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T1 WIC in Cisco 1751

Dargraham
Level 1
Level 1

‎09-17-2003 11:47 AM - edited ‎03-02-2019 10:24 AM

Having a problem that is hard to catch. It seems that the CSu is responding to a yellow alarm that only lasts about 1 second. It is my understanding that anything less than 3 seconds (yes that is seconds) is not supposed to get a response at the T1 level. However, it appears that he router is dropping the PVC and immediately re-establishing it. WHY?

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beng
Level 1
Level 1

‎09-17-2003 05:14 PM

Did you see the link flapping error messages in the log? If the configuration is correct, you may need to do more testing with telco.

Regards

/Bessie

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Dargraham
Level 1
Level 1
In response to beng

‎09-18-2003 04:23 AM

I'm sure that the errors are something that the LEC can isolate and fix. The problem is how the WIC/Router is reacting to an alarm condition. It seems inappropriate to respond to an alarm condition that lasts less than 2 or 3 seconds. I think the standard is 3 seconds. If so, anything less causes interuption of service as the PVC/Frame resets. Is there a means to turn off this reaction to alarm conditions to test this theory?

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