Sometimes you may notice that the B-channels appear to restart on their own periodically, without having been in use. This may occur during or after business hours, and instances in the log will often look similar to the messages below:
logger.c: -- B-channel 0/2 successfully restarted on span 1
logger.c: -- B-channel 0/3 successfully restarted on span 1
logger.c: -- B-channel 0/4 successfully restarted on span 1
logger.c: -- B-channel 0/5 successfully restarted on span 1
logger.c: -- B-channel 0/6 successfully restarted on span 1
logger.c: -- B-channel 0/7 successfully restarted on span 1
logger.c: -- B-channel 0/8 successfully restarted on span 1
logger.c: -- B-channel 0/9 successfully restarted on span 1
logger.c: -- B-channel 0/10 successfully restarted on span 1
logger.c: -- B-channel 0/11 successfully restarted on span 1
logger.c: -- B-channel 0/12 successfully restarted on span 1
logger.c: -- B-channel 0/13 successfully restarted on span 1
logger.c: -- B-channel 0/14 successfully restarted on span 1
logger.c: -- B-channel 0/15 successfully restarted on span 1
logger.c: -- B-channel 0/17 successfully restarted on span 1
logger.c: -- B-channel 0/18 successfully restarted on span 1
logger.c: -- B-channel 0/19 successfully restarted on span 1
logger.c: -- B-channel 0/20 successfully restarted on span 1
logger.c: -- B-channel 0/21 successfully restarted on span 1
logger.c: -- B-channel 0/22 successfully restarted on span 1
logger.c: -- B-channel 0/23 successfully restarted on span 1
This is normal behavior for Asterisk, if the resetinterval setting is enabled. This will tell Asterisk to restart B-channels that have been idle for a specified length of time.
In order to check and/or disable reseinterval you will need:
Open chan_dahdi.conf (usually located in /etc/asterisk/)
Use search function of your editor and look for resetinterval
If resetinterval is not set to 0 means that it's enabled
you can set resetinterval to 0 in order to disable this features
Once you have changed this setting, you will need to restart Asterisk for the change to take effect.
Note: Prior 1.8 resetinterval=3600 was enabled by default, if you don't see this option stated in the configuration files (or any of include files) this option will be enable, after 1.8 this option is disable by default .
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