Refer to the exhibit. Given this "debug isdn q921" output, what is the problem with the PRI?
A. Layer 1 is down on the controller.
B. PRI does not have an IP address configured on the interface.
C. Nothing, the PRI is sending keepalives.
D. Layer 2 is down on the controller.
Refer to the exhibit. Given this "debug isdn q921" output, what is the problem with the PRI?
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answerhappygod
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Refer to the exhibit. Given this "debug isdn q921" output, what is the problem with the PRI?
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