As far as we know, when the Telco provided a loop in our interface we are able to see the word(looped) in the interface. It means the conneection is being looped and testing are going on. However, I was informed by telco staf that we are unable to see this word while troubleshoooting for ATM interface. in fact, today, I faced the same issue when the Telco requested me to check for a loop and I were not able at all to see them. They only informed me that you wont be able to see it if ATM interface. The main thing I want to know is WHY. Is it something to do with Cells as ATM uses celss for transmission and not packets or due to Virtual Circuit Identifier (VCI)/VPI ? If anyone have the info, please let me know. Thanks in advanced.
I have this problem too.