## Spirent TestCenter : How do I create iMix traffic in terms of load and frame sizes?

 Environment/Versions Spirent TestCenter iMix
 Answer iMix by Frame size              Selecting 'iMix' distribution for frames while creating a streamblock. iMix by Load percentage              Create individual streamblocks with desired load units and set the scheduling mode to "rate based" and enable "advanced interleaving" Notes : It is possible to calculate the total rate (FPS) when using iMix by "Frame Sizes" from calculating the average frame size and then calculating the rate at which to send the traffic. Example : Here are the calculations for iMix with frame sizes 64 (61%), 594 (21%), 1518 (18%) 61% of the time is 64+20 = 84 byte frames 21% of the time is 594+20 = 614 byte frames 18% of the time is 1518+20 = 1538 byte frames 61*84 = 5124 21*614 = 12894 18*1538 = 27684 5124+12894+27684 = 45702 45702/100 = 457.02 byte average frame size 457*8 = 3656 bits For a 1 Gig interface, 1,000,000,000/3656 = 273,522 fps would be the total rate of traffic
Attachments
 Attachment
 Attachment Description Calculator for PPS using individual streamblocks

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 Attachment Description Calculator for PPS using iMIX Distribution

Product : Spirent TestCenter,L2-3,Spirent TestCenter