NIC latency issue on the AsyncSniffer callback function

https://bugs.dpdk.org/show_bug.cgi?id=1573

Bug ID: 1573
Summary: NIC latency issue on the AsyncSniffer callback
function
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: DTS
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---

There exists a bug on i40e NICs where the AsyncSniffer does not capture sent packets forwarded by the callback function. As if now, it's unclear why this would be the case, but there is a temporary fix that adds a simple one second delay to the callback function and packet sniffing duration before sending out any packets. This temporary fix allows test cases to perform as expected on i40e devices while maintaining the output of other vendors as well. It is in the best interest of the framework to find a better solution to this problem, but for the time being, this temporary fix will suffice.

This ticket will remain open until such a time arises where a better solution is proposed once further research is conducted.

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