Check that the -s99,224 configuration switch was used during firmware download.
-s99,n Enables protocol trace generation by the software on the card. An 8-bit parameter is used to vary what channel (or timeslots) is to be traced. To trace one particular channel the least significant 5 bits are used to give the correct channel reference. To trace all 32 channels -s99,224 (128 + 64 + 32 = 224) is usually used. So the 8-bit word would be as follows:
For example -s99,193 is used to trace 1 channel. The 8-bit word would be:
More information can be found in the firmware configuration switch guide for your particular protocol in the $ACULAB_ROOT/firmware directory