How to correlate carmel ASIC output to actual ethernet port?

On a Nexus 5548UP I have a 10G SM port receiving CRC errors but upstream is not sending errors. I think the receiving switch is stomping the CRC, but I cannot match up the output from "show hardware internal" to the actual port to know for sure.
Running this command I can see the ASIC number and port ID:
switch# show hardware internal carmel port ethernet 1/29 | include instance|mac
carmel instance : 3 <- asic ID
mac port : 4 <- port ID
fw_instance : 4
mac status polling : 1
Then I am running this command to check for stomps, but I cannot tell which line(s) of output correspond to the port in question.
switch# show hardware internal carmel asic 3 counters interrupt match stomp
Slot 0 Carmel 3 interrupt statistics:
Interrupt name |Count |ThresRch|ThresCnt|Ivls
-----------------------------------------------+--------+--------+--------+----
car_fi4_INT_fi_rx_pkt_crc_stomp |1 |0 |1 |0
car_fi5_INT_fi_rx_pkt_crc_stomp |bc4d5 |0 |1 |0
car_fi6_INT_fi_rx_pkt_crc_stomp |817d5 |0 |1 |0
car_fi7_INT_fi_rx_pkt_crc_stomp |bc474 |0 |4 |0
car_bm4_INT_norm_igrd_crc_stomp |bc52c |0 |4 |0
car_bm4_INT_norm_egrd_crc_stomp |1 |0 |1 |0
car_bm5_INT_norm_egrd_crc_stomp |bc4d5 |0 |1 |0
car_bm6_INT_norm_egrd_crc_stomp |817d5 |0 |1 |0
car_bm7_INT_norm_igrd_crc_stomp |1 |0 |1 |0
car_bm7_INT_norm_egrd_crc_stomp |bc474 |0 |4 |0
car_fw4_INT_ig_pkt_err_eth_crc_stomp |3e |0 |2 |0
car_fw4_INT_eg_pkt_err_eth_crc_stomp |1 |0 |1 |0
car_fw5_INT_eg_pkt_err_eth_crc_stomp |bc4d5 |0 |1 |0
car_fw6_INT_eg_pkt_err_eth_crc_stomp |817d5 |0 |1 |0
car_fw7_INT_ig_pkt_err_eth_crc_stomp |1 |0 |1 |0
car_fw7_INT_eg_pkt_err_eth_crc_stomp |bc474 |0 |4 |0
car_mm4_pb_INT_buf_ecc_crc_rx_crc_stomp |3e |0 |2 |0
car_mm4_pb_INT_buf_ecc_crc_tx_crc_stomp |1 |0 |1 |0
car_mm5_pb_INT_buf_ecc_crc_tx_crc_stomp |bc4d5 |0 |1 |0
car_mm6_pb_INT_buf_ecc_crc_tx_crc_stomp |817d6 |0 |2 |0
car_mm7_pb_INT_buf_ecc_crc_rx_crc_stomp |1 |0 |1 |0
car_mm7_pb_INT_buf_ecc_crc_tx_crc_stomp |bc474 |0 |4 |0
Done.
Is it as simple as all of the lines above that have '4' in the name (like car_fi4_INT_fi_rx_pkt_crc_stomp) correspond to the port I am concerned with?
I have checked MTU and and cleaned / reseated the fibers on both ends.

An update to my problem. Apparently I misunderstood the concept behind channels and tasks in DAQmx. With the same type of output I could really just have grouped the two channels under the same task. All I had to do was to call the DAQmxCreateAIVoltageChan twice and specifiy the two different output terminals for the two channels. Both of which will be regulated under the same sample clock.
After that I called the DAQmxWriteAnalogF64 function once, specifying the "dataLayout" parameter to DAQmx_Val_GroupByScanNumber, which should output the sample array interleavingly.
The program now outputs two identical waveforms synchronized by the same sample clock.
However the second problem remains. What happens when I want to vary the frequency of the second channel? A simple and obvious solution would be to write and equal number of samples for both channels and just change the value of the sample for the second channel according to the frequency. However this would result in a gigantic array if I have to add more channels later on.
Is there any way around this?
Thank you
Howard

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