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<div class="moz-cite-prefix">To explain: Each ICE candidate is
supposed to have a unique priority number associated with it. The
ICE code in rtpengine depends on this being true in several
places. If it encounters two ICE candidates with the same priority
number then it triggers this warning to the log, and ultimately
the ICE negotiation is then likely to fail. This can happen if the
remote ICE client is buggy (seen this before: duplicate priority
numbers in the SDP), or (gods forbid) there's a bug in rtpengine.<br>
</div>
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<div class="moz-cite-prefix">Cheers</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">On 29/10/2021 08.59, [EXT]
Stefan-Cristian Mititelu wrote:<br>
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<blockquote type="cite" cite="mid:1635512352150.44261@1and1.ro">
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<p>Hi,<br>
<br>
Out of curiosity, I've been skimming the sipwise rtpengine code
about this warning and found out that it happens when
"__tree_coll_callback()" callback function is called.<br>
<br>
Now, the above callback function is present in different places
that all reduce to calling "g_tree_insert_coll()" function in
./include/aux.h.<br>
<br>
Next, from what i see in "g_tree_insert_coll()" the above
callback is **only** called when there is already an old value
for the given (key, value) pair. In other words, there
is already an "old ice pair" there.<br>
<br>
Hope this helps.<br>
<br>
Thank you,<br>
Stefan<br>
<br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
sr-users <a class="moz-txt-link-rfc2396E" href="mailto:sr-users-bounces@lists.kamailio.org"><sr-users-bounces@lists.kamailio.org></a> on
behalf of M S <a class="moz-txt-link-rfc2396E" href="mailto:shaheryarkh@gmail.com"><shaheryarkh@gmail.com></a><br>
<b>Sent:</b> Friday, October 29, 2021 1:28 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:keffa@alcall.net">keffa@alcall.net</a>; Kamailio (SER) - Users Mailing
List<br>
<b>Subject:</b> Re: [SR-Users] RTPENGINE [ice] Priority
collision between candidate pairs</font>
<div> </div>
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<div>It's just a warning, you can ignore it or explain what
is the exact nature of problem you are facing?</div>
<div><br>
</div>
<div>--</div>
<div>Muhammad Shahzad Shafi</div>
<div>Tel: +49 176 99 83 10 85</div>
<div><br>
<br>
Sent from my Huawei P40 5G phone</div>
</div>
<div style="line-height:1.5"><br>
<br>
-------- Original message --------<br>
From: <a class="moz-txt-link-abbreviated" href="mailto:keffa@alcall.net">keffa@alcall.net</a><br>
Date: Fri, 29 Oct 2021, 10:41<br>
To: "Kamailio (SER) - Users Mailing List"
<a class="moz-txt-link-rfc2396E" href="mailto:sr-users@lists.kamailio.org"><sr-users@lists.kamailio.org></a><br>
Subject: [SR-Users] RTPENGINE [ice] Priority collision
between candidate pairs<br>
<blockquote>Hello @everyone<br>
<br>
Please can you explain me how this message is errors or
not ?<br>
<br>
« Oct 29 08:34:44 ip76 rtpengine[649]: WARNING:
[YGiXZ1MmIA port 30104]: [ice] Priority collision between
candidate pairs 9oZd7sWNVguf6cgl:e4b19f6635447b850 »
<br>
<br>
thank<br>
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