[asterisk-bugs] [LibPRI 0014947]: Changes in LibPRI 1.4.10 cause E1 to drop during Siemens Realitis CPU switchover

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14947 
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Reported By:                shawkris
Assigned To:                mattf
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Project:                    LibPRI
Issue ID:                   14947
Category:                   General
Reproducibility:            sometimes
Severity:                   minor
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.24 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2009-04-21 18:21 CDT
Last Modified:              2009-04-21 18:32 CDT
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Summary:                    Changes in LibPRI 1.4.10 cause E1 to drop during
Siemens Realitis CPU switchover
Description: 
Asterisk is connected to a Siemens Realitis PBX via a Sangoma A102. The
Realitis contains two CPUs running active/passive but swaps the roles over
each night at midnight. The system can maintain calls whilst the switchover
is in progress.

Up until LibPRI 1.4.9, this CPU switchover went unnoticed by Asterisk.
However, since 1.4.10 Asterisk drops the E1 during the Siemens CPU
switchover.
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 (0103569) shawkris (reporter) - 2009-04-21 18:32
 http://bugs.digium.com/view.php?id=14947#c103569 
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"The system can maintain calls whilst the switchover is in progress."

By this, I mean the Siemens PBX can, by design, switch processors and
maintain calls. The physical ISDN link remains up during the switchover.

For this problem case, I would assume that any calls in progress would
have dropped since that is the behaviour of Asterisk when the ISDN
connection is dropped and re-established.

I will try forcing a processor switch and gather some more troubleshooting
data. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-04-21 18:32 shawkris       Note Added: 0103569                          
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