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<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - NIC latency issue on the AsyncSniffer callback function"
href="https://bugs.dpdk.org/show_bug.cgi?id=1573">1573</a>
</td>
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<th>Summary</th>
<td>NIC latency issue on the AsyncSniffer callback function
</td>
</tr>
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<th>Product</th>
<td>DPDK
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
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<th>Component</th>
<td>DTS
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>npratte@iol.unh.edu
</td>
</tr>
<tr>
<th>CC</th>
<td>juraj.linkes@pantheon.tech, probb@iol.unh.edu
</td>
</tr>
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<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">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.
</pre>
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