[asterisk-users] MDL-ERROR
I have 2 ISDN BRI boxes, each with 4 spans, where the first one is configured as CPE, the second one as NET(so I don't need real lines for developing and testing). Once in a while I do see the following libpri error messages simultaneously on both boxes: PRI Span: 1 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) ... PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) It does not seem to be a severe error, because everything seems to work. I have not yet figured out how to produce these error messages reliably. They seem to appear after booting both machines before any calls have been made. Does anybody know what to do with these messages? The BRI cards are 100% ok and I have never seen these messages when connected to a public circuit. jg -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] MDL-ERROR
On Thu, Sep 5, 2013 at 1:02 PM, jg webaccou...@jgoettgens.de wrote: I have 2 ISDN BRI boxes, each with 4 spans, where the first one is configured as CPE, the second one as NET(so I don't need real lines for developing and testing). Once in a while I do see the following libpri error messages simultaneously on both boxes: PRI Span: 1 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) ... PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) It does not seem to be a severe error, because everything seems to work. I have not yet figured out how to produce these error messages reliably. They seem to appear after booting both machines before any calls have been made. Does anybody know what to do with these messages? Q.921 just says to log the condition and carry on as if it did not happen. It does not say what to do about it. The condition is likely to happen when the Q.921 peers are out of sync with each other. When you reboot your machines, they will be out of sync with each other for awhile. I cannot think of a particular sequence of events off-hand where it would happen though. Richard -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] MDL-ERROR
Mitul Limbani писал 05.09.2013 21:43: Something very similar happened on our boxes and we did nothing special apart from changing DAHDI and Asterisk versions to higher stable (2.6.1 n 1.8.14 respectively) and it went off. Don't really know exactly why it happens, it would be worthwhile to investigate if you see it again on CLI or logs. Mitul On Friday, September 6, 2013, Richard Mudgett wrote: On Thu, Sep 5, 2013 at 1:02 PM, jg webaccou...@jgoettgens.de wrote: I have 2 ISDN BRI boxes, each with 4 spans, where the first one is configured as CPE, the second one as NET(so I don't need real lines for developing and testing). Once in a while I do see the following libpri error messages simultaneously on both boxes: PRI Span: 1 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) ... PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established) It does not seem to be a severe error, because everything seems to work. I have not yet figured out how to produce these error messages reliably. They seem to appear after booting both machines before any calls have been made. Does anybody know what to do with these messages? Q.921 just says to log the condition and carry on as if it did not happen. It does not say what to do about it. The condition is likely to happen when the Q.921 peers are out of sync with each other. When you reboot your machines, they will be out of sync with each other for awhile. I cannot think of a particular sequence of events off-hand where it would happen though. Richard -- Regards, Mitul Limbani, Chief Architech Founder, Enterux Solutions Pvt. Ltd. 110 Reena Complex, Opp. Nathani Steel, Vidyavihar (W), Mumbai - 400 086. India http://www.enterux.com/ [4] http://www.entvoice.com/ [5] email: mi...@enterux.in DID: +91-22-71967196 Cell: +91-9820332422 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com [1] -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello [2] asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users [3] -- With Best Regards Mikhail Lischuk +380681244933 +380504182274 Links: -- [1] http://www.api-digital.com [2] http://www.asterisk.org/hello [3] http://lists.digium.com/mailman/listinfo/asterisk-users [4] http://www.enterux.com/ [5] http://www.entvoice.com/ -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] MDL-ERROR
Q.921 just says to log the condition and carry on as if it did not happen. I guess you mean: carry on if it happened (and don't care any more). Sorry, English is not my mother tongue. I didn't see the 'not'. -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] MDL-ERROR
Something very similar happened on our boxes and we did nothing special
apart from changing DAHDI and Asterisk versions to higher stable (2.6.1 n
1.8.14 respectively) and it went off.
Don't really know exactly why it happens, it would be worthwhile to
investigate if you see it again on CLI or logs.
Mitul
On Friday, September 6, 2013, Richard Mudgett wrote:
On Thu, Sep 5, 2013 at 1:02 PM, jg
webaccou...@jgoettgens.dejavascript:_e({}, 'cvml',
'webaccou...@jgoettgens.de');
wrote:
I have 2 ISDN BRI boxes, each with 4 spans, where the first one is
configured as CPE, the second one as NET(so I don't need real lines for
developing and testing).
Once in a while I do see the following libpri error messages
simultaneously on both boxes:
PRI Span: 1 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
...
PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state
7(Multi-frame established)
It does not seem to be a severe error, because everything seems to work.
I have not yet figured out how to produce these error messages reliably.
They seem to appear after booting both machines before any calls have been
made.
Does anybody know what to do with these messages?
Q.921 just says to log the condition and carry on as if it did not
happen. It does not say what to do
about it. The condition is likely to happen when the Q.921 peers are out
of sync with each other. When
you reboot your machines, they will be out of sync with each other for
awhile. I cannot think of a
particular sequence of events off-hand where it would happen though.
Richard
--
Regards,
Mitul Limbani,
Chief Architech Founder,
Enterux Solutions Pvt. Ltd.
110 Reena Complex, Opp. Nathani Steel,
Vidyavihar (W), Mumbai - 400 086. India
http://www.enterux.com/
http://www.entvoice.com/
email: mi...@enterux.in
DID: +91-22-71967196
Cell: +91-9820332422
--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
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Re: [asterisk-users] MDL-ERROR
Q.921 just says to log the condition and carry on as if it did not happen. I guess you mean: carry on if it happened (and don't care any more). It does not say what to do about it. It seems that making some calls makes these error messages go away. I am going to write a test script that monitors the log file for the message and triggers a call if one occurs. Then I'll see whether my hypothesis is correct. The condition is likely to happen when the Q.921 peers are out of sync with each other. When you reboot your machines, they will be out of sync with each other for awhile. It doesn't happen all the time, though. I have skimmed, but not studied, the Q.921 ITU specs already, and for synchronization it may be necessary that libpri is active (essentially getting * to run ASAP after starting the machine) and that just starting the driver (wanrouter in my case) is not sufficient to sync the cards. I have to test this, but the idea is that letting the cards communicate without some higher level support from libpri may be responsible for the error condition. I cannot think of a particular sequence of events off-hand where it would happen though. I'll keep watching for whatever might trigger the error condition. jg -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
