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can we use Wireshark to capture 100GbE raw ethernet frames?

Hi all!

We are going to implement a 100GbE interface on FPGA without using any UDP/TCP IP stack. So we will not be assigning any IP address to the FPGA board. The FPGA will just send the raw ethernet frames to PC. For PC side, we will use Intel Network Card and PCIe 4.0 m.2 to provide enough storage. In this case, is it still possible to use Wireshark to analyse and capture the data?

Any guidelines would be helpful.

Thank you, Best regards, Pushpa

pushpa's avatar
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pushpa
asked 2022-03-08 09:43:36 +0000
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Capturing high speed is NOT something you should do with Wireshark. 100 GB/s propably requires a serious dedicated system just to capture it.

hugo.vanderkooij's avatar
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hugo.vanderkooij
answered 2022-03-08 10:48:39 +0000
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Thank you for the quick reply. We will be using a dedicated system. Is it still not a good idea to use Wireshark?

Best regards, Pushpa

pushpa's avatar pushpa (2022-03-11 00:49:17 +0000) edit
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Capturing the 100GbE traffic will be a challenge as @hugo.vanderkooij already mentioned. As for being able to analyze the data that is generated by the FPGA: as long as the FPGA generates packets that mimic protocols that Wireshark understands, then wireshark will fully dissect the packets. If the ethernet payload is random data or some protocol that wireshark does not understand, then the dissection will stop after the ethernet layer.

SYN-bit's avatar
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SYN-bit
answered 2022-03-08 11:32:57 +0000
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Thank you for the guidance. Is there any other GUI programs (open source) that can be used?

Best regards, Pushpa

pushpa's avatar pushpa (2022-03-11 00:50:00 +0000) edit
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