05-01-2018 06:14 PM - edited 03-08-2019 02:51 PM
I have a Cisco ISR 4331 series router with T3/E3 card. Are there any software restrictions to create serial sub-interfaces? I am not able to create any sub-interfaces.
Thanks,
05-01-2018 06:36 PM
What is the exact part number of the module?
05-01-2018 06:46 PM
Part# SM-X-1T3/E3
Descriptor: One port T3/E3 Service Module
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