is the maximum size (i.e. ``--buffer-sz 16:2:32``)
* List of values, up to 32 values, separated in commas (i.e. ``--buffer-sz 32,64,128``)
+* ``--imix <n>``
+
+ Set the distribution of packet sizes.
+
+ A list of weights must be passed, containing the same number of items than buffer-sz,
+ so each item in this list will be the weight of the packet size on the same position
+ in the buffer-sz parameter (a list have to be passed in that parameter).
+
+ Example:
+
+ To test a distribution of 20% packets of 64 bytes, 40% packets of 100 bytes and 40% packets
+ of 256 bytes, the command line would be: ``--buffer-sz 64,100,256 --imix 20,40,40``.
+ Note that the weights do not have to be percentages, so using ``--imix 1,2,2`` would result
+ in the same distribution
* ``--segment-sz <n>``