ISDN layer 2 flapping

Unanswered Question
Oct 2nd, 2008

Hi All,

I have a problem with an isdn circuit layer 2 and have been through other postings but none have helped so far.

*Oct 2 12:06:49.391: %CONTROLLER-5-UPDOWN: Controller E1 0/1/0, changed state t

o down (AIS detected)

*Oct 2 12:06:49.395: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/1/0:15, TEI

0 changed to down

*Oct 2 12:06:51.391: %LINK-3-UPDOWN: Interface Serial0/1/0:15, changed state to

down

*Oct 2 12:07:15.391: %CONTROLLER-5-UPDOWN: Controller E1 0/1/0, changed state t

o up

*Oct 2 12:07:15.411: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/1/0:15, TEI 0

changed to up

*Oct 2 12:07:17.391: %LINK-3-UPDOWN: Interface Serial0/1/0:15, changed state to

up

*Oct 2 12:07:36.391: %CONTROLLER-5-UPDOWN: Controller E1 0/1/0, changed state t

o down (RAI detected)

*Oct 2 12:07:36.395: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/1/0:15, TEI

0 changed to down

*Oct 2 12:07:38.391: %CONTROLLER-5-UPDOWN: Controller E1 0/1/0, changed state t

o up

*Oct 2 12:07:38.419: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/1/0:15, TEI 0

changed to up

*Oct 2 12:07:46.459: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/1/0:15, TEI

0 changed to downC

Any ideas ??

I have this problem too.
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slongewa Thu, 10/02/2008 - 04:53

I'm from the US and don't get to see E1's very often, but the last time I saw behavior like this, I had to have the Telco change the port out that they were using on their switch and it resolved the problem. Have you tried anything with the Telco yet?

HTH,

Steve

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