I have an Asterisk system running on T1 PRI trunks using a TE405P. It seems to be running ok, but one thing puzzles me. Every so often I get a raft of messages like this: -- B-channel 0/1 successfully restarted on span 1 -- B-channel 0/2 successfully restarted on span 1 ....... -- B-channel 0/22 successfully restarted on span 1 -- B-channel 0/23 successfully restarted on span 1 I could understand having them when starting up or when the D channel comes Up after having been Down, but I also get them during normal operation while calls are active. It doesn't seem to disturb those calls, as far as I can tell. Can anyone shed some light on it to put my mind at rest? Thanks! Tony -- Tony Mountifield Work: tony@softins.co.uk - http://www.softins.co.uk Play: tony@mountifield.org - http://tony.mountifield.org
>Every so often I get a raft of messages like this: > >-- B-channel 0/1 successfully restarted on span 1 >-- B-channel 0/2 successfully restarted on span 1As far as I know, this is expected behavior. There is code to reset inactive B-channels periodically. I think the default is once an hour. I remember reading some previous posts about this so try doing a google search to get more info. Use this as your google search site:lists.digium.com "successfully restarted on span" Thanks, Bill Doll Jr System Engineer Big Sky Technologies, Inc. bdolljr@bigskytech.com (858) 715-5024 - Office (858) 715-5054 - Fax 34220 - FWD (www.freeworlddialup.com) 5024@bigskytech.com - SIP (voice) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040922/477e2dd8/attachment.htm
On Wed, 2004-09-22 at 10:18, Tony Mountifield wrote:> I have an Asterisk system running on T1 PRI trunks using a TE405P. It > seems to be running ok, but one thing puzzles me. > > Every so often I get a raft of messages like this: > > -- B-channel 0/1 successfully restarted on span 1 > -- B-channel 0/2 successfully restarted on span 1 > ....... > -- B-channel 0/22 successfully restarted on span 1 > -- B-channel 0/23 successfully restarted on span 1 > > I could understand having them when starting up or when the D channel > comes Up after having been Down, but I also get them during normal > operation while calls are active. It doesn't seem to disturb those > calls, as far as I can tell. > > Can anyone shed some light on it to put my mind at rest? Thanks! > > TonyThis is normal. I had the same question and the answer was, that this is a good thing to keep the channels as they should be. See this comment. http://lists.digium.com/pipermail/asterisk-users/2004-January/033709.html -- respectfully, Joseph ==============---------------------= ********** =
In article <cis1ir$o34$1@softins.clara.co.uk>, Tony Mountifield <tony@softins.clara.co.uk> wrote:> I have an Asterisk system running on T1 PRI trunks using a TE405P. It > seems to be running ok, but one thing puzzles me. > > Every so often I get a raft of messages like this: > > -- B-channel 0/1 successfully restarted on span 1 > -- B-channel 0/2 successfully restarted on span 1 > ....... > -- B-channel 0/22 successfully restarted on span 1 > -- B-channel 0/23 successfully restarted on span 1 > > I could understand having them when starting up or when the D channel > comes Up after having been Down, but I also get them during normal > operation while calls are active. It doesn't seem to disturb those > calls, as far as I can tell. > > Can anyone shed some light on it to put my mind at rest? Thanks!Thanks to Bill Doll and Joseph for their responses. I can rest easy now! Cheers Tony -- Tony Mountifield Work: tony@softins.co.uk - http://www.softins.co.uk Play: tony@mountifield.org - http://tony.mountifield.org
On Wed, 22 Sep 2004, Joseph wrote:> This is normal. I had the same question and the answer was, that this is > a good thing to keep the channels as they should be. > > See this comment. > http://lists.digium.com/pipermail/asterisk-users/2004-January/033709.htmlThis helps with the situation where asterisk and the other end of the link disagrees on whether a given channel is in use or not. Asterisk will send a reset once every hour for every channel it considers not in use. We apparently have the only piece of equipment where this causes a problem. The E1 pri card in a Panasonic KD-TD1232 resets _all_ channels whenever a single B channel is reset. Until we removed the reset all calls were dropped every hour. When I have more time I plan to make a patch to selectivly only reset the B channels when all the B channels on a span are idle. Peter