<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">sorry for reposting -- I think this question belongs to both mailing list.<br>I am really stuck with this.<br><br>rr<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Forwarded Message ----<br>From: Rao Ramaratnamma <raramarat@yahoo.com><br>To: Christian Schlatter <cs@unc.edu>; users@openser.org<br>Sent: Tuesday, November 7, 2006 11:15:27 PM<br>Subject: Re: [Users] TM : retransmission timers<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">the ser ottendorf announcement does mention improved timers. Cannot openser include this feature too and cannot I merge ser
with openser for good timers? I am still trying to understand the difference between ser and openser but standart compliance seems to be very important matter!<br><br>Cannot people provide me with some hints? I am sure that I am not the only who is asking the difference between ser and openser. ser documentation does not appear uptodate, but the software as sannounced appears impressive. I have already asked this question but did not receive any answer. <br><br>thank you in advance!<br><br>rr<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message
----<br>From: Christian Schlatter <cs@unc.edu><br>To: users@openser.org<br>Sent: Tuesday, November 7, 2006 10:52:56 PM<br>Subject: Re: [Users] TM : retransmission timers<br><br><div>Greg Fausak wrote:<br>> Hello,<br>> <br>> I believe this is a well known bug.<br>> Granularity of timers is 1 second. So, if you sign up for a timer to<br>> be fired in 1 second it will happen anywhere between 0 seconds and 1 <br>> second.<br>> 2 seconds will happen between 1 and 2 seconds. I usually set up my<br>> timers to be 2, 2, 4, 8. There are VOIP providers that are pretty <br>> sticky about<br>> the first 500ms. If you are using one of them you're out of luck.<br><br>Yes, there is a timer process that wakes up every second to perform <br>retransmissions. I was actually quite surprised that OpenSER, which is <br>known to be very standards compliant, does not follow the RFC 3261 <br>retransmission timeouts. On
the other hand, the RFC 3261 timeout values <br>are just suggestions and standards compliant SIP UA must accept shorter <br>timeouts. Still it would be nice if OpenSER would support sub second <br>timers, this would allow for shorter fail-over times.<br><br>Christian<br><br>> <br>> I believe SER has made timer changes to support more exact timer<br>> intervals. They are a completely different camp, with a different feature<br>> set (although they share the same roots).<br>> <br>> -g<br>> <br>> <br>> On 11/7/06, Jean-François SMIGIELSKI <jf-smig@ibelgique.com> wrote:<br>>> Hello,<br>>><br>>> I made strange observations about the intervals between <br>>> retransmissions with the TM module.<br>>> In my experiments, I used the default parameters for the TM module <br>>> timers, and I sent an INVITE that cannot receive answers (it has a <br>>> well known R-URI
pattern that is forwarded to a place and port that <br>>> nobody listen).<br>>><br>>> When reading RFC3261, I expected to see intervals between <br>>> retransmissions of |500ms|1s|2s|4s|8s|16s|. 7 transmissions, during 32s.<br>>><br>>> But with OpenSER, (I have tested with the debian package 1.1.0-5 on a <br>>> debian etch, and the cvs sources for 1.1.0 or 1.0.1compiled by <br>>> myself), I can see intervals like <500ms, 2s, 4s, 4s,4s, ... until 26s <br>>> are spent (9 sendings). The first interval is sometomes very short <br>>> (40ms).<br>>><br>>> Altough I like the sequence of 4s separated transmissions, I do not <br>>> know why the first interval is so short, and why there is no sending <br>>> after 1s.<br>>><br>>> Did anybody observed such behaviours? Are they normal?<br>>><br>>> Thanks in advance!<br>>><br>>> JF
Smigielski.<br>>><br>>><br>>> ________________________________________________________________________<br>>> iBELGIQUE, exprimez-vous !<br>>> <a rel="nofollow" target="_blank" href="http://web.ibelgique.com/">http://web.ibelgique.com/</a><br>>><br>>> _______________________________________________<br>>> Users mailing list<br>>> Users@openser.org<br>>> <a rel="nofollow" target="_blank" href="http://openser.org/cgi-bin/mailman/listinfo/users">http://openser.org/cgi-bin/mailman/listinfo/users</a><br>>><br>>><br>>><br>> <br>> <br><br></div><div>_______________________________________________<br>Users mailing list<br>Users@openser.org<br><a rel="nofollow" target="_blank" href="http://openser.org/cgi-bin/mailman/listinfo/users">http://openser.org/cgi-bin/mailman/listinfo/users</a><br></div></div><br></div></div><br></div><br></div></div><br></body></html>