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HI<br>
<br>
I did the trace using ngrep:<br>
ngrep -T -W byline -d any port 5060<br>
<br>
And I am confused with tm retran.<br>
<br>
(1) case one<br>
tm module, the<code class="varname"> retr_timer1</code> default is
500 ms.<br>
<br>
#U +0.001824 xxx.17:5060 -> xxx.16:5060<br>
INVITE <a class="moz-txt-link-freetext" href="sip:224@172.16.8.49:2057;line=lnzlkxu5">sip:224@172.16.8.49:2057;line=lnzlkxu5</a> SIP/2.0.<br>
<br>
#U +0.000012 xxx.17:5060 -> xxx.16:5060<br>
INVITE <a class="moz-txt-link-freetext" href="sip:224@172.16.8.49:2057;line=lnzlkxu5">sip:224@172.16.8.49:2057;line=lnzlkxu5</a> SIP/2.0.<br>
<br>
the ngrep show the delta between packet, the second invite is only 12
ms behind? <br>
is my understanding correct?<br>
<br>
(2) change retr_timer1 to 2000 ms<br>
<pre class="programlisting">modparam("tm", "retr_timer1", 1000)
</pre>
<br>
#U +0.001936 xxx.17:5060 -> xxx.16:5060<br>
INVITE <a class="moz-txt-link-freetext" href="sip:224@172.16.8.49:2057;line=lnzlkxu5">sip:224@172.16.8.49:2057;line=lnzlkxu5</a> SIP/2.0.<br>
<br>
#U +0.000013 xxx.17:5060 -> xxx.16:5060<br>
INVITE <a class="moz-txt-link-freetext" href="sip:224@172.16.8.49:2057;line=lnzlkxu5">sip:224@172.16.8.49:2057;line=lnzlkxu5</a> SIP/2.0.<br>
<br>
the delta still 13 ms behind, so similar to the case 1,<br>
<br>
<br>
The question is: is the second invite the re-trans by tm?<br>
If so why it is around 12/13 ms? not the 500 ms or as configured 2000
ms?<br>
<br>
<br>
<br>
<br>
thanks.<br>
<br>
<br>
<pre>Kind regards / Mit freundlichen Grüßen
Min Wang
</pre>
<br>
<br>
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