NE A, B, C is the OSN 3500 composition chain networks, AC two stations each connected router, the IP router STM-1 of the POS port and OptiX SDH interfacing device, the PAS port will transmit Jl, C2 byte as the payload bytes (for bearer traffic), NE A and NE C created VC4 service, the network element B pass through as VC4. In this case, are there any alarms reported in the SDH network?

NE A, B, C is the OSN 3500 composition chain networks, AC two stations each connected router, the IP router STM-1 of the POS port and OptiX SDH interfacing device, the PAS port will transmit Jl, C2 byte as the payload bytes (for bearer traffic), NE A and NE C created VC4 service, the network element B pass through as VC4. In this case, are there any alarms reported in the SDH network?
A . No alarm
B . There is C2 mismatch warning
C . There is J1 mismatch warning
D . There is C2 unequipped alarm

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Answer: A