[asterisk-bugs] [Asterisk 0015712]: IAX call received and dialled out to another IAX peer: 100s of CONTROL/ACK/NACK exchanged as call is answered

Asterisk Bug Tracker noreply at bugs.digium.com
Wed Apr 14 17:34:13 CDT 2010


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15712 
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Reported By:                stevedavies
Assigned To:                dvossel
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Project:                    Asterisk
Issue ID:                   15712
Category:                   Channels/chan_iax2
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
Asterisk Version:           1.4.26 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 202671 
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2009-08-13 07:51 CDT
Last Modified:              2010-04-14 17:34 CDT
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Summary:                    IAX call received and dialled out to another IAX
peer: 100s of CONTROL/ACK/NACK exchanged as call is answered
Description: 

An incoming call is accepted over an IAX link, then dialled back out via
another IAX link to a different server (which in turn calls a 4th IAX peer
which in turns calls a SIP termination provider)

As the call is answered, there is a lengthy flurry of CONTROL (255?) and
CONTROL(20?) frames, with ACKs and NAKs etc etc.

Not exactly a packet storm - it does stop after a while.  But definitely
many many frames.

Note that this branch-1.4 SVN checkout has the SRCUPDATE-storm fix in it.

I've attached a full log showing a call coming in and being forwarded out,
including IAX2 protocol debugging.  Some freepbx dialplan junk in there but
the essence is a call coming in on a IAX trunk from one server is Dial()ed
out to another.


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---------------------------------------------------------------------- 
 (0120430) dvossel (administrator) - 2010-04-14 17:34
 https://issues.asterisk.org/view.php?id=15712#c120430 
---------------------------------------------------------------------- 
It has actually been fixed since 1.4.27, r225243 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-04-14 17:34 dvossel        Note Added: 0120430                          
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