. Specifying a value equal to useDefault(9) means that the value for this attribute will be assigned based on default information maintained in the system. The value specified in the 'UpdateDSCP' attribute will be used to determine the default drop precedence. Note that specifying useDefault(9) means that assignment of a value for this attribute is implementation dependent. Specifying a value equal to ignore(10) means that no action will be taken related to this attribute. Note that the results of classification where actions specifying ignore(10) are applied are implementation dependent. Specifying a value equal to useEgressMap(11) means that the value for this attribute will be assigned based on DSCP-to-drop precedence egress map information maintained in the system. The DSCP value in received traffic will be used to determine the drop precedence. Note that specifying useEgressMap(11) means that assignment of a value for this attribute is implementation dependent.