Question: Each SONET STS-1 frame contains 9 Path Overhead bytes, which can be used as a subchannel to send end-to-end monitoring/management messages between user devices. The

Each SONET STS-1 frame contains 9 Path Overhead bytes, which can be used as a subchannel to send end-to-end monitoring/management messages between user devices. The full STS-1/OC-1 transmission rate is 51.84 Mbps. What is the Path Overhead subchannel rate, in bits/sec? That is, how many bits per second (out of the 51.84 Mbps) carry Path Overhead information?

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