[Asterisk-bugs] [Asterisk 0010248]: chan_iax2 VNAK storm seen

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
====================================================================== 
http://bugs.digium.com/view.php?id=10248 
====================================================================== 
Reported By:                stevedavies
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   10248
Category:                   Channels/chan_iax2
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.5 
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
====================================================================== 
Date Submitted:             07-20-2007 04:47 CDT
Last Modified:              07-20-2007 17:20 CDT
====================================================================== 
Summary:                    chan_iax2 VNAK storm seen
Description: 
Saw this happening on a customer between two boxes:

Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29274ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29285ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29294ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29305ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29314ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29341ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29351ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29360ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29369ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29378ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[-01] -- OSeqno: 064 ISeqno: 060 Type: IAX     Subclass:
LAGRP  
   Timestamp: 200069ms  SCall: 00061  DCall: 00059 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 011 ISeqno: 011 Type: IAX     Subclass:
VNAK   
   Timestamp: 29387ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
etc etc etc etc

It did stop eventually when:

Rx-Frame Retry[ No] -- OSeqno: 010 ISeqno: 014 Type: IAX     Subclass:
HANGUP 
   Timestamp: 30238ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
   CAUSE CODE      : 0

Tx-Frame Retry[-01] -- OSeqno: 014 ISeqno: 011 Type: IAX     Subclass: ACK
   
   Timestamp: 30238ms  SCall: 00061  DCall: 00047 [196.40.106.94:4569]
Rx-Frame Retry[ No] -- OSeqno: 014 ISeqno: 014 Type: IAX     Subclass:
VNAK   
   Timestamp: 30245ms  SCall: 00047  DCall: 00061 [196.40.106.94:4569]
Tx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass:
INVAL  
   Timestamp: 00000ms  SCall: 00061  DCall: 00047 [196.40.106.94:4569]
====================================================================== 

---------------------------------------------------------------------- 
 russell - 07-20-07 17:20  
---------------------------------------------------------------------- 
There have been some fixes in the past week related to this.  Please try
with the latest code in the 1.4 branch. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
07-20-07 17:20  russell        Note Added: 0067673                          
======================================================================