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About transport of monitoring packets in the network, which of the following is wrong？

()

A.PTN62006300 can implement exchange of monitoring packets through gateway board and MSTP device.

B.Monitoring packets of PTN network are forwarded through layer 3 routes, without tunnel/PW encapsulation and decapsulation.

C.PTN devices, defined by distinct protocol standards G.8114 and Y.1731, cannot exchange monitoring packets with each other.

D.A PTN6100 can learn 150 mac addresses per second.

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