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Network Performance Monitor (NPM)

Forum Cisco IOS 16.6.3 no longer shows a PRI D channel as a seperate channel

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Cisco IOS 16.6.3 no longer shows a PRI D channel as a seperate channel

cfriell over 5 years ago

We monitor the up/down status of PRI's with NPM by monitoring the D channel of the PRI. (Channel 23:Signaling). Beginning with the implementation of Cisco IOS 16.6.3 on routers, we see that that channel has disappeared from being discovered by NPM. We now see only the 24 voice channels. Doing an SNMP walk of the MIB confirmed this.

Have others noticed this? How are others monitoring the up/down status of PRI's using NPM? I was thinking that possibly monitoring channel 23 would accomplish up/down monitoring, but if this is truly only the voice portion of the circuit, it won't work. Appreciate any input others have.

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cfriell over 5 years ago +1

Cisco has acknowledged that they have a defect in their IOS 16.6.3. Their last response to this was: after a huge effort to contact the developers a bug has been created and we are working closely with…

0 cfriell over 5 years ago

Cisco has acknowledged that they have a defect in their IOS 16.6.3. Their last response to this was: after a huge effort to contact the developers a
bug has been created and we are working closely with the development team to fix it.
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0 cfriell over 5 years ago in reply to cfriell

Thank you. Yes, we opened a Cisco TAC case several months ago and they discovered the bug and are continuing to work on it. In the meantime, our Network team has decided to go to a different Cisco IOS, which does not have the bug. Thanks for the follow-up Serena!
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