EMIX sequence which is a sequence of up to 16 letters from the following set, that can be repeated, where each letter is associated with the frame size below it: a b c d e f g h u v w x 64 128 256 512 1024 1280 1518 MTU custom 84 68 88 The u frame size is user configurable via the cienaCesBenchmarkEmixSequenceUFrameSize attribute while the h frame size is the maximum frame size configured at the entity level. If the h frame size is not configured at the entity level, h takes the value of the maximum frame size of the port under test. Letter v is the minimum frame size for IPv6 untagged or dot1q test frames, w is the minimum for IPv4 qinq test frames, and x is the minimum for IPv6 qinq test frames. The EMIX character set is available via table cienaCesBenchmarkEmixCharacterSetTable.