This action attribute, when specified, will cause the value contained in the user priority field of the 802.1Q frame to be updated based on the value of this object. Specifying a value equal to 'ignore(9)' means that no action will be taken related to this attribute. Specifying a value equal to 'deriveFromEgressDscp(10)' means that the value for this attribute will be assigned based on DSCP-to-user priority map information maintained in the system. The DSCP value specified for remarking in the ntnQosDsL2AccessElemActionRemarkDscp attribute will be used to determine the user priority. Specifying a value equal to 'deriveFromIngressTosPrec(11)' means that the value for this attribute will be assigned based on the value of the precedence bits in the IP Type-Of-Service (TOS) field, as defined in RFC 791. The eight precedence values, also referred to as Class Selector (CS) values, have a one-to-one correspondence with the eight 802.1p user priority values. Version 1/2 attribute.