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<p>Mitul Limbani писал 05.09.2013 21:43:</p>
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<p>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.</p>
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<div>Don't really know exactly why it happens, it would be worthwhile to investigate if you see it again on CLI or logs.</div>
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<div>Mitul<span></span></div>
<div><br />On Friday, September 6, 2013, Richard Mudgett wrote:<br />
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<div class="gmail_quote">On Thu, Sep 5, 2013 at 1:02 PM, jg <span><<a>webaccounts@jgoettgens.de</a>></span> wrote:<br />
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb; padding-left: 1ex;">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).<br /><br /> Once in a while I do see the following libpri error messages simultaneously on both boxes:<br /><br /> PRI Span: 1 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /> ...<br /> PRI Span: 4 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)<br /><br /> 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.<br /><br /> Does anybody know what to do with these messages?</blockquote>
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<div>Q.921 just says to log the condition and carry on as if it did not happen. It does not say what to do<br />about it. The condition is likely to happen when the Q.921 peers are out of sync with each other. When<br /> you reboot your machines, they will be out of sync with each other for awhile. I cannot think of a<br />particular sequence of events off-hand where it would happen though.<br /><br />Richard<br /><br /></div>
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<div dir="ltr">Regards,<br />Mitul Limbani,<br />Chief Architech & Founder,<br />Enterux Solutions Pvt. Ltd.<br />110 Reena Complex, Opp. Nathani Steel, <br />Vidyavihar (W), Mumbai - 400 086. India<br /><a href="http://www.enterux.com/">http://www.enterux.com/</a><br /><a href="http://www.entvoice.com/">http://www.entvoice.com/</a><br />email: <a href="mailto:mitul@enterux.in">mitul@enterux.in</a><br /> DID: +91-22-71967196<br />Cell: +91-9820332422<br /><br /></div>
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<pre><span class="sig"><span style="color: #999999;">-- </span><br /><span style="color: #999999;">With Best Regards</span><br /><span style="color: #999999;"><a title="mailto:mlischuk@itx.com.ua" href="mailto:mlischuk@itx.com.ua">Mikhail Lischuk</a></span><br /><span style="color: #999999;"><br /></span></span></pre>
<pre><span class="sig"><span style="color: #999999;">+380681244933</span></span></pre>
<pre><span class="sig"><span style="color: #999999;">+380504182274</span><br /><br /></span></pre>
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