The value of the object tIPv6FilterParamsExtPktLenVal1 specifies the packet length value1 to be compared to the value of the Payload Length field of an IPv6 packet header that has hit this filter's entry. The way how the value of this object is used depends on the value of the object tIPv6FilterParamsExtPktLenOper. The value of this object is evaluated only if the value of the object tIPv6FilterParamsExtPktLenOper is other than 'none (0)'. If the value of tIPv6FilterParamsExtPktLenOper is 'range (2)' then the value of this object must be less than the value of tIPv6FilterParamsExtPktLenVal2. If the value of tIPv6FilterParamsExtPktLenOper is 'lt (3)' then the value of this object can be set in range 1..65535. If the value of tIPv6FilterParamsExtPktLenOper is 'gt (4)' then the value of this object can be set in range 0..65534. If both the values of the objects tIPv6FilterParamsExtPktLenOper and tIPv6FilterParamsExtPktLenVal1 need to be changed then it must be done in the same SET SNMP request. Note that the value of this object is silently cleared by the system if tIPv6FilterParamsAction is set to a value other than 'drop (1)' or if tIPv6FilterParamsExtPktLenOper is set to 'none (0)' or if tIPv6FilterParamsExtHopLimitOper is set to a value other than 'none (0)'.