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<div class="moz-cite-prefix"><tt>Hi Pete,<br>
<br>
Do you have any chance to run in debug mode to get some extra
info ?<br>
<br>
Regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
On 23.02.2015 10:49, Pete Kelly wrote:<br>
</div>
<blockquote
cite="mid:CAEWH9M-ULy9e6Rv2Y594uB0eqAaroqfbZGu9RVLwWq1ecbF2YA@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Bogdan
<div><br>
</div>
<div>As I said in my original post, I tried that already with no
success.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 12 February 2015 at 19:11,
Bogdan-Andrei Iancu <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:bogdan@opensips.org"
target="_blank">bogdan@opensips.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div><tt>Hi Pete,<br>
<br>
Try setting the tcp_accept_aliases global param to 1:<br>
tcp_accept_aliases = 1<br>
<br>
Regards,<br>
</tt><span class="">
<pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
</span>
<div>
<div class="h5"> On 12.02.2015 11:24, Pete Kelly
wrote:<br>
</div>
</div>
</div>
<div>
<div class="h5">
<blockquote type="cite">
<div dir="ltr">Bogdan
<div><br>
</div>
<div>In fact the TCP connection stays open (I
checked with netstat on port 28733 being open on
the remote host).</div>
<div><br>
</div>
<div>I think the problem is opensips is opening
(or is supposed to open) 5060 on the remote and
this is failing? I think it may be looking for
an already existing connection to 5060?</div>
<div><br>
</div>
<div>Pete</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 11 February 2015 at
20:11, Bogdan-Andrei Iancu <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:bogdan@opensips.org"
target="_blank">bogdan@opensips.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div><tt>Hi Pete,<br>
<br>
If the TCP connection (the one used to
received the SUBSCRIBE from end user)
went down, when sending an in-dialog
NOTIFY, OpenSIPS will refuse to open a
new TCP connection (the policy is to
accept connection, not to open
connections towards end-users).<br>
<br>
Can you check if this is your case ?<br>
<br>
Regards,<br>
</tt>
<pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
<div>
<div> On 11.02.2015 12:50, Pete Kelly
wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">
<div>I have been experimenting
recently with Presence over TCP
and noticed sometimes OpenSIPS
fails to send a NOTIFY for a
recent SUBSCRIBE, with a tcp_send
error in the logs.</div>
<div><br>
</div>
<div>I did some research and found
an old issue which seems to be
similar to this as the inbound
SUBSCRIBE TCP connection is on a
high port, yet the NOTIFY is to go
to port 5060. </div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://lists.opensips.org/pipermail/users/2013-May/025922.html"
target="_blank">http://lists.opensips.org/pipermail/users/2013-May/025922.html</a><br>
</div>
<div><br>
</div>
<div>The fix here is to set
tcp_accept_aliases =1</div>
<div><br>
</div>
<div>I tried this fix and it did not
resolve the issue. Looking in the
source code it seems OpenSIPS may
be trying to reuse an old/existing
TCP connection and is failing to
find one - it does seem to be
slightly intermittent too.
Sometimes (very rarely) it will
work, and it seems to be related
to how many other TCP connections
are open at the moment but I have
found it very very difficult to
pin down. In the end I got round
it by looping the TCP SUBSCRIBE
back to UDP and the OpenSIPS then
produces a NOTIFY/UDP no problem.
This solution is a bodge and I
would be interested to know if the
failure to tcp_send is a bug or
something I can detect and handle
in the config somehow?</div>
<div><br>
</div>
<div>Using OpenSIPS 1.11 latest, in
EXTRA_DEBUG mode this is the error
that is produced:</div>
<div><br>
</div>
<div>
<div>[19361]: ERROR:tm:msg_send:
tcp_send failed</div>
<div>[19361]: ERROR:tm:t_uac:
attempt to send to
'sip:111.111.8.146:5060;transport=tcp;lr'
failed</div>
</div>
<div><br>
</div>
<div>This is the inbound SUBSCRIBE
and 200OK... I am simply dealing
with this by calling
handle_subscribe('1');</div>
<div><br>
</div>
<div>
<div>T 2015/02/10 12:52:09.324134
<a moz-do-not-send="true"
href="http://111.111.8.146:28733"
target="_blank">111.111.8.146:28733</a>
-> <a moz-do-not-send="true"
href="http://192.168.0.113:5060" target="_blank">192.168.0.113:5060</a>
[AP]</div>
<div>SUBSCRIBE <a
moz-do-not-send="true"
href="mailto:sip%3Auser203@test-domain.com"
target="_blank">sip:user203@test-domain.com</a>
SIP/2.0.</div>
<div>Via: SIP/2.0/TCP
111.111.8.146:5060;egress-zone=DNS;branch=z9hG4bK5c628151ab895c5f2f45ed8bdafeda0d24504147.1569b0b8efc74f7daf3767cc97d0b38e;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a;rport.</div>
<div>Via: SIP/2.0/TLS
10.15.20.113:54999;branch=z9hG4bKfd5e7b1424014fc8de23205f0de3873e.1;received=188.39.51.2;rport=54999;ingress-zone=DefaultSubZone.</div>
<div>Call-ID: <a
moz-do-not-send="true"
href="mailto:a1922a193e1b6057@10.15.20.113"
target="_blank">a1922a193e1b6057@10.15.20.113</a>.</div>
<div>CSeq: 303 SUBSCRIBE.</div>
<div>Contact: <<a
moz-do-not-send="true"
href="mailto:sip%3Apkelly@test-domain-2.com"
target="_blank">sip:pkelly@test-domain-2.com</a>;gr=urn:uuid:683f87a0-e026-5f0a-b86b-58139361c7a4>.</div>
<div>From: <<a
moz-do-not-send="true"
href="mailto:sip%3Apkelly@test-domain-2.com"
target="_blank">sip:pkelly@test-domain-2.com</a>>;tag=359dbb1cb104d434.</div>
<div>To: <<a
moz-do-not-send="true"
href="mailto:sip%3Auser203@test-domain.com"
target="_blank">sip:user203@test-domain.com</a>>.</div>
<div>Max-Forwards: 15.</div>
<div>Record-Route:
<sip:111.111.8.146:5060;transport=tcp;lr>.</div>
<div>Record-Route:
<sip:111.111.8.146:5061;transport=tls;lr>.</div>
<div>Record-Route:
<sip:188.39.51.2:54999;transport=tls;apparent=remove;ds;lr;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a>.</div>
<div>User-Agent: Test.</div>
<div>Expires: 3600.</div>
<div>Event: presence.</div>
<div>Accept: application/pidf+xml.</div>
<div>P-Asserted-Identity: <<a
moz-do-not-send="true"
href="mailto:sip%3Apkelly@test-domain-2.com"
target="_blank">sip:pkelly@test-domain-2.com</a>>.</div>
<div>X-TAATag:
6ed63f01-3191-4a1f-b2a2-4121fb834f07.</div>
<div>Content-Length: 0.</div>
<div>.</div>
<div><br>
</div>
<div><br>
</div>
<div>T 2015/02/10 12:52:09.326218
<a moz-do-not-send="true"
href="http://192.168.0.113:5060"
target="_blank">192.168.0.113:5060</a>
-> <a moz-do-not-send="true"
href="http://111.111.8.146:28733" target="_blank">111.111.8.146:28733</a>
[AP]</div>
<div>SIP/2.0 200 OK.</div>
<div>Via: SIP/2.0/TCP
111.111.8.146:5060;received=111.111.8.146;egress-zone=DNS;branch=z9hG4bK5c628151ab895c5f2f45ed8bdafeda0d24504147.1569b0b8efc74f7daf3767cc97d0b38e;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a;rport=28733.</div>
<div>Via: SIP/2.0/TLS
10.15.20.113:54999;branch=z9hG4bKfd5e7b1424014fc8de23205f0de3873e.1;received=188.39.51.2;rport=54999;ingress-zone=DefaultSubZone.</div>
<div>Call-ID: <a
moz-do-not-send="true"
href="mailto:a1922a193e1b6057@10.15.20.113"
target="_blank">a1922a193e1b6057@10.15.20.113</a>.</div>
<div>CSeq: 303 SUBSCRIBE.</div>
<div>From: <<a
moz-do-not-send="true"
href="mailto:sip%3Apkelly@test-domain-2.com"
target="_blank">sip:pkelly@test-domain-2.com</a>>;tag=359dbb1cb104d434.</div>
<div>To: <<a
moz-do-not-send="true"
href="mailto:sip%3Auser203@test-domain.com"
target="_blank">sip:user203@test-domain.com</a>>;tag=e3eb1f19b04f8e78afd28f643f416b5f-9be8.</div>
<div>Record-Route:
<sip:111.111.8.146:5060;transport=tcp;lr>.</div>
<div>Record-Route:
<sip:111.111.8.146:5061;transport=tls;lr>.</div>
<div>Record-Route:
<sip:188.39.51.2:54999;transport=tls;apparent=remove;ds;lr;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a>.</div>
<div>Expires: 3600.</div>
<div>Contact: <a
moz-do-not-send="true"
href="mailto:sip:sa@222.222.200.79:5060;transport=tcp"
target="_blank"><sip:sa@222.222.200.79:5060;transport=tcp></a>.</div>
<div>Server: Test.</div>
<div>Content-Length: 0.</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</div>
</div>
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