Re: PRTCMNTRC *OUTFILE support.

On 05/11/2020 9:09 AM, Steve Pavlichek wrote:

When ever I do comm traces I save directly to “.pcap” which can be directly opened with wireshark.

TRCCNN SET(*OFF) TRCTBL(MYTRACECNN) OUTPUT(*STMF) TOSTMF('/trccnn.pcap' *YES)

If you run a comm trace (e.g. STRCMNTRC), that can be saved in pcap format by using the DMPCMNTRC command after you end the trace with the FORMAT(*PCAP) parameter.

FYI, if you're not familiar with the differences between TRCCNN and STRCMNTRC, TRCCNN captures packets within the IP layer while CMNTRC captures packets within the NIC device driver.

CMNTRC operates on a single line description while TRCCNN can capture across multiple lines. If IPsec is used, TRCCNN will capture unencrypted packets, while CMNTRC will capture encrypted traffic. (If TLS is used, both traces capture the encrypted traffic.)

TRCCNN is limited to approximately 4 KB per packet. When using an adapter that supports TCP Large Send Offload, outgoing packets could be up to 64 KB. CMNTRC can capture the entire packet, while TRCCNN can only capture the beginning of that packet.

--
Brian