Re: RDMA header inspection

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On 2/3/20 11:30 AM, Dimitris Dimitropoulos wrote:
> Hi,
> 
> I'm trying to inspect RDMA headers and they do not show up on
> wireshark. How can I observe RDMA headers ? Also, any header parser
> available in the code base that I can link to and use to process the
> headers ?

Usually RDMA packets will not be seen by the end nodes.
What is the link layer IB or RoCE?
If RoCE and you have a switch in the middle, you can probably run wireshark/tcpdump there.

If you are using a driver that implements the right flow steering API you could use libpcap:
https://github.com/the-tcpdump-group/libpcap

The APIs used:
https://github.com/the-tcpdump-group/libpcap/blob/master/pcap-rdmasniff.c

> 
> 
> Thank you.
> 
> Dimitris
> 

Mark



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