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PRI Interface bouncing posted 07/23/2007
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Hi,

here is the partial output from show log, can anyone see what is the
problem and how to proceed? To me it looks like layer 2 problem, but
how to verify that? By checking show isdn status command? Why
Controller is bouncing if Interface has Layer 2 issues?


Jul 23 10:18:59.531 extende: %LINK-3-UPDOWN: Interface Serial1/4, changed state to down Jul 23 10:24:53.505 extende: %CONTROLLER-5-UPDOWN: Controller E1 1/4, changed state to up Jul 23 10:24:55.505 extende: %LINK-3-UPDOWN: Interface Serial1/4, changed state to up Jul 23 10:24:59.505 extende: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se1/4:15, TEI 0 changed to down Jul 23 10:25:00.597 extende: %ISDN-6-LAYER2UP: Layer 2 for Interface Se1/4, TEI 0 changed to up Jul 23 10:27:43.897 extende: %CONTROLLER-5-UPDOWN: Controller E1 1/4, changed state to down Jul 23 10:27:44.893 extende: %CONTROLLER-5-UPDOWN: Controller E1 1/4, changed state to up

Regards,

Mohammad Zahed Saeed