<html>
<head>
<base href="https://bugs.dpdk.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - dpdk-dumpcap not allowed to do multiple invocations on the same interface"
href="https://bugs.dpdk.org/show_bug.cgi?id=1608">1608</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>dpdk-dumpcap not allowed to do multiple invocations on the same interface
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>23.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<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>
<tr>
<th>Component</th>
<td>other
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>junwang01@cestc.cn
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">In practical use, many scenarios may require distinguishing between inbound and
outbound traffic based on matching rules, which would necessitate calling
dpdk-dumpcap twice on the same interface. However, it seems that this is not
supported at the moment. Additionally, even when using the --file-prefix
option, the same limitation applies.
The first invocation:
[root@xgw-dpdk /]# /dpdk/app/dpdk-dumpcap -i 0000:21:00.0
File: /tmp/dpdk-dumpcap_0_0000:21:00.0_20241227024137.pcapng
Capturing on '0000:21:00.0'
Packets captured: 108 ^C
The second invocation:
[root@xgw-dpdk /]# /dpdk/app/dpdk-dumpcap -i 0000:21:00.0
File: /tmp/dpdk-dumpcap_0_0000:21:00.0_20241227024149.pcapng
pdump_prepare_client_request(): client request for pdump enable/disable failed
EAL: Error - exiting with code: 1
Cause: Packet dump enable on 0:0000:21:00.0 failed File exists
</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
<link itemprop="url" href="https://bugs.dpdk.org/show_bug.cgi?id=1608">
<meta itemprop="name" content="View bug">
</div>
<meta itemprop="description" content="Bugzilla bug update notification">
</div>
</body>
</html>